CN114685335B - 氢键有机催化剂、其制备方法和应用 - Google Patents
氢键有机催化剂、其制备方法和应用 Download PDFInfo
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- CN114685335B CN114685335B CN202011615505.0A CN202011615505A CN114685335B CN 114685335 B CN114685335 B CN 114685335B CN 202011615505 A CN202011615505 A CN 202011615505A CN 114685335 B CN114685335 B CN 114685335B
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- SRVFFFJZQVENJC-IHRRRGAJSA-N aloxistatin Chemical compound CCOC(=O)[C@H]1O[C@@H]1C(=O)N[C@@H](CC(C)C)C(=O)NCCC(C)C SRVFFFJZQVENJC-IHRRRGAJSA-N 0.000 description 1
- 150000001371 alpha-amino acids Chemical class 0.000 description 1
- 235000008206 alpha-amino acids Nutrition 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005815 base catalysis Methods 0.000 description 1
- SRSXLGNVWSONIS-UHFFFAOYSA-N benzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-N 0.000 description 1
- 229940092714 benzenesulfonic acid Drugs 0.000 description 1
- KSCRVOKQPYZBHZ-IXPOFIJOSA-N benzyl n-[(2s)-1-[[(2s)-1-[[(2s)-1-(1,3-benzothiazol-2-yl)-1-oxo-3-[(3s)-2-oxopyrrolidin-3-yl]propan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-3-methyl-1-oxobutan-2-yl]carbamate Chemical compound N([C@H](C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](C[C@H]1C(NCC1)=O)C(=O)C=1SC2=CC=CC=C2N=1)C(C)C)C(=O)OCC1=CC=CC=C1 KSCRVOKQPYZBHZ-IXPOFIJOSA-N 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 229940125872 compound 4d Drugs 0.000 description 1
- 229940126115 compound 4f Drugs 0.000 description 1
- 229940125880 compound 4j Drugs 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- ZZVUWRFHKOJYTH-UHFFFAOYSA-N diphenhydramine Chemical group C=1C=CC=CC=1C(OCCN(C)C)C1=CC=CC=C1 ZZVUWRFHKOJYTH-UHFFFAOYSA-N 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 150000007529 inorganic bases Chemical class 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 150000007527 lewis bases Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- GPKUICFDWYEPTK-UHFFFAOYSA-N methoxycyclohexatriene Chemical compound COC1=CC=C=C[CH]1 GPKUICFDWYEPTK-UHFFFAOYSA-N 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- QAPTWHXHEYAIKG-RCOXNQKVSA-N n-[(1r,2s,5r)-5-(tert-butylamino)-2-[(3s)-2-oxo-3-[[6-(trifluoromethyl)quinazolin-4-yl]amino]pyrrolidin-1-yl]cyclohexyl]acetamide Chemical compound CC(=O)N[C@@H]1C[C@H](NC(C)(C)C)CC[C@@H]1N1C(=O)[C@@H](NC=2C3=CC(=CC=C3N=CN=2)C(F)(F)F)CC1 QAPTWHXHEYAIKG-RCOXNQKVSA-N 0.000 description 1
- VZUGBLTVBZJZOE-KRWDZBQOSA-N n-[3-[(4s)-2-amino-1,4-dimethyl-6-oxo-5h-pyrimidin-4-yl]phenyl]-5-chloropyrimidine-2-carboxamide Chemical compound N1=C(N)N(C)C(=O)C[C@@]1(C)C1=CC=CC(NC(=O)C=2N=CC(Cl)=CN=2)=C1 VZUGBLTVBZJZOE-KRWDZBQOSA-N 0.000 description 1
- XZMHJYWMCRQSSI-UHFFFAOYSA-N n-[5-[2-(3-acetylanilino)-1,3-thiazol-4-yl]-4-methyl-1,3-thiazol-2-yl]benzamide Chemical compound CC(=O)C1=CC=CC(NC=2SC=C(N=2)C2=C(N=C(NC(=O)C=3C=CC=CC=3)S2)C)=C1 XZMHJYWMCRQSSI-UHFFFAOYSA-N 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- AKRYBBWYDSDZHG-UHFFFAOYSA-N nitrosobis(2-oxopropyl)amine Chemical compound CC(=O)CN(N=O)CC(C)=O AKRYBBWYDSDZHG-UHFFFAOYSA-N 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000003408 phase transfer catalysis Methods 0.000 description 1
- 229940117953 phenylisothiocyanate Drugs 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- RWWYLEGWBNMMLJ-YSOARWBDSA-N remdesivir Chemical compound NC1=NC=NN2C1=CC=C2[C@]1([C@@H]([C@@H]([C@H](O1)CO[P@](=O)(OC1=CC=CC=C1)N[C@H](C(=O)OCC(CC)CC)C)O)O)C#N RWWYLEGWBNMMLJ-YSOARWBDSA-N 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- ITMCEJHCFYSIIV-UHFFFAOYSA-N triflic acid Chemical compound OS(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-N 0.000 description 1
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
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Abstract
本发明公开了一种氢键有机催化剂、其制备方法和应用。具体公开了一种如式I或式II所示的化合物,该氢键有机催化剂结构新颖,可用于吸电子基衍生的醛/酮亚胺的氰基化反应,催化剂用量低,反应操作简单、收率高且对映选择性高,底物普适性高。
Description
技术领域
本发明涉及了一种氢键有机催化剂、其制备方法和应用。
背景技术
早在1850年德国化学家Strecker将乙醛、氨水和氢氰酸混合反应得到α-氨基腈,α-氨基腈类化合物经过水解可以制备天然或非天然氨基酸,该方法被称为Strecker合成法。Strecker合成法在α-氨基酸合成,药物以及天然产物中间体的合成过程中有着广泛的应用。该方法中的关键反应——亚胺的氰基化反应(Strecker反应)已取得了很大的进展。
Lipton课题组于1996年报道了第一例不对称Strecker反应。经过二十多年的发展,已有多种催化体系被报道。
手性金属(Al,Mg,Ti,Mn,V,Yb,Gd,Er,Zr,La,Ru/Li,Sc/Li)/配体络合物催化的不对称Strecker反应中取得了良好的收率与对映选择性。但这类反应通常涉及昂贵的过渡金属或配体,对氧气、水等敏感,反应条件比较苛刻。
有机小分子催化的不对称Strecker反应体系根据反应催化剂催化模式的不同可以主要分为:Lewis碱催化、Bronsted酸催化、氢键催化、相转移催化等,但这类反应通常面临反应时间长,催化剂用量大,反应温度过低(-78至-30℃)等问题。
其中,氢键催化的不对称Strecker反应体系不含过渡金属,条件温和且操作简单,具有广阔的应用前景。但是此类催化剂对亚胺类底物有很大的局限性,对于醛亚胺,发展的催化体系主要适用于二苯次甲基,苄基,烯丙基等给电子基保护的亚胺,而对吸电子基保护的亚胺的不对称Strecker反应仅有一例(Saravanan S,et al.ACS Catal.2013,3,2873-2880)。对于酮亚胺底物,到目前为止仅有Jacobsen小组一例报道(Vachal P,JacobsenE.N.Org.Lett.2000,2(6),867–870),此反应要用到剧毒的氢氰酸,且的底物仅局限于甲基酮衍生的给电子基保护的亚胺。截至目前适用于含酯基、三氟甲基等吸电子基衍生的酮亚胺的Strecker反应的催化剂仍是空白。
发明内容
本发明所要解决的技术问题是现有的氢键催化体系无法实现对吸电子基衍生的醛/酮亚胺的氰基化反应。为此,本发明提供了一种氢键有机催化剂、其制备方法和应用,该氢键有机催化剂结构新颖,可用于吸电子基衍生的醛/酮亚胺的氰基化反应,催化剂用量低,反应操作简单、收率高且对映选择性高,底物普适性高。
本发明通过下述方案解决上述技术问题。
本发明提供了一种如式I或式II所示的化合物,
其中,
X1、X2、Y1和Y2独立地为O或S;
R1、R2、R5和R6独立地为C1-C6烷基、C6-C10芳基或苄基;
R3、R4、R7和R8独立地为C6-C10芳基或“被一个或多个Ra取代的C6-C10芳基”;
各Ra独立地为C1-C6烷氧基、“被一个或多个卤素取代的C1-C6烷基”或硝基。
在本发明某一优选实施方案中,所述的如式I或式II所示的化合物中的某些基团如下定义,未提及的基团同本申请任一方案所述,当R1、R2、R5和R6独立地为C1-C6烷基时,所述C1-C6烷基为C1-C4烷基,例如甲基、乙基、异丙基、1-甲基-丙基、2-甲基-丙基或叔丁基。
在本发明某一优选实施方案中,所述的如式I或式II所示的化合物中的某些基团如下定义,未提及的基团同本申请任一方案所述,当R1、R2、R5和R6独立地为C6-C10芳基时,所述C6-C10芳基为苯基或萘基,例如苯基。
在本发明某一优选实施方案中,所述的如式I或式II所示的化合物中的某些基团如下定义,未提及的基团同本申请任一方案所述,当R3、R4、R7和R8独立地为C6-C10芳基时,所述C6-C10芳基为苯基或萘基。
在本发明某一优选实施方案中,所述的如式I或式II所示的化合物中的某些基团如下定义,未提及的基团同本申请任一方案所述,当R3、R4、R7和R8独立地为被一个或多个Ra取代的C6-C10芳基时,所述被一个或多个Ra取代的C6-C10芳基为“被一个或多个Ra取代的苯基”或“被一个或多个Ra取代的萘基”,例如被一个或多个Ra取代的苯基,再例如 当Ra的取代个数为多个时,各Ra相同或不同。
在本发明某一优选实施方案中,所述的如式I或式II所示的化合物中的某些基团如下定义,未提及的基团同本申请任一方案所述,当各Ra独立地为C1-C6烷氧基时,所述C1-C6烷氧基为C1-C4烷氧基,例如甲氧基。
在本发明某一优选实施方案中,所述的如式I或式II所示的化合物中的某些基团如下定义,未提及的基团同本申请任一方案所述,当各Ra独立地为被一个或多个卤素取代的C1-C6烷基时,所述卤素为F、Cl、Br或I,例如F。
在本发明某一优选实施方案中,所述的如式I或式II所示的化合物中的某些基团如下定义,未提及的基团同本申请任一方案所述,当各Ra独立地为被一个或多个卤素取代的C1-C6烷基时,所述C1-C6烷基为C1-C4烷基,例如甲基。
在本发明某一优选实施方案中,所述的如式I或式II所示的化合物中的某些基团如下定义,未提及的基团同本申请任一方案所述,当各Ra独立地为被一个或多个卤素取代的C1-C6烷基时,所述被一个或多个卤素取代的C1-C6烷基为CF3。
在本发明某一优选实施方案中,所述的如式I或式II所示的化合物中的某些基团如下定义,未提及的基团同本申请任一方案所述,当R3、R4、R7和R8独立地为被一个或多个Ra取代的C6-C10芳基时,所述被一个或多个Ra取代的C6-C10芳基为
在本发明某一优选实施方案中,所述的如式I所示的化合物中的某些基团如下定义,未提及的基团同本申请任一方案所述,X1和X2的定义相同。
在本发明某一优选实施方案中,所述的如式I所示的化合物中的某些基团如下定义,未提及的基团同本申请任一方案所述,R1和R2的定义相同。
在本发明某一优选实施方案中,所述的如式I所示的化合物中的某些基团如下定义,未提及的基团同本申请任一方案所述,R3和R4的定义相同。
在本发明某一优选实施方案中,所述的如式I所示的化合物中的某些基团如下定义,R1和R2独立地为C1-C6烷基或苄基。
在本发明某一优选实施方案中,所述的如式II所示的化合物中的某些基团如下定义,未提及的基团同本申请任一方案所述,Y1和Y2的定义相同。
在本发明某一优选实施方案中,所述的如式II所示的化合物中的某些基团如下定义,未提及的基团同本申请任一方案所述,R5和R6的定义相同。
在本发明某一优选实施方案中,所述的如式II所示的化合物中的某些基团如下定义,未提及的基团同本申请任一方案所述,R7和R8的定义相同。
在本发明某一方案中,所述如式I所示的化合物选自如下任一化合物:
在本发明某一方案中,所述如式II所示的化合物选自如下任一化合物:
本发明还提供了如式I所示的化合物的制备方法,其包括以下步骤:
如式B所示化合物与R3N=C=X1、R4N=C=X2进行如下缩合反应,得到如式I所示的化合物,
