CN114957239B - 一种手性含氟托品烷衍生物及其制备方法和应用 - Google Patents
一种手性含氟托品烷衍生物及其制备方法和应用 Download PDFInfo
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- CN114957239B CN114957239B CN202110908026.6A CN202110908026A CN114957239B CN 114957239 B CN114957239 B CN 114957239B CN 202110908026 A CN202110908026 A CN 202110908026A CN 114957239 B CN114957239 B CN 114957239B
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- 229910052731 fluorine Inorganic materials 0.000 title claims abstract description 26
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- 239000011737 fluorine Substances 0.000 title claims abstract description 25
- 150000001875 compounds Chemical class 0.000 claims abstract description 38
- 239000003054 catalyst Substances 0.000 claims abstract description 18
- 150000003839 salts Chemical class 0.000 claims abstract description 14
- 229910052751 metal Inorganic materials 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims abstract description 12
- 239000003960 organic solvent Substances 0.000 claims abstract description 12
- 150000004714 phosphonium salts Chemical group 0.000 claims abstract description 10
- 239000003814 drug Substances 0.000 claims abstract description 6
- 239000003513 alkali Substances 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 5
- 229940126062 Compound A Drugs 0.000 claims abstract description 3
- NLDMNSXOCDLTTB-UHFFFAOYSA-N Heterophylliin A Natural products O1C2COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC2C(OC(=O)C=2C=C(O)C(O)=C(O)C=2)C(O)C1OC(=O)C1=CC(O)=C(O)C(O)=C1 NLDMNSXOCDLTTB-UHFFFAOYSA-N 0.000 claims abstract description 3
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- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 claims description 12
- 229910052739 hydrogen Inorganic materials 0.000 claims description 11
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- 230000035484 reaction time Effects 0.000 claims description 11
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 10
- 150000002431 hydrogen Chemical class 0.000 claims description 10
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 9
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical group CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 9
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- 125000003118 aryl group Chemical group 0.000 claims description 6
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- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 4
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- QARVLSVVCXYDNA-UHFFFAOYSA-N bromobenzene Chemical compound BrC1=CC=CC=C1 QARVLSVVCXYDNA-UHFFFAOYSA-N 0.000 claims description 4
- FJDQFPXHSGXQBY-UHFFFAOYSA-L caesium carbonate Chemical compound [Cs+].[Cs+].[O-]C([O-])=O FJDQFPXHSGXQBY-UHFFFAOYSA-L 0.000 claims description 4
- 229910000024 caesium carbonate Inorganic materials 0.000 claims description 4
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 claims description 4