其中,R1、R2、X1、X2、R3和R4的定义如前任一项所述。
本发明还提供了如式II所示的化合物的制备方法,其包括以下步骤:
如式D所示化合物与R7N=C=Y1、R8N=C=Y2进行如下缩合反应,得到如式II所示的化合物,
其中,R5、R6、Y1、Y2、R7和R8的定义如前任一项所述。
所述如式I所示的化合物的制备方法或所述如式II所示的化合物的制备方法的条件可为本领域该类缩合反应常规使用的条件,本发明特别优选如下:
所述缩合反应中,所述如式B所示化合物与R3N=C=X1的摩尔比为1:(1~2),例如1:1.125或1:1.5。
所述缩合反应中,所述如式B所示化合物与R4N=C=X2的摩尔比为1:(1~2),例如1:1.125或1:1.5。
所述缩合反应中,所述如式D所示化合物与R7N=C=Y1的摩尔比为1:(1~2),例如1:1.125或1:1.5。
所述缩合反应中,所述如式D所示化合物与R8N=C=Y2的摩尔比为1:(1~2),例如1:1.125或1:1.5。
所述缩合反应在溶剂中进行,所述溶剂可为常规有机溶剂,优选二氯甲烷、氯仿、1,2-二氯乙烷、乙醚、异丙醚、甲基叔丁基醚、四氢呋喃和二氧六环中的一种或多种,例如二氯甲烷和/或四氢呋喃。
所述缩合反应的温度为-20℃~80℃,例如20~40℃。
所述缩合反应可采用本领域常规的监测方法,例如HPLC或TLC,一般以所述如B或D所示化合物消失或不再反应时作为反应终点,停止反应。较佳地,所述缩合反应的时间为8~15小时,例如12小时。
所述如式I所示的化合物的制备方法中,还可进一步包括以下步骤:
(1)溶剂中,在缩合剂的存在下,邻苯二胺与如式E-1所示N-保护的氨基酸、如式E-2所示N-保护的氨基酸进行如下缩合反应,得如式A所示化合物;
(2)有溶剂或无溶剂中,在酸的存在下,如式A所示化合物经如下氨基脱保护反应得如式B所示化合物;
其中,R1和R2的定义如前任一项所述。
所述如式II所示的化合物的制备方法中,还可进一步包括以下步骤:
(1)溶剂中,在缩合剂的存在下,1,8-二氨基蒽与如式F-1所示N-保护的氨基酸、如式F-2所示N-保护的氨基酸进行如下缩合反应,得如式C所示化合物;
(2)溶剂中,在酸的存在下,如式C所示化合物经氨基脱保护得如式D所示化合物;
其中,R5和R6的定义如前任一项所述。
如式A所示化合物的制备方法或如式C所示化合物的制备方法的条件可为本领域缩合反应常规使用的条件,本发明特别优选如下:
步骤(1)中,所述缩合剂可为常规酰胺类缩合剂,较佳地,所述缩合剂为EDCI,HATU,HBTU,HCTU,BOP,DCC和EDC中的一种或几种,例如DCC和/或HBTU。
步骤(1)中,所述缩合剂与邻苯二胺的摩尔比为(2.4~4.8):1,例如1:2.5或1:3.3。
步骤(1)中,邻苯二胺、所述如式E-1所示N-保护的氨基酸和所述如式E-2所示N-保护的氨基酸的摩尔比为1:(1~2):(1~2),例如1:1.25:1.25或1:1.65:1.65。
步骤(1)中,所述缩合剂与1,8-二氨基蒽的摩尔比为(2.4~4.8):1,例如1:2.5或1:3.3。
步骤(1)中,1,8-二氨基蒽、所述如式F-1所示N-保护的氨基酸和所述如式F-2所示N-保护的氨基酸的摩尔比为1:(1~2):(1~2),例如1:1.25:1.25或1:1.65:1.65。
步骤(1)中,所述的溶剂可为常规有机溶剂,优选二氯甲烷、氯仿、1,2-二氯乙烷、乙酸乙酯、乙醚、异丙醚、甲基叔丁基醚和四氢呋喃中的一种或多种,例如二氯甲烷。
步骤(1)中,可以适当加入碱促进反应,较佳地,所述碱为有机碱,优选为二异丙基乙胺和/或三乙胺,例如二异丙基乙胺。所述碱与邻苯二胺的摩尔比为(2~6):1,例如4:1。所述碱与1,8-二氨基蒽的摩尔比为(2~6):1,例如4:1。
步骤(1)中,所述缩合反应的温度为-20℃~80℃,例如40℃。
步骤(1)中,所述缩合反应可采用本领域常规的监测方法,例如HPLC或TLC,一般以邻苯二胺或1,8-二氨基蒽消失或不再反应时作为反应终点,停止反应。较佳地,所述缩合反应的时间为0.5~3天,例如1天或2天。
如式B所示化合物的制备方法或如式D所示化合物的制备方法的条件可为本领域缩合反应常规使用的条件,本发明特别优选如下:
步骤(2)中,所述的酸可为常规有机酸或无机酸,较佳地,所述的酸为盐酸、硫酸、磷酸、三氟乙酸、三氟甲磺酸、对甲苯磺酸和苯磺酸中的一种或多种,例如三氟乙酸。
步骤(2)中,当为有溶剂时,所述的溶剂可为常规有机溶剂,优选二氯甲烷、氯仿和1,2-二氯乙烷中的一种或多种,例如二氯甲烷。
步骤(2)中,所述氨基脱保护反应的温度为-20℃~80℃,例如25℃。
所述氨基脱保护反应可采用本领域常规的监测方法,例如HPLC或TLC,一般以所述如A或C所示化合物消失或不再反应时作为反应终点,停止反应。较佳地,所述氨基脱保护反应的时间为0.5~3小时,例如1.5小时。
本发明还提供了所述如式I或式II所示的化合物的应用,所述如式I或式II所示的化合物用作催化剂。
所述应用中,较佳地,所述如式I或式II所示的化合物在亚胺类化合物的氰基化反应中用作催化剂。
所述应用中,较佳地,所述亚胺类化合物为如式III或式IV所示的化合物:
其中,PG为氨基保护基;
L1为单键、-CH=CH-或-C≡C-;
R9为“杂原子选自N、O和S中的一种或多种,杂原子数为1-4个的3-10元杂芳基”、被一个或多个Rb取代的“杂原子选自N、O和S中的一种或多种,杂原子数为1-4个的3-10元杂芳基”、C6-C10芳基或“被一个或多个Rc取代的C6-C10芳基”;
Rb和Rc独立地为卤素、C1-C6烷基、被一个或多个卤素取代的C1-C6烷基、C1-C6烷氧基或硝基;
R10为氢、C1-C6烷基、被一个或多个Rd取代的C1-C6烷基、-CO2Re或“杂原子选自N、O和S中的一种或多种,杂原子数为1-4个的3-10元杂环烷基”;
各Rd独立地为卤素或-CO2Re;
Re为C1-C6烷基;
R11、R12、R13和R14独立地为H、卤素、硝基、C1-C6烷基、C1-C6烷氧基或“被一个或多个卤素取代的C1-C6烷基”;
n为0或1;
R15为H、C1-C6烷基或苄基。
在本发明某一优选实施方案中,所述的如式III或式IV所示的化合物中的某些基团如下定义,未提及的基团同本申请任一方案所述,所述氨基保护基为叔丁氧羰基(Boc)、苄基(Bn)、苄氧羰基(Cbz)、对甲氧基苯基(PMP),三苯基甲基(Trt)、二苯基甲基、二苯基膦甲基、二苯基膦氧基、苯磺酰基、苯亚磺酰基或苯并噻唑基例如叔丁氧羰基、苄基、苄氧羰基、对甲氧基苯基、二苯基甲基、二苯基膦氧基、苯磺酰基或苯并噻唑基又例如叔丁氧羰基、苄基、苄氧羰基或苯磺酰基。
在本发明某一优选实施方案中,所述的如式III所示的化合物中的某些基团如下定义,未提及的基团同本申请任一方案所述,当R9为“杂原子选自N、O和S中的一种或多种,杂原子数为1-4个的3-10元杂芳基”为,所述“杂原子选自N、O和S中的一种或多种,杂原子数为1-4个的3-10元杂芳基”为“杂原子选自N、O和S中的一种或多种,杂原子数为1-2个的3-6元杂芳基”,例如噻吩基,再例如
在本发明某一优选实施方案中,所述的如式III所示的化合物中的某些基团如下定义,未提及的基团同本申请任一方案所述,当R9为C6-C10芳基时,所述C6-C10芳基为苯基或萘基。
在本发明某一优选实施方案中,所述的如式III所示的化合物中的某些基团如下定义,未提及的基团同本申请任一方案所述,当Rb和Rc独立地为卤素时,所述卤素为F、Cl、Br或I,例如F、Cl或Br。
在本发明某一优选实施方案中,所述的如式III所示的化合物中的某些基团如下定义,未提及的基团同本申请任一方案所述,当Rb和Rc独立地为C1-C6烷基时,所述C1-C6烷基为C1-C4烷基,例如甲基。
在本发明某一优选实施方案中,所述的如式III所示的化合物中的某些基团如下定义,未提及的基团同本申请任一方案所述,当Rb和Rc独立地为被一个或多个卤素取代的C1-C6烷基时,所述被一个或多个卤素取代的C1-C6烷基为CF3。
在本发明某一优选实施方案中,所述的如式III所示的化合物中的某些基团如下定义,未提及的基团同本申请任一方案所述,当Rb和Rc独立地为C1-C6烷氧基时,所述C1-C6烷氧基为C1-C4烷氧基,例如甲氧基。
在本发明某一优选实施方案中,所述的如式III所示的化合物中的某些基团如下定义,未提及的基团同本申请任一方案所述,当R10为C1-C6烷基时,所述C1-C6烷基为C1-C4烷基,例如甲基。
在本发明某一优选实施方案中,所述的如式III所示的化合物中的某些基团如下定义,未提及的基团同本申请任一方案所述,当R10为被一个或多个Rd取代的C1-C6烷基时,所述C1-C6烷基为C1-C4烷基,例如甲基或丙基。
在本发明某一优选实施方案中,所述的如式III所示的化合物中的某些基团如下定义,未提及的基团同本申请任一方案所述,当各Rd独立地为卤素时,所述卤素为F、Cl、Br或I,例如F。
在本发明某一优选实施方案中,所述的如式III所示的化合物中的某些基团如下定义,未提及的基团同本申请任一方案所述,当Re为C1-C6烷基时,所述C1-C6烷基为C1-C4烷基,例如乙基。
在本发明某一优选实施方案中,所述的如式III所示的化合物选自如下任一化合物:
在本发明某一优选实施方案中,所述的如式IV所示的化合物中的某些基团如下定义,未提及的基团同本申请任一方案所述,当R11、R12、R13和R14独立地为卤素时,所述卤素为F、Cl、Br或I,例如F、Cl或Br。
在本发明某一优选实施方案中,所述的如式IV所示的化合物中的某些基团如下定义,未提及的基团同本申请任一方案所述,当R11、R12、R13和R14独立地为C1-C6烷基时,所述C1-C6烷基为C1-C4烷基,例如甲基。
在本发明某一优选实施方案中,所述的如式IV所示的化合物中的某些基团如下定义,未提及的基团同本申请任一方案所述,当R11、R12、R13和R14独立地为C1-C6烷氧基时,所述C1-C6烷氧基为C1-C4烷氧基,例如甲氧基。
在本发明某一优选实施方案中,所述的如式IV所示的化合物中的某些基团如下定义,未提及的基团同本申请任一方案所述,当R11、R12、R13和R14独立地为被一个或多个卤素取代的C1-C6烷基时,所述被一个或多个卤素取代的C1-C6烷基为CF3。
在本发明某一优选实施方案中,所述的如式IV所示的化合物中的某些基团如下定义,未提及的基团同本申请任一方案所述,当R15为C1-C6烷基时,所述C1-C6烷基为C1-C4烷基,例如甲基。
在本发明某一优选实施方案中,所述的如式IV所示的化合物中的某些基团如下定义,未提及的基团同本申请任一方案所述,n为0。
在本发明某一优选实施方案中,所述的如式IV所示的化合物选自如下任一化合物:
所述应用中,较佳地,当所述亚胺类化合物为如式III所示的化合物时,所述氰基化反应包括如下步骤:
在如式I或式II所示的化合物的催化下,在碱的存在下,如式III所示的化合物与三甲基氰硅烷(TMSCN)进行如下氰基化反应,得如式V所示的化合物;
其中,PG、L1、R9和R10的定义如前任一项所述。
所述的如式V所示的化合物选自如下任一化合物:
所述应用中,较佳地,当所述亚胺类化合物为如式IV所示的化合物时,所述氰基化反应包括如下步骤:
在如式I或式II所示的化合物的催化下,在碱的存在下,如式III所示的化合物与三甲基氰硅烷(TMSCN)进行如下氰基化反应,得如式V所示的化合物;
其中,PG、n、R11、R12、R13、R14和R15的定义如前任一项所述。
所述的如式VI所示的化合物选自如下任一化合物:
所述氰基化反应的条件可为本领域氰基化反应常规使用的条件,本发明特别优选如下:
所述氰基化反应在溶剂中进行,所述溶剂可为常规有机溶剂,较佳地,所述的溶剂为芳烃类溶剂、烃类溶剂、卤代烃类溶剂、腈类溶剂、酯类溶剂和醚类溶剂中的一种或多种,例如正己烷、甲苯、二氯甲烷、甲基叔丁基醚、四氢呋喃、乙腈、乙酸乙酯和二异丙基醚中的一种或多种。更佳地,所述的溶剂为正己烷、甲苯、二氯甲烷、甲基叔丁基醚、四氢呋喃、乙酸乙酯和二异丙基醚中的一种或多种。
所述氰基化反应中,所述溶剂的用量可为本领域常规,较佳地,“如式III或式IV所示的化合物”与所述溶剂的摩尔体积比为0.05~0.5mol/L,例如0.15mol/L。
所述氰基化反应中,“如式III或式IV所示的化合物”与三甲基氰硅烷的摩尔比为1:(1.0~3.0),优选为1:(1.2~2.0),例如1:1.5。
所述氰基化反应中,“如式I或式II所示的化合物”与“如式III或式IV所示的化合物”的摩尔比为(0.05~0.10):100,例如0.67:100、1:100或5:100。
所述氰基化反应中,所述的碱为一般无机碱或有机碱,较佳地,所述的碱为K2CO3、Na2CO3、Cs2CO3、K3PO4、KH2PO4、K2HPO4、Na3PO4、NaF、KF、CsF、NaHCO3、PhSO2Na、PhCOOK、CH3COONa、NEt3和DIPEA中的一种或多种,例如K2CO3、Na2CO3、Cs2CO3、K3PO4、K2HPO4、KF、PhCOOK和DIPEA中的一种或多种,又例如K2CO3、Na2CO3、K3PO4、K2HPO4和KF中的一种或多种。
所述氰基化反应中,所述的碱与“如式III或式IV所示的化合物”的摩尔比为(0.01~0.5):1,例如0.1:1。
所述氰基化反应的温度为-40℃~50℃,优选为-20℃~25℃,例如-20℃、-10℃、0℃或25℃。
所述氰基化反应可采用本领域常规的监测方法,例如HPLC或TLC,一般以所述如式III或式IV所示的化合物消失或不再反应时作为反应终点,停止反应。较佳地,所述氰基化反应的时间为0.1~72小时,例如0.5、8、10、14、16、24或48小时。
所述氰基化反应还可包括如下后处理步骤:除去溶剂、分离得所述如式V或式VI所示的化合物,即可。所述分离优选为柱层析或蒸馏。
本发明还提供了如下所示的化合物:
在不违背本领域常识的基础上,上述各优选条件,可任意组合,即得本发明各较佳实例。
本发明所用试剂和原料均市售可得。
本发明的积极进步效果在于:本发明提供了一类结构新颖的化合物,该类化合物可作为氢键有机催化剂用于亚胺类化合物的氰基化反应,尤其是吸电子基衍生的酮亚胺的氰基化反应,在催化氰基化反应时,条件温和、操作简单、催化剂用量低,底物普适性高、反应收率高且对映选择性高。
具体实施方式
下面通过实施例的方式进一步说明本发明,但并不因此将本发明限制在所述的实施例范围之中。下列实施例中未注明具体条件的实验方法,按照常规方法和条件,或按照商品说明书选择。
实施例1催化剂I-1的制备:
(A)将Boc-L-异亮氨酸6.55g,(50.0mmol)和邻苯二胺2.16g,(20.0mmol)溶于二氯甲烷(80.0mL),分批加入二环己基碳二亚胺(DCC)10.3g,(50.0mmol),氩气保护下室温反应24小时,过滤除去DCU,二氯甲烷多次洗涤滤饼,所得滤液减压蒸除溶剂,得到产物A-1为白色固体9.29g,收率87%。m.p.:134-135℃;1H NMR(CDCl3,400MHz):δ8.85(s,2H),7.44(s,2H),7.13-7.11(m,2H),5.34(s,2H),4.14(t,J=7.2Hz,2H),2.04-1.92(m,2H),1.64-1.51(m,2H),1.45(s,18H),1.24-1.13(m,2H),1.01(d,J=7.2Hz,6H),0.93(t,J=7.2Hz,6H);13CNMR(CDCl3,100MHz):δ171.3,155.9,130.0,126.1,125.1,80.1,59.9,37.0,28.3,24.7,15.7,11.3;HRMS(ESI):[M+H]+(C28H47O6N4)+的预测值535.3490;实测值535.3495.
(B)将上一步缩合产物A-1 1.07g(2mmol)溶于二氯甲烷10mL,置于冰水浴中冷却至5℃,缓慢加入三氟乙酸4.5mL,并在此温度下搅拌10-15分钟,自然升至室温继续反应1.5h。缓慢加入饱和碳酸钠溶液中和反应液,二氯甲烷萃取多次,无水硫酸钠干燥,减压蒸除溶剂,真空干燥得到B-1粗品0.68g,无需进一步纯化直接用于下一步反应。
(C)B-1粗品0.68g溶解于25mL干燥的二氯甲烷和10mL干燥的四氢呋喃的混合溶剂,置于冰水浴中冷却至5℃,在氩气保护条件下滴加3,5-双三氟甲基-苯基异硫氰酸酯1.21g,(4.5mmol)的二氯甲烷溶液,在此温度条件下搅拌10分钟,自然升至室温继续反应12h。减压蒸除溶剂,粗产物经柱层析分离提纯(石油醚/乙酸乙酯=8:1→乙酸乙酯)制备目标催化剂I-1为白色固体1.23g,二步收率70%。
m.p.:208-209℃;[α]D 25.0=+3.0(c=0.15,acetone);1H NMR(DMSO-d6,400MHz):δ10.31(s,2H),9.55(s,2H),8.38(d,J=8.0Hz,2H),8.32(s,4H),7.75(s,2H),7.64-7.60(m,2H),7.23-7.19(m,2H),4.95(t,J=7.2Hz,2H),2.02-1.92(m,2H),1.64-1.54(m,2H),1.25-1.37(m,2H),0.96(d,J=6.4Hz,6H),0.87(t,J=7.6Hz,6H);13C NMR(DMSO-d6,100MHz):δ181.1,170.2,142.2,130.6(q,2JCF=32.7Hz),130.4,125.8,125.1,123.6(q,1JCF=271.4Hz),122.1,116.6,62.6,37.8,25.2,15.7,11.6;19F NMR(DMSO-d6,376MHz):δ-61.7(s,12F);HRMS(ESI):[M+H]+(C36H37O2N6F12S2)+预测值877.2222;实测值877.2221.
实施例2
按实施例1催化剂合成方法,使用L-异亮氨酸与3,5-双三氟甲基-苯基异氰酸酯即可制备催化剂I-2。
80%收率,白色固体,m.p.:272-273℃;[α]D 25.0=+16.7(c=0.15,DMSO);1H NMR(DMSO-d6,400MHz):δ9.58(s,2H),9.37(s,2H),8.03(s,4H),7.58-7.57(m,4H),7.21-7.19(m,2H),6.76(d,J=8.4Hz,2H),4.29(t,J=7.6Hz,2H),1.86-1.76(m,2H),1.56-1.46(m,2H),1.14-1.03(m,2H),0.89(d,J=6.8Hz,6H),0.81(t,J=7.2Hz,6H);13C NMR(DMSO-d6,100MHz):δ171.1,155.0,142.6,131.1(q,2JCF=32.4Hz),130.5,127.8,125.7,125.3,123.7(q,1JCF=271.3Hz),117.6,114.1,58.4,37.8,24.8,15.9,11.5;19F NMR(DMSO-d6,376MHz):δ-61.9(s,12F);IR(neat):ν=3221,2966,1638,1538,1467,1382,1276,1169,1123,950,890,846,752,736,700,682cm-1;HRMS(ESI):[M+H]+(C36H37O4N6F12)+预测值845.2679;实测值845.2676.
实施例3
按实施例1催化剂合成方法,使用L-缬氨酸与3,5-双三氟甲基-苯基异氰酸酯即可制备催化剂I-3。
86%收率,白色固体,m.p.:271-272℃;[α]D 25.0=+22.0(c=0.15,DMSO);1H NMR(DMSO-d6,400MHz):δ9.59(s,2H),9.43(s,2H),8.05(s,4H),7.60-7.57(m,2H),7.55(s,2H),7.23-7.21(m,2H),6.76(d,J=8.0Hz,2H),4.36-4.33(m,2H),2.18-2.10(m,2H),0.93(dd,J1=15.6Hz,J2=6.8Hz,12H);13C NMR(DMSO-d6,100MHz):δ171.0,155.0,142.6,131.1(q,2JCF=32.4Hz),130.7,125.7,125.4,123.7(q,1JCF=271.3Hz),117.6,114.1,58.8,31.4,19.7,18.0;19F NMR(DMSO-d6,376MHz):δ-61.9(s,12F);IR(neat):ν=3322,3063,2969,1641,1567,1546,1469,1448,1388,1282,1246,1192,1172,1128,893,738,702,684cm-1;HRMS(ESI):[M+Na]+(C34H32O4N6F12Na)+预测值839.2186;实测值839.2196.
实施例4
按实施例1催化剂合成方法,使用L-叔亮氨酸与3,5-双三氟甲基-苯基异氰酸酯即可制备催化剂I-4。
64%收率,白色固体,m.p.:225-226℃;[α]D 25.0=+44.5(c=0.15,acetone);1HNMR(DMSO-d6,400MHz):δ9.54(s,2H),9.45(s,2H),8.05(s,4H),7.66-7.64(m,2H),7.56(s,2H),7.23-7.20(m,2H),6.83(d,J=8.8Hz,2H),4.34(d,J=8.8Hz,2H),0.99(s,18H);13CNMR(DMSO-d6,100MHz):δ170.1,154.9,142.6,131.2(q,2JCF=32.3Hz),130.1,125.6,125.3,123.7(q,1JCF=271.4Hz),117.5,114.1,61.2,34.9,26.8;19F NMR(DMSO-d6,376MHz):δ-62.0(s,12F);IR(neat):ν=3303,2968,1659,1538,1473,1444,1386,1279,1232,1183,1134,1061,883,751,736,702,682cm-1;HRMS(ESI):[M+H]+(C36H37O4N6F12)+预测值845.2679;实测值845.2682.
实施例5
按实施例1催化剂合成方法,使用L-苯丙氨酸与3,5-双三氟甲基-苯基异氰酸酯即可制备催化剂I-5。
95%收率,白色固体,m.p.:269-270℃;[α]D 25.0=+32.4(c=0.15,DMSO);1H NMR(DMSO-d6,400MHz):δ9.65(s,2H),9.44(s,2H),7.97(s,4H),7.55-7.53(m,2H),7.51(s,2H),7.23-7.13(m,12H),6.73(d,J=7.6Hz,2H),4.75-4.70(m,2H),3.22-3.17(m,2H),3.05-2.99(m,2H);13C NMR(DMSO-d6,100MHz):δ170.8,154.7,142.5,137.5,131.0(q,2JCF=32.4Hz),130.8,129.8,128.5,126.8,125.7,125.2,123.7(q,1JCF=271.3Hz),117.5,114.1,55.2,38.5;19F NMR(DMSO-d6,376MHz):δ-61.9(s,12F);IR(neat):ν=3251,1645,1548,1472,1386,1279,1185,1129,885,700,682cm-1;HRMS(ESI):[M+H]+(C42H33O4N6F12)+预测值913.2366;实测值913.2368.
实施例6
按实施例1催化剂合成方法,使用L-苯甘氨酸与3,5-双三氟甲基-苯基异氰酸酯即可制备催化剂I-6。
91%收率,白色固体,m.p.:259-260℃;[α]D 25.0=+57.1(c=0.15,DMSO);1H NMR(DMSO-d6,400MHz):δ9.85(s,2H),9.60(s,2H),8.03(s,4H),7.54-7.52(m,6H),7.48-7.39(m,8H),7.32(t,J=7.2Hz,2H),7.19-7.17(m,2H),5.64(d,J=7.2Hz,2H);13C NMR(DMSO-d6,100MHz):δ169.6,154.4,142.5,139.2,131.2(q,2JCF=32.4Hz),130.5,129.0,128.3,127.3,125.9,125.2,123.7(q,1JCF=271.3Hz),117.6,114.3,110.0,57.7;19F NMR(DMSO-d6,376MHz):δ-61.9(s,12F);IR(neat):ν=3249,3063,1663,1643,1547,1469,1447,1385,1359,1318,1281,1180,1129,894,747,693cm-1;HRMS(ESI):[M+H]+(C40H29O4N6F12)+预测值885.2053;实测值885.2054.
实施例7
按实施例1催化剂合成方法,使用L-缬氨酸与3,5-双三氟甲基-苯基异硫氰酸酯即可制备催化剂I-7。
85%收率,白色固体,m.p.:195-196℃;[α]D 25.0=+5.7(c=0.15,acetone);1H NMR(DMSO-d6,400MHz):δ10.38(s,2H),9.59(s,2H),8.40-8.38(m,6H),7.76(s,2H),7.67-7.66(m,2H),7.26-7.23(m,2H),5.01(t,J=6.8Hz,2H),2.34-2.25(m,2H),1.04-1.02(m,12H);13C NMR(DMSO-d6,100MHz):δ181.3,170.2,142.2,130.6(q,2JCF=32.7Hz),130.5,125.8,125.2,123.6(q,1JCF=271.4Hz),122.1,116.6,63.1,31.5,19.5,18.7;19F NMR(DMSO-d6,376MHz):δ-61.8(s,12F);IR(neat):ν=3255,3051,2967,2928,1672,1626,1519,1459,1382,1329,1276,1227,1177,1133,1108,989,965,883,848,752,725,697,681cm-1;HRMS(ESI):[M+Na]+(C34H32O2N6F12NaS2)+预测值871.1729;实测值871.1738.
实施例8
按实施例1催化剂合成方法,使用L-异亮氨酸与4-硝基-苯基异硫氰酸酯即可制备催化剂I-8。
86%收率,淡黄色固体,m.p.:201-202℃;[α]D 25.0=+38.2(c=0.15,acetone);1HNMR(acetone-d6,400MHz):δ9.64(s,2H),9.34(s,2H),8.14-8.12(m,4H),7.95-7.93(m,6H),7.73-7.70(m,2H),7.25-7.22(m,2H),5.16(t,J=6.8Hz,2H),2.18-2.09(m,2H),1.77-1.67(m,2H),1.37-1.26(m,2H),1.08(d,J=6.8Hz,6H),0.93(t,J=7.2Hz,6H);13C NMR(acetone-d6,100MHz):δ181.3,171.0,146.3,143.4,130.9,126.3,125.3,124.6,121.5,63.2,38.1,25.7,15.5,11.4;IR(neat):ν=3258,2962,2932,2877,1677,1597,1514,1456,1331,1297,1265,1227,1180,1111,847,752,737,703cm-1;HRMS(ESI):[M+H]+(C32H39O6N8S2)+预测值695.2428;实测值695.2435.