- OPQARKPSCNTWTJ-UHFFFAOYSA-L copper(ii) acetate Chemical compound [Cu+2].CC([O-])=O.CC([O-])=O OPQARKPSCNTWTJ-UHFFFAOYSA-L 0.000 claims description 4
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- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 4
- NCXADAULCYRZML-UHFFFAOYSA-N (carbamothioylamino)urea Chemical compound NC(=O)NNC(N)=S NCXADAULCYRZML-UHFFFAOYSA-N 0.000 claims description 3
- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 claims description 3
- 206010028980 Neoplasm Diseases 0.000 claims description 3
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- UMGDCJDMYOKAJW-UHFFFAOYSA-N aminothiocarboxamide Natural products NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims description 3
- KZTYYGOKRVBIMI-UHFFFAOYSA-N diphenyl sulfone Chemical compound C=1C=CC=CC=1S(=O)(=O)C1=CC=CC=C1 KZTYYGOKRVBIMI-UHFFFAOYSA-N 0.000 claims description 3
- 229910052736 halogen Inorganic materials 0.000 claims description 3
- 150000002367 halogens Chemical group 0.000 claims description 3
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- CBNBGETWKBUTEL-UHFFFAOYSA-K tripotassium;phosphate;heptahydrate Chemical compound O.O.O.O.O.O.O.[K+].[K+].[K+].[O-]P([O-])([O-])=O CBNBGETWKBUTEL-UHFFFAOYSA-K 0.000 claims description 3
- KPZYAGQLBFUTMA-UHFFFAOYSA-K tripotassium;phosphate;trihydrate Chemical compound O.O.O.[K+].[K+].[K+].[O-]P([O-])([O-])=O KPZYAGQLBFUTMA-UHFFFAOYSA-K 0.000 claims description 3
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- GETTZEONDQJALK-UHFFFAOYSA-N (trifluoromethyl)benzene Chemical compound FC(F)(F)C1=CC=CC=C1 GETTZEONDQJALK-UHFFFAOYSA-N 0.000 claims description 2
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 claims description 2
- ZXSQEZNORDWBGZ-UHFFFAOYSA-N 1,3-dihydropyrrolo[2,3-b]pyridin-2-one Chemical compound C1=CN=C2NC(=O)CC2=C1 ZXSQEZNORDWBGZ-UHFFFAOYSA-N 0.000 claims description 2
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 claims description 2
- ODWXUNBKCRECNW-UHFFFAOYSA-M bromocopper(1+) Chemical compound Br[Cu+] ODWXUNBKCRECNW-UHFFFAOYSA-M 0.000 claims description 2
- 229910000365 copper sulfate Inorganic materials 0.000 claims description 2
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- GBRBMTNGQBKBQE-UHFFFAOYSA-L copper;diiodide Chemical compound I[Cu]I GBRBMTNGQBKBQE-UHFFFAOYSA-L 0.000 claims description 2
- 239000012973 diazabicyclooctane Substances 0.000 claims description 2
- UZKWTJUDCOPSNM-UHFFFAOYSA-N methoxybenzene Substances CCCCOC=C UZKWTJUDCOPSNM-UHFFFAOYSA-N 0.000 claims description 2
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- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 206010012601 diabetes mellitus Diseases 0.000 description 1