实施例9催化剂II-1的制备:
(A)将Boc-L-异亮氨酸2.31g(10.0mmol)溶于干燥的二氯甲烷(20.0mL),置于冰水浴中搅拌20分钟,加入HBTU 3.79g(10.0mmol)搅拌10分钟,在氩气保护条件下加入1,8-二氨基蒽0.62g(3.0mmol),加入二异丙基乙胺1.55g(12.0mmol)加料毕在冰水浴中继续搅拌15分钟,体系升至室温继续搅拌48小时,TLC跟踪。反应完全后过滤,滤液通过减压蒸除溶剂,粗产物经柱层析通过(石油醚:乙酸乙酯=10:1→3:1)梯度洗脱提纯得目标产物C-11.71g,收率90.0%。m.p.:176-177℃;[α]D 25.0=+1.8(c=0.20,CHCl3);1H NMR(DMSO-d6,400MHz):δ9.76(s,2H),8.91(s,1H),8.64(s,1H),7.93(d,J=8.8Hz,2H),7.88(d,J=6.8Hz,2H),7.54(t,J=7.6Hz,2H),6.99(d,J=8.4Hz,2H),4.30(t,J=8.0Hz,2H),2.02-1.92(m,2H),1.65-1.54(m,2H),1.40(s,18H),1.34-1.24(m,2H),1.04(d,J=6.4Hz,6H),0.91(t,J=7.2Hz,6H);13C NMR(CDCl3,100MHz):δ170.9,157.8,131.7,131.5,129.2,125.9,124.4,123.8,116.3,108.0,81.8,63.4,36.9,28.1,26.9,24.8,16.0,11.7;IR(neat):ν=3432,3284,3054,2967,2933,2877,1663,1531,1470,1392,1366,1259,1229,1171,1093,1045,1021,867,781,734,669cm-1;HRMS(ESI):[M+Na]+(C36H50O6N4Na)+预测值657.3623;实测值657.3627.
(B)取缩合产物C-1 318mg(0.5mmol)溶于二氯甲烷(3.0mL),置于冰水浴中搅拌15分钟,缓慢加入三氟乙酸(1.5mL)并在此温度下搅拌10-15分钟,然后撤出冰水浴,室温下反应1.5h,将反应体系再次置于冰水浴中,缓慢加入饱和碳酸钠溶液中和反应液,二氯甲烷萃取多次,无水硫酸钠干燥,减压蒸除溶剂,真空干燥得化合物D-1 220mg,无需进一步纯化直接用于下一步反应。
(C)D-1 220mg(按0.5mmol计)用10mL干燥的二氯甲烷和6mL干燥的四氢呋喃溶解粗产物,置于冰水浴中,在氩气保护条件下加入3,5-双三氟甲基-苯基异硫氰酸酯406mg(1.5mmol)的干燥二氯甲烷(2.0mL)溶液,在此温度条件下搅拌10分钟,然后撤出冰水浴,室温下反应12h,减压蒸除溶剂,粗产物经柱层析分离提纯(石油醚/乙酸乙酯=8:1→乙酸乙酯)得催化剂II-1 347mg,二步收率:71.2%。m.p.:223-224℃;[α]D 25.0=+235.5(c=0.15,acetone);1H NMR(DMSO-d6,400MHz):δ10.41(s,2H),10.06(s,2H),8.93(s,1H),8.68(s,1H),8.42(d,J=7.6Hz,2H),8.38(s,4H),7.98(d,J=8.4Hz,2H),7.82(d,J=7.2Hz,2H),7.76(s,2H),7.56(t,J=8.0Hz,2H),5.24(t,J=7.2Hz,2H),2.25-2.15(m,2H),1.75-1.65(m,2H),1.37-1.23(m,2H),1.13(d,J=6.8Hz,6H),0.93(t,J=7.2Hz,6H);13C NMR(DMSO-d6,100MHz):δ180.9,170.9,142.3,133.6,132.1,130.6(q,2JCF=32.7Hz),127.5,126.2,126.0,125.8,123.7(q,1JCF=271.4Hz),122.0,120.8,116.6,116.4,62.6,38.1,25.2,16.1,11.9;19F NMR(DMSO-d6,376MHz):δ-61.7(s,12F);IR(neat):ν=3321,3061,2967,2933,2880,1666,1627,1531,1470,1380,1329,1276,1222,1176,1132,1108,956,878,681cm-1;HRMS(ESI):[M+Na]+(C44H40O2N6F12NaS2)+预测值999.2355;实测值999.2363.
实施例10
按实施例9催化剂合成方法,使用L-异亮氨酸与3,5-双三氟甲基-苯基异氰酸酯即可制备催化剂II-2。
90%收率,淡黄色固体,m.p.:263-264℃;[α]D 25.0=+225.1(c=0.15,DMSO);1HNMR(DMSO-d6,400MHz):δ10.08(s,2H),9.47(s,2H),9.03(s,1H),8.62(s,1H),7.98(s,4H),7.94(d,J=8.4Hz,2H),7.67(d,J=7.2Hz,2H),7.54-7.49(m,4H),6.85(d,J=8.4Hz,2H),4.65(t,J=7.2Hz,2H),1.97-1.87(m,2H),1.64-1.52(m,2H),1.25-1.13(m,2H),0.99(d,J=6.4Hz,6H),0.81(t,J=7.2Hz,6H);13C NMR(DMSO-d6,100MHz):δ171.9,155.2,142.6,133.7,132.1,131.1(q,2JCF=32.4Hz),127.3,126.7,125.9,123.7(q,1JCF=271.4Hz),121.4,117.7,116.9,114.1,58.4,38.2,24.6,16.1,11.5;19F NMR(DMSO-d6,376MHz):δ-61.9(s,12F);IR(neat):ν=3269,1634,1531,1467,1382,1278,1166,1123,889,864,769,731,699,683cm-1;HRMS(ESI):[M+H]+(C44H41O4N6F12)+预测值945.2992;实测值945.3003.
实施例11
按实施例9催化剂合成方法,使用L-异亮氨酸与4-甲氧基-苯基异硫氰酸酯即可制备催化剂II-3。
77%收率,黄色固体,m.p.:141-142℃;[α]D 25.0=+270.7(c=0.15,acetone);1HNMR(DMSO-d6,400MHz):δ10.02(s,2H),9.70(s,2H),8.94(s,1H),8.65(s,1H),7.96-7.72(m,6H),7.56-7.54(m,2H),7.40(d,J=7.2Hz,4H),6.91(d,J=7.2Hz,4H),5.29(s,2H),3.74(s,6H),2.21(br,2H),1.71(br,2H),1.30(br,2H),1.14-0.97(m,12H);13C NMR(DMSO-d6,100MHz):δ181.3,171.4,156.7,133.7,132.5,132.1,127.4,126.1,126.0,125.6,120.6,116.3,114.2,62.5,55.6,38.2,25.2,16.2,12.0;IR(neat):ν=3302,2963,2932,2875,1665,1609,1510,1466,1329,1298,1244,1168,1033,829,736cm-1;HRMS(ESI):[M+Na]+(C42H48O4N6NaS2)+预测值787.3071;实测值787.3080.
实施例12
按实施例9催化剂合成方法,使用L-异亮氨酸与苯基异硫氰酸酯即可制备催化剂II-4。
91%收率,黄色固体,m.p.:160-161℃;[α]D 25.0=+289.7(c=0.15,acetone);1HNMR(DMSO-d6,400MHz):δ10.03(s,2H),9.89(s,2H),8.95(s,1H),8.65(s,1H),7.96(d,J=8.4Hz,4H),7.84(d,J=7.2Hz,2H),7.61(d,J=8.0Hz,4H),7.55(t,J=8.0Hz,2H),7.33(t,J=8.0Hz,4H),7.10(t,J=7.2Hz,2H),5.30(s,2H),2.29-2.16(m,2H),1.79-1.65(m,2H),1.35-1.27(m,2H),1.15(d,J=6.0Hz,6H),0.96(t,J=6.4Hz,6H);13C NMR(DMSO-d6,100MHz):δ180.9,171.3,139.9,133.7,132.1,128.9,127.5,126.1,126.0,125.6,124.4,122.9,120.7,116.4,62.4,38.2,25.2,16.2,12.0;IR(neat):ν=3292,2962,2930,2874,1663,1598,1516,1467,1450,1347,1314,1260,1203,1155,872,779,738,698cm-1;HRMS(ESI):[M+H]+(C40H45O2N6S2)+预测值705.3040;实测值705.3050.
实施例13
按实施例9催化剂合成方法,使用L-异亮氨酸与4-硝基-苯基异硫氰酸酯即可制备催化剂II-5。
88%收率,黄色固体,m.p.:170-171℃;[α]D 25.0=+281.6(c=0.15,acetone);1HNMR(DMSO-d6,400MHz):δ10.47(s,2H),10.07(s,2H),8.92(s,1H),8.68(s,1H),8.44(d,J=8.0Hz,2H),8.20(d,J=9.2Hz,4H),8.03(d,J=9.2Hz,4H),7.98(d,J=8.8Hz,2H),7.79(d,J=7.2Hz,2H),7.56(t,J=8.0Hz,2H),5.26(t,J=6.0Hz,2H),2.26-2.16(m,2H),1.77-1.68(m,2H),1.36-1.27(m,2H),1.13(d,J=6.8Hz,6H),0.94(t,J=7.2Hz,6H);13C NMR(DMSO-d6,100MHz):δ180.3,170.9,146.8,142.3,133.7,132.1,127.5,126.4,126.0,125.8,124.9,121.0,120.7,116.6,62.4,38.1,25.3,16.1,12.0;IR(neat):ν=3299,2961,1660,1595,1511,1329,1256,1174,1109,961,849,705cm-1;HRMS(ESI):[M+Na]+(C40H42O6N8NaS2)+预测值817.2561;实测值817.2569.
实施例14
按实施例9催化剂合成方法,使用L-缬氨酸与3,5-双三氟甲基-苯基异硫氰酸酯即可制备催化剂II-6。
92%收率,淡黄色固体,m.p.:223-224℃;[α]D 25.0=+191.5(c=0.15,acetone);1HNMR(acetone-d6,400MHz):δ9.75(s,2H),9.49(s,2H),8.95(s,1H),8.50(s,1H),8.29(d,J=6.4Hz,2H),8.04(s,4H),7.89-7.83(m,4H),7.71(s,2H),7.44(t,J=8.0Hz,2H),5.53(s,2H),2.68-2.63(m,2H),1.21(d,J=6.4Hz,12H);13C NMR(acetone-d6,100MHz):δ182.0,171.8,141.5,132.8,132.1,130.9(q,2JCF=33.0Hz),127.8,126.8,126.4,125.2,123.7,123.3(q,1JCF=270.7Hz),121.6,117.3,115.0,63.4,31.8,18.8,17.9;19F NMR(acetone-d6,376MHz):δ-63.4(s,12F);IR(neat):ν=3331,3050,1664,1626,1526,1488,1468,1378,1323,1274,1224,1174,1127,961,877,847,777,698,681cm-1;HRMS(ESI):[M+H]+(C42H37O2N6F12S2)+预测值949.2222;实测值949.2224.
实施例15
按实施例9催化剂合成方法,使用L-叔亮氨酸与3,5-双三氟甲基-苯基异硫氰酸酯即可制备催化剂II-7。
79%收率,淡黄色固体,m.p.:215-216℃;[α]D 25.0=+294.7(c=0.15,acetone);1HNMR(acetone-d6,400MHz):δ9.73(s,2H),9.30(s,2H),9.07(s,1H),8.60(s,1H),8.31(s,4H),8.01(d,J=7.2Hz,4H),7.92(d,J=8.4Hz,2H),7.71(s,2H),7.50(t,J=7.6Hz,2H),5.47(d,J=8.8Hz,2H),1.29(s,18H);13C NMR(acetone-d6,100MHz):δ181.6,170.0,141.8,132.8,132.1,131.0(q,2JCF=33.0Hz),127.7,125.9,125.4,125.3,123.4(q,1JCF=270.7Hz),122.8,119.8,116.9,114.2,66.0,35.4,26.6;19F NMR(acetone-d6,376MHz):δ-63.5(s,12F);IR(neat):ν=3332,1661,1520,1379,1276,1169,1131,959,875,681cm-1;HRMS(ESI):[M+H]+(C44H41O2N6F12S2)+预测值977.2535;实测值977.2539.
实施例16
按实施例9催化剂合成方法,使用L-苯丙氨酸与3,5-双三氟甲基-苯基异硫氰酸酯即可制备催化剂II-8。
77%收率,黄色固体,m.p.:176-177℃;[α]D 25.0=+122.1(c=0.15,acetone);1HNMR(DMSO-d6,400MHz):δ10.55(s,2H),10.43(s,2H),8.99(s,1H),8.69(s,1H),8.28(s,4H),8.19(d,J=7.2Hz,2H),8.00(d,J=8.4Hz,2H),7.73-7.72(m,4H),7.57(t,J=8.0Hz,2H),7.24-7.12(m,10H),5.60-5.55(m,2H),3.66-3.62(m,2H),3.38-3.36(m,2H);13C NMR(acetone-d6,100MHz):δ180.4,170.2,141.5,136.6,133.0,132.2,131.0(q,2JCF=33.0Hz),129.7,128.2,127.5,126.6,126.3,125.8,125.3,123.4(q,1JCF=270.7Hz),122.5,120.6,116.9,115.4,59.3,37.9;19F NMR(acetone-d6,376MHz):δ-63.5(s,12F);IR(neat):ν=3255,1643,1515,1470,1381,1321,1277,1183,1130,965,886,868,731,698,681cm-1;HRMS(ESI):[M+H]+(C50H37O2N6F12S2)+预测值1045.2222;实测值1045.2225.
实施例17
按实施例9催化剂合成方法,使用L-苯甘氨酸与3,5-双三氟甲基-苯基异硫氰酸酯即可制备催化剂II-9。
78%收率,淡黄色固体,m.p.:235-236℃;[α]D 25.0=+52.8(c=0.15,acetone);1HNMR(DMSO-d6,400MHz):δ10.65-10.64(m,4H),9.02-8.98(m,3H),8.67(s,1H),8.40(s,4H),7.96(d,J=8.4Hz,2H),7.75-7.72(m,6H),7.58(d,J=7.2Hz,2H),7.51(t,J=8.0Hz,2H),7.44(t,J=7.6Hz,4H),7.33(t,J=7.6Hz,2H),6.50(d,J=6.8Hz,2H);13C NMR(DMSO-d6,100MHz):δ180.1,169.9,142.2,138.7,133.4,132.1,130.6(q,2JCF=32.7Hz),129.0,128.3,127.8,127.6,126.2,126.0,125.9,123.6(q,1JCF=271.3Hz),122.0,120.9,116.7,116.3,61.4;19F NMR(DMSO-d6,376MHz):δ-61.7(s,12F);IR(neat):ν=3409,3312,3048,1739,1674,1624,1537,1485,1381,1324,1276,1215,1170,1131,979,920,881,778,732,707,680cm-1;HRMS(ESI):[M+H]+(C48H33O2N6F12S2)+预测值1017.1909;实测值1017.1910.
实施例18
按实施例9催化剂合成方法,使用L-氨基丁酸与3,5-双三氟甲基-苯基异硫氰酸酯即可制备催化剂II-10。
84%收率,淡黄色固体,m.p.:224-225℃;[α]D 25.0=+119.3(c=0.15,acetone);1HNMR(DMSO-d6,400MHz):δ10.46(s,2H),10.38(s,2H),8.82(s,1H),8.69(s,1H),8.43(d,J=6.8Hz,2H),8.35(s,4H),8.01(d,J=8.8Hz,2H),7.74(s,2H),7.69(d,J=6.8Hz,2H),7.56(t,J=8.0Hz,2H),5.31-5.28(m,2H),2.29-2.20(m,2H),2.13-2.03(m,2H),1.06(t,J=6.8Hz,6H);13C NMR(DMSO-d6,100MHz):δ180.4,171.3,142.3,133.7,132.2,130.6(q,2JCF=32.7Hz),127.4,127.0,126.2,125.9,123.6(q,1JCF=271.3Hz),122.0,117.1,116.6,58.7,26.2,10.0;19F NMR(DMSO-d6,376MHz):δ-61.7(s,12F);IR(neat):ν=3258,3055,1649,1541,1501,1458,1385,1332,1273,1171,1130,1108,867,735,700,679cm-1;HRMS(ESI):[M+Na]+(C40H32O2N6F12NaS2)+预测值943.1729;实测值943.1719.
实施例19
按实施例9催化剂合成方法,使用L-氨基丁酸与4-硝基-苯基异硫氰酸酯即可制备催化剂II-11。
53%收率,黄色固体,m.p.:181-182℃;[α]D 25.0=+180.9(c=0.15,acetone);1HNMR(DMSO-d6,400MHz):δ10.52(s,2H),10.39(s,2H),8.82(s,1H),8.69(s,1H),8.46(d,J=7.2Hz,2H),8.19(d,J=9.2Hz,4H),8.02-7.99(m,6H),7.67(d,J=6.8Hz,2H),7.56(t,J=8.0Hz,2H),5.32-5.28(m,2H),2.30-2.19(m,2H),2.13-2.02(m,2H),1.06(t,J=7.2Hz,6H);13C NMR(DMSO-d6,100MHz):δ179.9,171.3,146.8,142.3,133.7,132.2,127.4,127.1,126.3,125.9,124.9,122.1,120.7,117.1,58.6,26.2,10.1;IR(neat):ν=3297,1657,1511,1328,1299,1256,1110,849,703cm-1;HRMS(ESI):[M+Na]+(C36H34O6N8NaS2)+预测值761.1935;实测值761.1930.
实施例20
按实施例9催化剂合成方法,使用L-缬氨酸与4-硝基-苯基异硫氰酸酯即可制备催化剂II-12。
96%收率,黄色固体,m.p.:182-183℃;[α]D 25.1=+270.5(c=0.15,acetone);1HNMR(DMSO-d6,400MHz):δ10.53(s,2H),10.22(s,2H),8.88(s,1H),8.68(s,1H),8.40(d,J=8.0Hz,2H),8.21(d,J=9.2Hz,4H),8.04(d,J=9.2Hz,4H),7.99(d,J=8.4Hz,2H),7.75(d,J=7.2Hz,2H),7.56(t,J=8.0Hz,2H),5.32-5.29(m,2H),2.61-2.53(m,2H),1.14-1.10(m,12H);13C NMR(DMSO-d6,100MHz):δ180.5,170.9,146.8,142.4,133.8,132.2,127.5,126.7,126.0,125.9,124.9,121.5,120.7,116.8,62.5,31.9,19.8,18.6;IR(neat):ν=3280,2961,1660,1595,1510,1328,1255,1174,1109,876,849,778,703cm-1;HRMS(ESI):[M+H]+(C38H39O6N8S2)+预测值767.2428;实测值767.2430.
实施例21
按实施例9催化剂合成方法,使用L-异亮氨酸与4-硝基-3-三氟甲基-苯基异硫氰酸酯即可制备催化剂II-13。
58%收率,黄色固体,m.p.:237-238℃;[α]D 25.0=+202.1(c=0.15,DMSO);1H NMR(DMSO-d6,400MHz):δ10.62(s,2H),10.07(s,2H),8.90(s,1H),8.63(s,3H),8.53(d,J=8.0Hz,2H),8,14(d,J=9.2Hz,2H),8.03(dd,J1=9.2Hz,J2=2.0Hz,2H),7.94(d,J=8.8Hz,2H),7.77(d,J=7.2Hz,2H),7.52(t,J=8.0Hz,2H),5.22(t,J=6.8Hz,2H),2.22-2.13(m,2H),1.74-1.61(m,2H),1.34-1.23(m,2H),1.10(d,J=6.4Hz,6H),0.90(t,J=7.2Hz,6H);13C NMR(DMSO-d6,100MHz):δ180.4,170.7,145.2,141.4,133.6,132.1,127.6,127.5,126.3,126.0,125.8,124.2,122.8(q,2JCF=33.0Hz),122.5(q,1JCF=271.5Hz),120.9,119.2,119.1,116.5,62.6,38.1,25.2,16.1,11.9;19F NMR(DMSO-d6,376MHz):δ-59.1(s,6F);IR(neat):ν=3287,2959,1659,1530,1483,1426,1345,1266,1224,1178,1144,1043,982,941,888,876,848,748,660cm-1;HRMS(ESI):[M+H]+(C42H41O6N8F6S2)+预测值931.2489;实测值931.2496.
实施例22手性氰基化合物2a的制备-催化剂的影响
将化合物苯基-三氟甲基-Boc亚胺底物1a(0.15mmol),K2CO3(0.015mmol),多氢键催化剂(0.0075mmol,具体参见表1)依次加入反应瓶中,然后加入甲苯(1.0mL),将反应体系温度降至0℃,15分钟后加入TMSCN(0.225mmol),继续在此温度下反应,TLC跟踪。当反应完全后,减压蒸除溶剂,粗产物经柱层析通过(石油醚/乙酸乙酯=20:1→7:1)梯度洗脱提纯得手性氰基化产物2a,白色固体;[α]D 25.0=+47.2(c=1.00,CHCl3);1H NMR(CDCl3,400MHz):δ7.67-7.62(m,2H),7.49-7.45(m,3H),6.36(br,1H),1.31(s,9H);13C NMR(CDCl3,100MHz):δ152.8,130.8,130.3,128.9,126.6,121.7(q,1JCF=284.7Hz),113.9,83.3,62.5(q,2JCF=31.0Hz),27.7;19F NMR(CDCl3,376MHz):δ-75.8(s,3F).
反应条件、收率及对映选择性结果如表1所示,其中,ee值通过HPLC确定(Chiralpak AD-H column,hexane/i-propanol=95/5,流速0.6mL/min;tmajor=17.5min,tminor=11.7min,λ=254nm)。
表1
实施例23手性氰基化合物2a的制备-碱的影响
将化合物苯基-三氟甲基-Boc亚胺底物1a(0.15mmol),碱(0.015mmol),多氢键催化剂II-2(0.0015mmol)依次加入反应瓶中,然后加入甲苯(1.0mL),在室温中加入TMSCN(0.225mmol),继续在室温下反应,TLC跟踪。当反应完全后,减压蒸除溶剂,粗产物经柱层析通过(石油醚/乙酸乙酯=20:1→7:1)梯度洗脱提纯得手性氰基化产物2a。
反应条件、收率及对映选择性结果如表2所示,其中,ee值通过HPLC确定(Chiralpak AD-H column,hexane/i-propanol=95/5,流速0.6mL/min;tmajor=17.5min,tminor=11.7min,λ=254nm)。
表2
实施例24手性氰基化合物2a的制备-溶剂的影响
将化合物苯基-三氟甲基-Boc亚胺底物1a(0.15mmol),K2CO3(0.015mmol),多氢键催化剂II-2(0.0015mmol)依次加入反应瓶中,然后加入溶剂(1.0mL),将反应体系温度降至0℃,15分钟后加入TMSCN(0.225mmol),继续在此温度下反应,TLC跟踪。当反应完全后,减压蒸除溶剂,粗产物经柱层析通过(石油醚/乙酸乙酯=20:1→7:1)梯度洗脱提纯得手性氰基化产物2a。
反应条件、收率及对映选择性结果如表3所示,其中,ee值通过HPLC确定(Chiralpak AD-H column,hexane/i-propanol=95/5,流速0.6mL/min;tmajor=17.5min,tminor=11.7min,λ=254nm)。
表3
实施例25手性氰基化合物2a的制备-温度的影响
将化合物苯基-三氟甲基-Boc亚胺底物1a(0.15mmol),K2CO3(0.015mmol),多氢键催化剂II-2(0.0015mmol)依次加入反应瓶中,然后加入甲基叔丁醚(1.0mL),在一定温度下加入TMSCN(0.225mmol),继续在此温度下反应,TLC跟踪。当反应完全后,减压蒸除溶剂,粗产物经柱层析通过(石油醚/乙酸乙酯=20:1→7:1)梯度洗脱提纯得手性氰基化产物2a。
反应条件、收率及对映选择性结果如表4所示,其中,ee值通过HPLC确定(Chiralpak AD-H column,hexane/i-propanol=95/5,流速0.6mL/min;tmajor=17.5min,tminor=11.7min,λ=254nm)。
表4
实施例26
将化合物苯基-三氟甲基-Boc亚胺底物1a(0.15mmol),K2CO3(0.015mmol),多氢键催化剂II-2(0.001mmol)依次加入反应瓶中,然后加入甲基叔丁醚(1.0mL),将反应体系温度降至-10℃,15分钟后加入TMSCN(0.225mmol),继续在此温度下反应,TLC跟踪。当反应完全后(8至24小时),减压蒸除溶剂,粗产物经柱层析通过(石油醚/乙酸乙酯=20:1→7:1)梯度洗脱提纯得手性氰基化产物2a。95%收率,白色固体;ee值:99%.
实施例27:
94%收率,白色固体;[α]D 25.0=+41.0(c=1.00,CHCl3);ee值:99%,ee值通过HPLC确定(Chiralpak AD-H column,hexane/i-propanol=95/5,流速0.8mL/min;tmajor=8.9min,tminor=7.8min,λ=254nm);1H NMR(CDCl3,400MHz):δ7.52(d,J=8.4Hz,2H),7.27(d,J=8.0Hz,2H),6.31(br,1H),3.00(s,3H),1.33(s,9H);13C NMR(CDCl3,100MHz):δ152.9,140.6,129.6,127.7,126.5,121.8(q,1JCF=284.6Hz),114.0,83.2,62.2(q,2JCF=31.1Hz),27.8,21.1;19F NMR(CDCl3,376MHz):δ-75.9(s,3F).
实施例28:
97%收率,无色油状物;[α]D 25.0=+37.5(c=1.00,CHCl3);ee值:99%,ee值通过HPLC确定(Chiralpak AD-H column,hexane/i-propanol=98/2,流速1.0mL/min;tmajor=13.1min,tminor=9.5min,λ=254nm);1H NMR(CDCl3,400MHz):δ7.67-7.63(m,2H),7.20-7.15(m,2H),6.25(br,1H),1.34(s,9H);13C NMR(CDCl3,100MHz):δ163.7(d,1JCF=249.8Hz),153.1,128.8(d,3JCF=8.6Hz),126.9,121.5(q,1JCF=278.8Hz),116.0(d,2JCF=22.1Hz),113.8,83.6,62.0(q,2JCF=31.2Hz),27.7;19F NMR(CDCl3,376MHz):δ-75.9(s,3F),-110.4(s,1F).
实施例29:
92%收率,白色固体;[α]D 25.0=+45.1(c=1.00,CHCl3);ee值:99%,ee值通过HPLC确定(Chiralpak OJ column,hexane/i-propanol=98/2,流速0.6mL/min;tmajor=15.8min,tminor=22.9min,λ=254nm);1H NMR(CDCl3,400MHz):δ7.60-7.54(m,2H),7.45(d,J=7.6Hz,2H),6.21(br,1H),1.27(s,9H);13C NMR(CDCl3,100MHz):δ152.7,132.2,129.9,128.3,124.9,121.4(q,1JCF=284.9Hz),113.5,83.7,62.1(q,2JCF=31.0Hz),27.8;19F NMR(CDCl3,376MHz):δ-75.8(s,3F).