- 125000001028 difluoromethyl group Chemical group [H]C(F)(F)* 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000009509 drug development Methods 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000003818 flash chromatography Methods 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 239000012737 fresh medium Substances 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 230000009036 growth inhibition Effects 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 210000005260 human cell Anatomy 0.000 description 1
- 238000011534 incubation Methods 0.000 description 1
- PZOUSPYUWWUPPK-UHFFFAOYSA-N indole Natural products CC1=CC=CC2=C1C=CN2 PZOUSPYUWWUPPK-UHFFFAOYSA-N 0.000 description 1
- RKJUIXBNRJVNHR-UHFFFAOYSA-N indolenine Natural products C1=CC=C2CC=NC2=C1 RKJUIXBNRJVNHR-UHFFFAOYSA-N 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 150000007529 inorganic bases Chemical class 0.000 description 1
- INQOMBQAUSQDDS-UHFFFAOYSA-N iodomethane Chemical compound IC INQOMBQAUSQDDS-UHFFFAOYSA-N 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 229930014626 natural product Natural products 0.000 description 1
- 230000000926 neurological effect Effects 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 238000000655 nuclear magnetic resonance spectrum Methods 0.000 description 1
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- 238000012827 research and development Methods 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
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- 230000009466 transformation Effects 0.000 description 1
- 230000035899 viability Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
本发明公开了一种手性含氟托品烷衍生物及其制备方法和应用,制备方法包括以下步骤:将化合物A和化合物B溶于有机溶剂中,加入手性季鏻盐催化剂,碱和金属盐,反应制得手性含氟托品烷衍生物。本发明通过新型高效的不对称催化反应,一锅法构建了手性含氟托品烷衍生物,该方法合成的手性托品烷衍生物具有高立体选择性和优秀的分离产率,操作简便,原料易得,可多样性合成一系列多取代手性含氟托品烷衍生物。本发明提供的手性含氟托品烷衍生物在制备预防和/或治疗黑色素瘤和宫颈癌药物中具有较大的应用潜力和开发前景。
Description
技术领域
本发明涉及化工和医药技术领域,具体涉及一种手性含氟托品烷衍生物及其制备方法和应用。
背景技术
托品烷骨架广泛存在于天然产物和药物分子结构中,具有重要的生物和药理活性。许多托品烷类化合物在疾病治疗中扮演着十分关键的角色,可用于部分癌症、二型糖尿病、神经系统疾病和精神疾病的治疗。托品烷类化合物由于其具有氮杂桥环结构,且往往含有多个连续的手性中心,导致托品烷类化合物的不对称合成具有很大的挑战与难度。目前,不对称合成手性托品烷类化合物存在以下问题:1)合成线路冗杂,总产率较低;2)不对称催化合成的报道较少,缺乏高效的合成方法;3)催化体系单一,多样性合成受限;4)产物结构类型单一,手性含氟托品烷的构筑至今未见报道。因此,开发一类新型的不对称催化方法以构建手性含氟托品烷化合物具有重要的研究意义和应用价值,实现这类手性含氟托品烷的构筑不仅可以丰富托品烷化合物家族,更有利于托品烷类化合物在生物活性探究和药物研发方面的开发与应用。
发明内容
为了解决现有技术存在的上述不足,本发明的目的是提供一种手性含氟托品烷衍生物及其制备方法和应用,该手性含氟托品烷衍生物,包括结构通式I及其相应的对映异构体和非对映异构体,或其盐、或其晶型:
其中,
R1为氢,C1-20烷基,烷基醇,硝基,酮羰基,醛基,羧基,酰胺,酯基,磺酰基,三氟甲基,羧基;
R2为氢,C1-20烷基,烷氧基,芳基或取代芳基,苄基或者取代的苄基;
R3为氢,C1-20烷基,叔丁氧羰基,酰基,苄基或者取代的苄基,氯甲酸酯基;
R4为氢,芳基砜或取代芳基砜,芳基亚砜或取代芳基亚砜,芳基硫醚或取代芳基硫醚;
Ar为芳基或者取代芳基,杂环或取代的杂环;
FG为含氟基团。
进一步地,
R1为酯基,羧基,烷基醇,醛基,酰胺;
R2为氢,C1-20烷基(如甲基,乙基,异丙基,环己基等),苄基;
R3为氢,叔丁氧羰基,对甲氧基苄基(PMB),烷基(如甲基,乙基等),酰基(如乙酰基);
R4为氢,芳基砜或取代芳基砜(如苯基砜或取代的苯基砜、吡啶砜);
Ar为芳基(如苯基,萘基,呋喃,吡咯,吡啶,噻吩,喹啉,异喹啉,吲哚,苯并呋喃,苯并噻吩)或者取代芳基(如卤素、甲基、甲氧基、叔丁氧羰基、叔丁基二甲基等取代)。
FG为氟原子,一氟甲基,二氟甲基,三氟甲基,五氟乙基,氯代二氟甲基,溴代二氟甲基。
进一步地,其结构式为如下但不限于如下结构:
上述手性含氟托品烷衍生物的制备方法,包括以下步骤:
将化合物A和化合物B溶于有机溶剂中,加入手性季鏻盐催化剂,碱和金属盐,反应制得手性含氟托品烷衍生物即式I化合物;
其合成路线如下:
进一步地,有机溶剂为二氯甲烷,氯仿,1,2-二氯乙烷,正己烷,环己烷,石油醚,四氢呋喃,乙醚,甲基叔丁基醚,乙酸乙酯,甲醇,乙醇,乙腈,甲苯,二甲苯,三甲苯,氯苯,氟苯,溴苯,苯甲醚或三氟甲苯。