实施例30:
96%收率,白色固体;[α]D 25.0=+44.2(c=1.00,CHCl3);ee值:98%,ee值通过HPLC确定(Chiralpak AS-H column,hexane/i-propanol=95/5,流速0.6mL/min;tmajor=20.3min,tminor=18.7min,λ=254nm);1H NMR(CDCl3,400MHz):δ8.52(s,1H),8.39(d,J=7.6Hz,1H),8.07(d,J=7.2Hz,1H),7.80-7.72(m,1H),6.34(br,1H),1.36(s,9H);13C NMR(CDCl3,100MHz):δ152.9,148.5,133.3,132.8,130.3,125.4,121.8,121.3(q,1JCF=285.1Hz),113.2,84.1,62.0(q,2JCF=31.1Hz),27.7;19F NMR(CDCl3,376MHz):δ-75.4(s,3F).
实施例31:
98%收率,白色固体,m.p.:93-94℃;[α]D 25.0=+45.8(c=1.00,CHCl3);ee值:>99%,ee值通过HPLC确定(Chiralpak PC-II column,hexane/i-propanol=98/2,流速0.8mL/min;tmajor=7.5min,tminor=8.8min,λ=254nm);1H NMR(CDCl3,400MHz):δ7.38(t,J=8.0Hz,1H),7.24(d,J=8.0Hz,1H),7.17(s,1H),7.01(dd,J1=8.0Hz,J2=2.0Hz,1H),6.15(br,1H),3.84(s,3H),1.34(s,9H);13C NMR(CDCl3,100MHz):δ159.9,153.2,132.4,129.9,121.7(q,1JCF=284.7Hz),118.9,115.7,114.0,112.6,83.3,62.4(q,2JCF=31.0Hz),55.4,27.7;19F NMR(CDCl3,376MHz):δ-75.5(s,3F);IR(neat):ν=3246,3147,2980,2840,1716,1606,1589,1494,1395,1370,1295,1252,1189,1050,1004,965,872,833,780,750,731,695cm-1;HRMS(ESI):[M-H]-(C15H16O3N2F3)-预测值329.1119;实测值329.1117.
实施例32:
97%收率,无色油状物;[α]D 25.0=+35.6(c=1.00,CHCl3);ee值:98%,ee值通过HPLC确定(Chiralpak AD-H column,hexane/i-propanol=95/5,流速1.0mL/min;tmajor=19.2min,tminor=8.7min,λ=254nm);1H NMR(CDCl3,400MHz):δ7.84-7.81(m,1H),7.49-7.37(m,3H),5.78(br,1H),1.37(s,9H);13C NMR(CDCl3,100MHz):δ152.9,132.7,132.6,131.4,130.8,127.3,122.0(q,1JCF=286.4Hz),113.6,83.1,62.7(q,2JCF=30.5Hz),27.7;19F NMR(CDCl3,376MHz):δ-73.9(s,3F).
实施例33:
97%收率,白色固体,m.p.:78-79℃;[α]D 25.0=+26.0(c=1.00,CHCl3);ee值:99%,ee值通过HPLC确定(Chiralpak PC-II column,hexane/i-propanol=98/2,流速0.8mL/min;tmajor=8.0min,tminor=9.9min,λ=254nm);1H NMR(CDCl3,400MHz):δ7.85(d,J=8.0Hz,1H),7.70(d,J=7.6Hz,1H),7.44(t,J=7.6Hz,1H),7.32(t,J=8.0Hz,1H),5.69(br,1H),1.39(s,9H);13C NMR(CDCl3,100MHz):δ152.7,136.4,131.5,131.2,127.8,122.0(q,1JCF=283.5Hz),120.6,113.8,83.2,63.6,27.8;19F NMR(CDCl3,376MHz):δ-73.4(s,3F);IR(neat):ν=3242,3144,2979,1719,1473,1428,1370,1247,1193,1157,1062,1028,993,959,944,859,761,734,689,703cm-1;HRMS(ESI):[M-H]-(C14H13O2N2BrF3)-预测值377.0118;实测值377.0119.
实施例34:
91%收率,白色固体,m.p.:135-136℃;[α]D 25.1=+58.3(c=1.00,CHCl3);ee值:99%,ee值通过HPLC确定(Chiralpak AD-H column,hexane/i-propanol=98/2,流速0.6mL/min;tmajor=32.2min,tminor=24.1min,λ=254nm);1H NMR(CDCl3,400MHz):δ8.12(s,1H),7.87-7.80(m,3H),7.60(d,J=8.4Hz,1H),7.52-7.47(m,2H),6.30(br,1H),1.21(s,9H);13C NMR(CDCl3,100MHz):δ152.9,133.8,132.7,129.0,128.5,127.9,127.7,127.6,127.4,127.1,122.6,121.9(q,1JCF=280.9Hz),114.0,83.3,62.7(q,2JCF=30.5Hz),27.8;19F NMR(CDCl3,376MHz):δ-75.4(s,3F);IR(neat):ν=3245,3145,2962,2932,2874,1716,1510,1370,1248,1199,1183,1156,1126,1072,969,816,778,749,727cm-1;HRMS(ESI):[M-H]-(C18H16O2N2F3)-预测值349.1169;实测值349.1168.
实施例35:
96%收率,白色固体,m.p.:111-112℃;[α]D 25.0=+16.0(c=1.00,CHCl3);ee值:99%,ee值通过HPLC确定(Chiralpak PC-II column,hexane/i-propanol=98/2,流速0.6mL/min;tmajor=10.3min,tminor=13.0min,λ=254nm);1H NMR(CDCl3,400MHz):δ8.53(d,J=8.4Hz,1H),8.01-7.91(m,3H),7.61-7.51(m,3H),6.01(br,1H),1.17(s,9H);13C NMR(CDCl3,100MHz):δ153.3,134.6,131.9,130.0,129.5,128.5,127.2,126.2,125.5,124.5,124.0,122.6(q,1JCF=286.2Hz),114.9,83.2,64.2,27.5;19F NMR(CDCl3,376MHz):δ-73.0(s,3F);IR(neat):ν=3238,3139,2978,2932,1712,1514,1478,1457,1370,1248,1199,1156,1073,1052,976,936,861,801,774,726cm-1;HRMS(ESI):[M-H]-(C18H16O2N2F3)-预测值349.1169;实测值349.1168.
实施例36:
96%收率,白色固体,m.p.:82-83℃;[α]D 25.0=-47.5(c=1.00,CHCl3);ee值:>99%,ee值通过HPLC确定(Chiralpak PC-II column,hexane/i-propanol=98/2,流速0.6mL/min;tmajor=14.9min,tminor=9.1min,λ=254nm);1H NMR(CDCl3,400MHz):δ7.46-7.36(m,5H),7.19(d,J=16.0Hz,1H),6.07(d,J=16.0Hz,1H),5.73(br,1H),1.48(s,9H);13C NMR(CDCl3,100MHz):δ152.8,138.2,134.0,129.6,128.9,127.3,122.0(q,1JCF=285.2Hz),117.5,112.6,83.2,59.8(q,2JCF=32.0Hz),28.0;19F NMR(CDCl3,376MHz):δ-76.4(s,3F);IR(neat):ν=3321,3148,2981,2933,1714,1499,1450,1370,1252,1204,1158,1061,963,750,691cm-1;HRMS(ESI):[M-H]-(C16H16O2N2F3)-预测值325.1169;实测值325.1171.
实施例37:
88%收率,白色固体,m.p.:74-75℃;[α]D 25.0=-37.9(c=1.00,CHCl3);ee值:99%,ee值通过HPLC确定(Chiralpak PC-II+IC column,hexane/i-propanol=99/1,流速0.6mL/min;tmajor=27.6min,tminor=25.4min,λ=254nm);1H NMR(CDCl3,400MHz):δ7.43-7.26(m,5H),6.05(br,1H),1.44(s,9H);13C NMR(CDCl3,100MHz):δ152.4,132.2,130.4,128.5,121.0(q,1JCF=286.3Hz),119.4,110.9,87.9,83.7,75.7,51.8(q,2JCF=36.4Hz),28.0;19F NMR(CDCl3,376MHz):δ-76.7(s,3F);IR(neat):ν=3313,3145,2982,2936,2242,1717,1492,1458,1446,1370,1247,1216,1156,1081,1047,965,870,775,757,730,689cm-1;HRMS(ESI):[M-H]-(C16H14O2N2F3)-预测值323.1013;实测值323.1014.
实施例38:
97%收率,白色固体;[α]D 25.0=+15.3(c=1.00,CHCl3);ee值:98%,ee值通过HPLC确定(Chiralpak AD-H column,hexane/i-propanol=95/5,流速0.8mL/min;tmajor=13.4min,tminor=10.2min,λ=254nm);1H NMR(CDCl3,400MHz):δ7.47-7.44(m,2H),7.09-7.07(m,1H),627(br,1H)1.39(s,9H);13C NMR(CDCl3,100MHz):δ152.7,134.0,129.4,128.3,127.3,121.3(q,1JCF=285.2Hz),113.1,83.5,59.1(q,2JCF=32.8Hz),27.8;19F NMR(CDCl3,376MHz):δ-76.3(s,3F).
实施例39:
94%收率,白色固体;[α]D 25.0=+51.3(c=1.00,CHCl3);ee值:98%,ee值通过HPLC确定(Chiralpak OD-H column,hexane/i-propanol=90/10,流速1.0mL/min;tmajor=9.9min,tminor=7.6min,λ=254nm);1H NMR(CDCl3,400MHz):7.61(d,J=7.2Hz,2H),7.49-7.41(m,3H),7.30(s,3H),7.20(s,2H),6.28(br,1H),5.08(q,J=12.0Hz,2H);13C NMR(CDCl3,100MHz):δ153.6,134.8,130.6,129.9,129.1,128.6,128.3,126.7,121.7(q,1JCF=284.7Hz),113.5,68.4,62.3(q,2JCF=31.2Hz);19F NMR(CDCl3,376MHz):δ-75.6(s,3F).
实施例40:
95%收率,白色固体,m.p.:111-112℃;[α]D 25.0=+41.9(c=1.00,CHCl3);ee值:>99%,ee值通过HPLC确定(Chiralpak AD-H column,hexane/i-propanol=98/2,流速0.6mL/min;tmajor=13.9min,tminor=10.0min,λ=254nm);1H NMR(CDCl3,400MHz):δ7.67-7.65(m,2H),7.51-7.45(m,3H),6.10(br,1H),1.31(s,9H);13C NMR(CDCl3,100MHz):δ152.6,130.4,128.8,127.2,119.0-106.2(m,3C),83.4,62.1(t,2JCF=24.2Hz),27.7;19FNMR(CDCl3,376MHz):δ-80.8--80.9(m,3F),-115.0(q,2F),-121.8(q,2F);IR(neat):ν=3251,3151,2982,2937,1716,1496,1454,1371,1339,1236,1156,1128,1061,1036,1004,982,863,847,827,779,727,713,698cm-1;HRMS(ESI):[M-H]-(C16H14O2N2F7)-预测值399.0949;实测值399.0954.
实施例41:
94%收率,无色油状物;[α]D 25.0=+37.4(c=1.00,CHCl3);ee值:97%,ee值通过HPLC确定(Chiralpak PC-II column,hexane/i-propanol=98/2,流速1.0mL/min;tmajor=10.1min,tminor=17.6min,λ=254nm);1H NMR(CDCl3,400MHz):δ7.58-7.56(m,2H),7.46-7.42(m,3H),6.06(br,1H),4.33-4.20(m,2H),1.33(s,9H),1.22(t,J=7.2Hz,3H);13C NMR(CDCl3,100MHz):δ160.9(t,2JCF=30.2Hz),152.5,130.8,130.1,128.8,126.7,114.3,111.1(t,1JCF=266.0Hz),82.6,64.4,63.0(t,2JCF=27.3Hz),27.9,13.6;19F NMR(CDCl3,376MHz):δ-110.4(d,J=234.2Hz,1F),-113.0(d,J=249.7Hz1F);IR(neat):ν=3408,3149,2982,2937,1769,1732,1494,1453,1395,1371,1315,1253,1157,1051,1004,940,909,858,778,747,719,699cm-1;HRMS(ESI):[M+Na]+(C17H20O4N2F2Na)+预测值377.1283;实测值377.1279.
实施例42:
93%收率,白色固体,m.p.:124-125℃;[α]D 25.0=+11.9(c=1.00,CHCl3);ee值:99%,ee值通过HPLC确定(Chiralpak AD-H column,hexane/i-propanol=90/10,流速1.0mL/min;tmajor=9.3min,tminor=8.2min,λ=254nm);1H NMR(CDCl3,400MHz):δ7.63-7.60(m,2H),7.48-7.46(m,3H),6.18(t,J=55.2Hz,1H),5.76(br,1H),1.38(s,9H);13C NMR(CDCl3,100MHz):δ153.4,131.1,130.1,129.1,126.6,115.1(t,3JCF=2.6Hz),112.1(t,1JCF=254.3Hz),82.8,61.7(t,2JCF=24.1Hz),27.9;19F NMR(CDCl3,376MHz):δ-125.8(d,J=276.4Hz,1F),-126.0(d,J=272.2Hz,1F);IR(neat):ν=3292,1693,1537,1452,1372,1296,1260,1154,1089,1046,1015,958,870,726,697cm-1;HRMS(ESI):[M-H]-(C14H15O2N2F2)-预测值281.1107;实测值281.1106.
实施例42:
95%收率,sticky liquid;[α]D 25.0=-42.3(c=1.00,CHCl3);ee值:90%,ee值通过HPLC确定(Chiralpak IC column,hexane/i-propanol=90/10,流速1.0mL/min;tmajor=18.3min,tminor=11.1min,λ=220nm);1H NMR(CDCl3,400MHz):δ7.67(s,2H),7.45-7.43(m,3H),5.70(br,1H),4.34-4.25(m,2H),1.46(s,9H),1.24(t,J=7.2Hz,3H);13C NMR(CDCl3,100MHz):δ165.3,153.3,132.8,130.1,129.3,125.9,116.2,81.9,64.2,28.1,13.7;IR(neat):ν=3350,2981,2936,1756,1716,1489,1452,1394,1369,1243,1159,1054,778,723,696cm-1;HRMS(ESI):[M+Na]+(C16H20O4N2Na)+预测值327.1315;实测值327.1312.
实施例43:
95%收率,白色固体;[α]D 25.1=+16.4(c=1.00,CHCl3);ee值:97%,ee值通过HPLC确定(Chiralpak PC-II column,hexane/i-propanol=95/5,流速0.8mL/min;tmajor=10.8min,tminor=12.4min,λ=220nm);1H NMR(CDCl3,400MHz):δ7.50-7.39(m,5H),5.80(d,J=7.2Hz,1H),5.17(s,1H),1.48(s,9H);13C NMR(CDCl3,100MHz):δ154.2,133.4,129.5,129.3,126.9,117.7,81.5,46.1,28.2.
实施例44:
85%收率,白色固体;[α]D 25.0=+8.2(c=1.00,CH2Cl2);ee值:58%,ee值通过HPLC确定(Chiralpak OJ+PC-II column,hexane/i-propanol=85/15,流速1.0mL/min;tmajor=27.3min,tminor=30.9min,λ=220nm);1H NMR(CDCl3,400MHz):δ7.99-7.94(m,2H),7.80-7.75(m,2H),7.60-7.47(m,6H),7.38-7.34(m,5H),5.20(t,J=10.4Hz,1H),4.39-4.31(m,1H);13C NMR(CDCl3,100MHz):δ135.0(d,JCP=3.6Hz),132.6(2C),132.5,132.4(d,JCP=2.9Hz),132.0,131.7(d,JCP=9.0Hz),131.1,130.7,129.8,129.1(2C),129.0,128.8,128.7,128.6,127.1,118.6(d,JCP=6.2Hz),46.1;31P NMR(CDCl3,162MHz):δ24.6.
实施例45:
89%收率,白色固体;[α]D 25.0=+26.0(c=1.00,CHCl3);ee值:51%,ee值通过HPLC确定(Chiralpak OD-H column,hexane/i-propanol=98/2,流速0.8mL/min;tmajor=9.4min,tminor=10.4min,λ=254nm);1H NMR(CDCl3,400MHz):δ7.57-7.53(m,4H),7.45-7.35(m,7H),7.31-7.20(m,4H),5.24(s,1H),4.59(s,1H),2.13(br,1H);13C NMR(CDCl3,100MHz):δ142.7,141.1,134.9,129.0(3C),128.8,127.9,127.7,127.4,127.2,127.1,118.8,67.0,52.4.
实施例46:
96%收率,白色固体;[α]D 25.0=-80.6(c=1.00,CHCl3);ee值:48%,ee值通过HPLC确定(Chiralpak OD-H column,hexane/i-propanol=90/10,流速0.7mL/min;tmajor=7.4min,tminor=8.4min,λ=254nm);1H NMR(CDCl3,400MHz):δ7.77(d,J=7.2Hz,2H),7.52-7.44(m,3H),6.70(d,J=9.2Hz,2H),6.60(d,J=8.8Hz,2H),4.32(s,1H),3.70(s,3H);13CNMR(CDCl3,100MHz):δ155.2,134.6,130.7,129.7,129.1,128.0,122.3(q,1JCF=284.3Hz),120.0,115.0,114.5,66.3(q,2JCF=29.8Hz),55.4;19F NMR(CDCl3,376MHz):δ-75.5(s,3F).
实施例47:
85%收率,淡黄色固体;[α]D 25.0=-24.2(c=1.00,CH2Cl2);ee值:75%,ee值通过HPLC确定(Chiralpak AD-H column,hexane/i-propanol=90/10,流速1.0mL/min;tmajor=13.8min,tminor=16.0min,λ=254nm);1H NMR(acetone-d6,400MHz):δ8.06(s,1H),7.74(d,J=7.6Hz,1H),7.70(d,J=6.8Hz,2H),7.61(d,J=8.0Hz,1H),7.54-7.45(m,3H),7.35(t,J=7.6Hz,1H),7.17(t,J=7.6Hz,1H),6.39(s,1H);13C NMR(acetone-d6,100MHz):δ164.2,151.9,134.1,131.3,129.3,129.2,127.5,125.9,122.4,121.1,119.6,118.1,48.7.
实施例48手性氰基化合物4a的制备-催化剂的影响
将N-苄基保护的靛红-Boc-亚胺3a(0.15mmol),K2HPO4(0.015mmol),催化剂(0.0015mmol)依次加入反应管中,然后加入异丙醚(1.0mL),将反应体系温度降至-20℃,15分钟后加入TMSCN(0.225mmol),继续在此温度下反应一定时间,TLC跟踪。当反应完全后,减压蒸除溶剂,粗产物经柱层析通过石油醚/乙酸乙酯提纯得手性氰基化产物4a。白色固体;[α]D 25.0=-56.8(c=1.50,CHCl3);1H NMR(CDCl3,400MHz):δ7.75(d,J=7.2Hz,1H),7.28-7.19(m,6H),7.05(t,J=7.6Hz,1H),6.68(d,J=8.0Hz,1H),5.66(s,1H),4.88(s,2H),1.36(s,9H);13C NMR(CDCl3,100MHz):δ168.2,153.6,142.1,134.2,131.2,129.0,128.1,127.2,126.2,124.7,124.3,114.6,110.3,82.4,54.8,44.9,28.1.
反应条件、收率及对映选择性结果如表5所示,其中,ee值通过HPLC确定(Chiralpak IC column,hexane/i-propanol=85/15,流速1.0mL/min;tmajor=21.7min,tminor=20.2min,λ=254nm);
表5
实施例49手性氰基化合物4a的制备-碱的影响
将N-苄基保护的靛红-Boc-亚胺3a(0.15mmol),碱(0.015mmol),催化剂(0.0015mmol)依次加入反应管中,然后加入TBME(1.0mL),将反应体系温度降至-10℃,15分钟后加入TMSCN(0.225mmol),继续在此温度下反应18小时,TLC跟踪。当反应完全后,减压蒸除溶剂,粗产物经柱层析通过石油醚/乙酸乙酯提纯得手性氰基化产物4a。
反应条件、收率及对映选择性结果如表6所示,其中,ee值通过HPLC确定(Chiralpak IC column,hexane/i-propanol=85/15,流速1.0mL/min;tmajor=21.7min,tminor=20.2min,λ=254nm);
表6
实施例50手性氰基化合物4a的制备-溶剂的影响
将N-苄基保护的靛红-Boc-亚胺3a(0.15mmol),K2HPO4(0.015mmol),催化剂(0.0015mmol)依次加入反应管中,然后加入溶剂(1.0mL),将反应体系温度降至-10℃,15分钟后加入TMSCN(0.225mmol),继续在此温度下反应18小时,TLC跟踪。当反应完全后,减压蒸除溶剂,粗产物经柱层析通过石油醚/乙酸乙酯提纯得手性氰基化产物4a。
反应条件、收率及对映选择性结果如表7所示,其中,ee值通过HPLC确定(Chiralpak IC column,hexane/i-propanol=85/15,流速1.0mL/min;tmajor=21.7min,tminor=20.2min,λ=254nm);
表7
实施例51:
将N-苄基保护的靛红-Boc-亚胺或3a(0.15mmol),K2HPO4(0.015mmol),催化剂I-3(0.001mmol)依次加入反应管中,然后加入异丙醚(1.0mL),将反应体系温度降至-20℃,15分钟后加入TMSCN(0.225mmol),继续在此温度下反应48h,TLC跟踪。当反应完全后,减压蒸除溶剂,粗产物经柱层析通过石油醚/乙酸乙酯提纯得手性氰基化产物4a。98%收率,白色固体;ee值:96%.
实施例52:
98%收率,白色固体;[α]D 25.0=-54.4(c=1.50,CHCl3);ee值:95%,ee值通过HPLC确定(Chiralpak AD-H column,hexane/i-propanol=85/15,流速1.0mL/min;tmajor=11.5min,tminor=9.8min,λ=254nm);1H NMR(CDCl3,400MHz):δ7.47(s,1H),7.17-7.09(m,5H),6.90(d,J=8.0Hz,1H),6.46(d,J=8.0Hz,1H),5.56(d,J=5.2Hz,1H),4.75(s,2H),2.14(s,3H),1.26(s,9H);13C NMR(CDCl3,100MHz):δ168.2,153.7,139.6,134.3,134.2,131.5,129.0,128.0,127.2,126.8,124.7,114.7,110.1,82.3,54.9,44.8,28.1,21.1.
实施例53:
98%收率,白色固体;[α]D 25.1=-51.3(c=1.50,CHCl3);ee值:93%,ee值通过HPLC确定(Chiralpak AS-H column,hexane/i-propanol=70/30,流速1.0mL/min;tmajor=12.6min,tminor=16.0min,λ=254nm);1H NMR(CDCl3,400MHz):δ7.40(s,1H),7.28-7.21(m,5H),6.74(dd,J1=8.8Hz,J2=2.4Hz,1H),6.58(d,J=8.8Hz,1H),5.67(s,1H),4.85(s,2H),3.69(s,3H),1.37(s,9H);13C NMR(CDCl3,100MHz):δ167.9,156.9,153.7,135.2,134.3,129.0,128.1,127.2,125.8,116.3,114.6,112.8,111.0,110.0,82.4,55.9,55.0,44.9,28.1.
实施例54:
98%收率,白色固体;[α]D 25.1=-44.4(c=1.50,CHCl3);ee值:95%,ee值通过HPLC确定(Chiralpak AD-H column,hexane/i-propanol=85/15,流速1.0mL/min;tmajor=13.0min,tminor=8.2min,λ=254nm);1H NMR(CDCl3,400MHz):δ7.82(d,J=1.6Hz,1H),7.36-7.25(m,6H),6.68(d,J=8.8Hz,1H),5.77(s,1H),4.95(s,2H),1.45(s,9H);13C NMR(CDCl3,100MHz):δ167.8,153.5,140.7,133.8,131.2,129.7,129.1,128.2,127.1,126.6,126.0,114.1,111.4,82.8,54.6,45.0,28.1.
实施例55:
92%收率,淡黄色固体;[α]D 25.0=-26.5(c=1.50,CHCl3);ee值:96%,ee值通过HPLC确定(Chiralpak AD-H column,hexane/i-propanol=85/15,流速1.0mL/min;tmajor=18.8min,tminor=10.4min,λ=254nm);1H NMR(CDCl3,400MHz):δ8.52(d,J=2.0Hz,1H),8.17(dd,J1=8.4Hz,J2=2.4Hz,1H),7.31-7.27(m,3H),7.25-7.23(m,1H),7.19(s,1H),6.79(d,J=8.8Hz,1H),5.88(s,1H),5.03-4.90(m,2H),1.36(s,9H);13C NMR(CDCl3,100MHz):δ168.5,153.2,147.6,144.3,133.2,129.2,128.5,127.9,127.2,125.2,121.3,113.4,110.3,83.3,54.4,45.4,28.1.
实施例56:
98%收率,白色固体,m.p.:179-180℃;[α]D 25.0=-51.0(c=1.50,CHCl3);ee值:96%,ee值通过HPLC确定(Chiralpak AS-H column,hexane/i-propanol=85/15,流速1.0mL/min;tmajor=11.4min,tminor=17.1min,λ=254nm);1H NMR(CDCl3,400MHz):δ7.81-7.78(m,1H),7.38-7.31(m,5H),6.80(td,J1=8.8Hz,J2=2.0Hz,1H),6.49(dd,J1=8.4Hz,J2=2.0Hz,1H),5.74(s,1H),4.93(s,2H),1.44(s,9H);13C NMR(CDCl3,100MHz):δ168.5,164.4(d,1JCF=249.1Hz),153.6,143.9(d,3JCF=11.8Hz),133.7,129.1,128.3,127.8,127.2,120.1(d,3JCF=3.3Hz),114.3,110.6(d,2JCF=22.6Hz),99.3(d,2JCF=28.1Hz),82.6,54.3,45.1,28.1;19F NMR(CDCl3,376MHz):δ-106.4(s,1F);IR(neat):ν=3323,2981,2933,1718,1615,1498,1457,1372,1352,1279,1256,1163,1104,1081,983,936,863,841,736,700,658cm-1;HRMS(ESI):[M+Na]+(C21H20O3N3FNa)+预测值404.1381;实测值404.1385.
实施例57:
98%收率,白色固体;[α]D 25.0=-53.2(c=1.50,CHCl3);ee值:95%,ee值通过HPLC确定(Chiralpak AS-H column,hexane/i-propanol=85/15,流速1.0mL/min;tmajor=11.1min,tminor=15.2min,λ=254nm);1H NMR(CDCl3,400MHz):δ7.74(d,J=8.0Hz,1H),7.38-7.31(m,5H),7.11(dd,J1=8.0Hz,J2=1.6Hz,1H),6.76(s,1H),5.75(s,1H),4.93(s,2H),1.43(s,9H);13C NMR(CDCl3,100MHz):δ168.2,153.5,143.3,137.2,133.7,129.1,128.3,127.2,124.3,122.9,114.1,111.0,82.6,54.4,45.0,28.1.
实施例58:
98%收率,白色固体;[α]D 25.0=-49.3(c=1.50,CHCl3);ee值:96%,ee值通过HPLC确定(Chiralpak AS-H column,hexane/i-propanol=85/15,流速1.0mL/min;tmajor=12.4min,tminor=16.4min,λ=254nm);1H NMR(CDCl3,400MHz):δ7.68(d,J=8.0Hz,1H),7.39-7.27(m,6H),6.91(d,J=1.6Hz,1H),5.69(s,1H),4.93(s,2H),1.43(s,9H);13C NMR(CDCl3,100MHz):δ168.1,153.5,143.4,133.7,129.1,128.3,127.4,127.2,127.1,125.2,123.4,114.0,113.7,82.7,54.4,45.0,28.1.
实施例59:
98%收率,白色固体,m.p.:143-144℃;[α]D 25.0=-47.4(c=1.50,CHCl3);ee值:94%,ee值通过HPLC确定(Chiralpak AS-H column,hexane/i-propanol=85/15,流速1.0mL/min;tmajor=8.3min,tminor=24.4min,λ=254nm);1H NMR(CDCl3,400MHz):δ7.59(s,1H),7.37-7.28(m,5H),7.10-7.07(m,2H),5.76(s,1H),5.09(s,2H),1.41(s,9H);13C NMR(CDCl3,100MHz):δ168.0,153.4,147.5(d,1JCF=245.2Hz),135.5,129.1(d,3JCF=9.5Hz),128.8,128.0,127.4(d,3JCF=1.4Hz),127.1(d,3JCF=2.7Hz),125.0(d,3JCF=6.4Hz),121.8,119.5(d,2JCF=19.4Hz),114.1,82.6,54.8(d,3JCF=3.0Hz),46.6(d,3JCF=5.0Hz),28.1;19F NMR(CDCl3,376MHz):δ-131.9(t,1F);IR(neat):ν=3320,2980,2935,1718,1629,1605,1491,1473,1456,1369,1280,1247,1161,1045,1018,856,783,733,700cm-1;HRMS(ESI):[M+Na]+(C21H20O3N3FNa)+预测值404.1381;实测值404.1384.
实施例60:
98%收率,白色固体;[α]D 25.0=-45.9(c=1.50,CHCl3);ee值:96%,ee值通过HPLC确定(Chiralpak AD-H column,hexane/i-propanol=85/15,流速1.0mL/min;tmajor=11.1min,tminor=13.4min,λ=254nm);1H NMR(CDCl3,400MHz):δ7.68-7.67(m,1H),7.34(t,J=7.2Hz,2H),,7.28-7.21(m,3H)7.07-7.03(m,2H),5.74(s,1H),5.22(s,2H),2.25(s,3H),1.44(s,9H);13C NMR(CDCl3,100MHz):δ169.3,153.5,140.2,136.1,135.2,129.1,127.6,125.5,125.3,124.3,123.7,121.1,114.7,82.3,54.5,46.2,28.1,18.7.
实施例61:
98%收率,白色固体;[α]D 25.1=-77.2(c=1.50,CHCl3);ee值:97%,ee值通过HPLC确定(Chiralpak AD-H column,hexane/i-propanol=85/15,流速1.0mL/min;tmajor=17.0min,tminor=12.5min,λ=254nm);1H NMR(CDCl3,400MHz):δ7.83(d,J=7.2Hz,1H),7.46-7.42(m,1H),7.18(t,J=7.6Hz,1H),6.91(d,J=7.6Hz,1H),5.65(s,1H),3.29(s,3H),1.41(s,9H);13C NMR(CDCl3,100MHz):δ167.9,153.5,143.0,131.3,125.2,124.7,124.3,114.5,109.2,82.3,54.6,28.1,27.3.
实施例62:
98%收率,白色固体;[α]D 25.0=-55.8(c=0.50,CHCl3);ee值:96%,ee值通过HPLC确定(Chiralpak AS-H column,hexane/i-propanol=70/30,流速1.0mL/min;tmajor=13.1min,tminor=8.8min,λ=254nm);1H NMR(acetone-d6,400MHz):δ10.04(s,1H),7.78(s,1H),7.64(d,J=7.6Hz,1H),7.40(t,J=8.2Hz,1H),7.15(t,J=7.6Hz,1H),7.04(d,J=7.6Hz,1H),1.34(s,9H);13C NMR(acetone-d6,100MHz):δ174.2,147.0,136.2,131.3,129.8,128.4,120.2,116.0,85.7,60.3.
实施例63:
92%收率,无色油状物;[α]D 25.0=+18.7(c=1.00,CHCl3);ee值:76%,ee值通过HPLC确定(Chiralpak AS-H column,hexane/i-propanol=90/10,流速1.0mL/min;tmajor=8.7min,tminor=19.9min,λ=254nm);1H NMR(CDCl3,400MHz):δ8.26(d,J=7.6Hz,1H),7.78-7.70(m,2H),7.58(t,J=7.2Hz,1H),7.46-7.45(m,2H),7.31-7.24(m,3H),6.68(br,1H),5.25(s,2H),1.19(s,9H);13C NMR(CDCl3,100MHz):δ165.5,162.2,153.5,135.8,135.1,134.4,130.3,129.8,128.7,128.5,127.8,125.9,124.6,114.6,82.9,54.9,45.2,27.8;IR(neat):ν=3335,2979,2934,1721,1686,1603,1497,1457,1432,1370,1344,1282,1257,1230,1157,1099,1078,1012,968,759,735,702cm-1;HRMS(ESI):[M+Na]+(C22H21O4N3Na)+预测值414.1424;实测值414.1426。
Claims (14)
2.如权利要求1所述的如式I或式II所示的化合物,其特征在于,当R1、R2、R5和R6独立地为C1-C6烷基时,所述C1-C6烷基为C1-C4烷基;
和/或,当R1、R2、R5和R6独立地为C6-C10芳基时,所述C6-C10芳基为苯基或萘基;
和/或,当R3、R4、R7和R8独立地为C6-C10芳基时,所述C6-C10芳基为苯基或萘基;
和/或,当R3、R4、R7和R8独立地为被一个或多个Ra取代的C6-C10芳基时,所述被一个或多个Ra取代的C6-C10芳基为“被一个或多个Ra取代的苯基”或“被一个或多个Ra取代的萘基”,当Ra的取代个数为多个时,各Ra相同或不同;
和/或,当各Ra独立地为C1-C6烷氧基时,所述C1-C6烷氧基为C1-C4烷氧基;
和/或,当各Ra独立地为被一个或多个卤素取代的C1-C6烷基时,所述卤素为F、Cl、Br或I;
和/或,当各Ra独立地为被一个或多个卤素取代的C1-C6烷基时,所述C1-C6烷基为C1-C4烷基。
3.如权利要求1所述的如式I或式II所示的化合物,其特征在于,当R1、R2、R5和R6独立地为C1-C6烷基时,所述C1-C6烷基为甲基、乙基、异丙基、1-甲基-丙基、2-甲基-丙基或叔丁基;和/或,当R1、R2、R5和R6独立地为C6-C10芳基时,所述C6-C10芳基为苯基;
和/或,当R3、R4、R7和R8独立地为被一个或多个Ra取代的C6-C10芳基时,所述被一个或多个Ra取代的C6-C10芳基为“被一个或多个Ra取代的苯基”,当Ra的取代个数为多个时,各Ra相同或不同;
和/或,当各Ra独立地为C1-C6烷氧基时,所述C1-C6烷氧基为甲氧基;
和/或,当各Ra独立地为被一个或多个卤素取代的C1-C6烷基时,所述卤素为F;
和/或,当各Ra独立地为被一个或多个卤素取代的C1-C6烷基时,所述C1-C6烷基为甲基。
6.如权利要求1所述的如式I或式II所示的化合物,其特征在于,X1和X2的定义相同;
和/或,R1和R2的定义相同;
和/或,R3和R4的定义相同;
和/或,R1和R2独立地为C1-C6烷基或苄基;
和/或,Y1和Y2的定义相同;
和/或,R5和R6的定义相同;
和/或,R7和R8的定义相同。
10.如权利要求1~7任一项所述如式I或式II所示的化合物的应用,其特征在于,所述如式I或式II所示的化合物在亚胺类化合物的氰基化反应中用作催化剂;所述亚胺类化合物为如式III或式IV所示的化合物:
当所述亚胺类化合物为如式III所示的化合物时,所述氰基化反应包括如下步骤:在如式I或式II所示的化合物的催化下,在碱的存在下,如式III所示的化合物与三甲基氰硅烷进行如下氰基化反应,得如式V所示的化合物;
当所述亚胺类化合物为如式IV所示的化合物时,所述氰基化反应包括如下步骤:在如式I或式II所示的化合物的催化下,在碱的存在下,如式IV所示的化合物与三甲基氰硅烷进行如下氰基化反应,得如式VI所示的化合物;
其中,PG为氨基保护基;
L1为单键、-CH=CH-或-C≡C-;
R9为“杂原子选自N、O和S中的一种或多种,杂原子数为1-4个的3-10元杂芳基”、被一个或多个Rb取代的“杂原子选自N、O和S中的一种或多种,杂原子数为1-4个的3-10元杂芳基”、C6-C10芳基或“被一个或多个Rc取代的C6-C10芳基”;
Rb和Rc独立地为卤素、C1-C6烷基、被一个或多个卤素取代的C1-C6烷基、C1-C6烷氧基或硝基;
R10为氢、C1-C6烷基、被一个或多个Rd取代的C1-C6烷基、-CO2Re或“杂原子选自N、O和S中的一种或多种,杂原子数为1-4个的3-10元杂环烷基”;
各Rd独立地为卤素或-CO2Re;
Re为C1-C6烷基;
R11、R12、R13和R14独立地为H、卤素、硝基、C1-C6烷基、C1-C6烷氧基或“被一个或多个卤素取代的C1-C6烷基”;
n为0或1;
R15为H、C1-C6烷基或苄基。
11.如权利要求10所述如式I或式II所示的化合物的应用,其特征在于,所述氨基保护基为叔丁氧羰基、苄基、苄氧羰基、对甲氧基苯基,三苯基甲基、二苯基甲基、二苯基膦甲基、二苯基膦氧基、苯磺酰基、苯亚磺酰基或苯并噻唑基;
和/或,当R9为“杂原子选自N、O和S中的一种或多种,杂原子数为1-4个的3-10元杂芳基”为,所述“杂原子选自N、O和S中的一种或多种,杂原子数为1-4个的3-10元杂芳基”为“杂原子选自N、O和S中的一种或多种,杂原子数为1-2个的3-6元杂芳基”;
和/或,当R9为C6-C10芳基时,所述C6-C10芳基为苯基或萘基;
和/或,当Rb和Rc独立地为卤素时,所述卤素为F、Cl、Br或I;
和/或,当Rb和Rc独立地为C1-C6烷基时,所述C1-C6烷基为C1-C4烷基;
和/或,当Rb和Rc独立地为被一个或多个卤素取代的C1-C6烷基时,所述被一个或多个卤素取代的C1-C6烷基为CF3;
和/或,当Rb和Rc独立地为C1-C6烷氧基时,所述C1-C6烷氧基为C1-C4烷氧基;
和/或,当R10为C1-C6烷基时,所述C1-C6烷基为C1-C4烷基;
和/或,当R10为被一个或多个Rd取代的C1-C6烷基时,所述C1-C6烷基为C1-C4烷基;
和/或,当Re为C1-C6烷基时,所述C1-C6烷基为C1-C4烷基;
和/或,当R11、R12、R13和R14独立地为卤素时,所述卤素为F、Cl、Br或I;
和/或,当R11、R12、R13和R14独立地为C1-C6烷基时,所述C1-C6烷基为C1-C4烷基;
和/或,当R11、R12、R13和R14独立地为C1-C6烷氧基时,所述C1-C6烷氧基为C1-C4烷氧基;
和/或,当R11、R12、R13和R14独立地为被一个或多个卤素取代的C1-C6烷基时,所述被一个或多个卤素取代的C1-C6烷基为CF3;
和/或,当R15为C1-C6烷基时,所述C1-C6烷基为C1-C4烷基。
12.如权利要求10所述如式I或式II所示的化合物的应用,其特征在于,所述氨基保护基为叔丁氧羰基、苄基、苄氧羰基、对甲氧基苯基、二苯基甲基、二苯基膦氧基、苯磺酰基或苯并噻唑基;
和/或,当R9为“杂原子选自N、O和S中的一种或多种,杂原子数为1-4个的3-10元杂芳基”时,所述“杂原子选自N、O和S中的一种或多种,杂原子数为1-4个的3-10元杂芳基”为噻吩基;
和/或,当Rb和Rc独立地为卤素时,所述卤素为F、Cl或Br;
和/或,当Rb和Rc独立地为C1-C6烷基时,所述C1-C6烷基为甲基;
和/或,当Rb和Rc独立地为C1-C6烷氧基时,所述C1-C6烷氧基为甲氧基;
和/或,当R10为C1-C6烷基时,所述C1-C6烷基为甲基;
和/或,当R10为被一个或多个Rd取代的C1-C6烷基时,所述C1-C6烷基为甲基或丙基;
和/或,当各Rd独立地为卤素时,所述卤素为F;
和/或,当Re为C1-C6烷基时,所述C1-C6烷基为乙基;
和/或,当R11、R12、R13和R14独立地为卤素时,所述卤素为F、Cl或Br;
和/或,当R11、R12、R13和R14独立地为C1-C6烷基时,所述C1-C6烷基为甲基;
和/或,当R11、R12、R13和R14独立地为C1-C6烷氧基时,所述C1-C6烷氧基为甲氧基;
和/或,当R15为C1-C6烷基时,所述C1-C6烷基为甲基;
和/或,n为0。
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