进一步,碱为有机碱或无机碱,优选碱为三乙胺,二异丙基乙基胺,DABCO,碳酸氢钾,碳酸钾,碳酸钠,碳酸铯,磷酸钾,三水磷酸钾,七水磷酸钾,磷酸钠,十水磷酸钠,氢氧化钠,氢氧化钾或氢氧化锂。
进一步,金属盐为亚硝酸银,硝酸银,醋酸银,四氟硼酸银,碳酸银,硫酸银,氧化银,三氟甲磺酸银,三氟甲磺酸铜,醋酸铜,硫酸铜,碘化亚铜,氯化亚铜,溴化亚铜,四氟硼酸亚铜。
进一步,反应温度为-78~40℃,反应时间为2~48h。
进一步,手性季鏻盐催化剂为:
其中,化合物P中,R5为氢,C1-20烷基,芳基或者取代的芳基,苄基或取代的苄基,杂环或取代的杂环;R6为Boc,Ts,酰基,脲基,硫脲基或取代的硫脲基,羰基或取代的羰基;R7为苯基或者取代的苯基,苄基或取代的苄基,萘基或取代的萘基;X为卤素,PO4,NO2,NO3,BF4,OTf,OAc或OBoc;
进一步,手性季鏻盐催化剂为:
进一步地,手性季鏻盐催化剂P的制备方法包括以下步骤:
将氨基膦与天然氨基酸缩合得到的手性三价膦通过wittig反应,一步制得手性双功能季鏻盐催化剂,合成路线如下:
将碘甲烷缓慢滴加到三价膦的DCM溶液中,室温搅拌值反应完全(点板监测),水洗萃取浓缩得到目标化合物;或者在三价膦的甲苯溶液中加入苄溴,回流5小时,冷却旋干再重结晶得到产物;
其中,R5为氢,C1-20烷基,芳基或者取代的芳基,苄基或取代的苄基,杂环或取代的杂环;R6为Boc,Ts,酰基,脲基,硫脲基或取代的硫脲基,羰基或取代的羰基;R7为苯基或者取代的苯基,苄基或取代的苄基,萘基或取代的萘基;X为卤素,PO4,NO2,NO3,BF4,OTf,OAc或OBoc;
上述三价膦和苄溴化合物的制备过程是采用现有技术进行制备。
上述手性含氟托品烷衍生物在制备预防和/或治疗肿瘤药物中的应用。
本发明具有以下有益效果:
(1)本发明通过新型高效的不对称催化反应,一锅法构建了手性含氟托品烷衍生物,该方法合成的手性托品烷衍生物具有高立体选择性和优秀的分离产率,操作简便,原料易得,可多样性合成一系列多取代手性含氟托品烷衍生物。
(2)本发明使用到的新型手性二肽类型季鏻盐结构可调性高,能够高效实现反应的不对称转化。该类季鏻盐对水氧稳定,能够在室温条件下长时间保存,其合成原料易得廉价,可大量制备合成。
(3)本发明提供的手性含氟托品烷衍生物在抑制肿瘤细胞生长的测试中均表现出了一定的活性,如结肠癌、黑色素瘤、宫颈癌和胃癌,其中在黑色素瘤和宫颈癌细胞的生物活性测试中表现出较好的抑制效果,且对正常人体细胞的抑制效果不明显,在制备预防和/或治疗黑色素瘤和宫颈癌药物中具有较大的应用潜力和开发前景。
附图说明
图1为实施例3中化合物I-4的单晶结构图。
图2为实施例1中化合物I-1的消旋体HPLC谱图。
图3为实施例1中化合物I-1的手性产物HPLC谱图。
图4为实施例2中化合物I-2的消旋体HPLC谱图。
图5为实施例2中化合物I-2的手性产物HPLC谱图。
图6为实施例3中化合物I-4的消旋体HPLC谱图。
图7为实施例3中化合物I-4的手性产物HPLC谱图。
图8为实施例4中化合物I-7的消旋体HPLC谱图。
图9为实施例4中化合物I-7的手性产物HPLC谱图。
图10为实施例5中化合物I-14的消旋体HPLC谱图。
图11为实施例5中化合物I-14的手性产物HPLC谱图。
具体实施方式
以下所举实例只用于解释本发明,并非用于限定本发明的范围。实施例中未注明具体条件者,按照常规条件或制造商建议的条件进行。所用试剂或仪器未注明生产厂商者,均为可以通过市售购买获得的常规产品。
实施例1:
甲基(5R,6S,7S,8S)-5-甲基-6-(苯砜基)-7-(三氟甲基)-5,6,7,9-四氢-8H-5,8-环亚胺苯并[7]轮烯-8-羧酸酯(I-1)的制备:
将20.3mg化合物1a(0.10mmol)和23.6mg化合物1b(0.10mmol),碳酸铯65mg(0.2mmol),三氟甲磺酸铜(0.02mmol),催化剂P-10(0.01mmol)和1mL二氯甲烷加入到圆底烧瓶中,在25℃下匀速搅拌反应5小时,TLC点板检测显示原料1a和1b消耗完全,加入食盐水淬灭,二氯甲烷萃取,干燥,减压除溶,快速柱层析(石油醚/乙酸乙酯,v/v=10/1),得到39.5mg产品I-1。
表征数据:90%yield,白色粉末,熔点:124-126℃;
1H NMR(400MHz,Chloroform-d)δ7.90–7.84(m,2H),7.69–7.63(m,1H),7.60–7.53(m,2H),7.31–7.26(m,1H),7.23–7.17(m,2H),7.09–7.04(m,1H),3.91(s,3H),3.70(d,J=4.7Hz,1H),3.68–3.65(m,1H),3.65–3.59(m,1H),3.52(d,J=17.3Hz,1H),3.13(d,J=17.3Hz,1H),2.17(s,3H);13C NMR(100MHz,Chloroform-d)δ171.85,140.84,138.19,134.50,132.30,129.57,129.08,128.61,128.16,127.06,124.41(q,J=278.6Hz),123.20,73.37,68.26,67.23,54.81(q,J=28.1Hz),53.60,34.59,21.38;19F NMR(376MHz,Chloroform-d)δ-64.46.
HRMS(ESI)m/z calcd for C21H20F3NO4S[M+H]+=440.1138,found=440.1139;
The ee value was 94%,tR(major)=9.7min,tR(minor)=14.6min(ChiralcelIF,λ=254nm,20%i-PrOH/hexane,flow rate=1.0mL/min).dr>20:1.
由上述核磁和质谱数据可知,所得产物结构正确。
实施例2
乙基(5R,6S,7S,8S)-5-甲基-6-(苯砜基)-7-(三氟甲基)-5,6,7,9-四氢-8H-5,8-环亚胺苯并[7]轮烯-8-羧酸酯(I-2)的制备:
该实施例的制备方法与实施例1类似,仅仅是反应过程中原料及反应条件发生了变化,该制备过程中所用有机溶剂为氯仿,催化剂为P-11,反应温度为0℃,反应时间为10小时。
表征数据:86%yield,白色粉末,熔点:86-88℃;
1H NMR(400MHz,Chloroform-d)δ7.91–7.82(m,2H),7.68–7.62(m,1H),7.59–7.51(m,2H),7.31–7.26(m,1H),7.23–7.16(m,2H),7.10–7.03(m,1H),4.42–4.30(m,2H),3.70(d,J=4.6Hz,1H),3.69–3.66(m,1H),3.66–3.59(m,1H),3.51(d,J=17.3Hz,1H),3.12(d,J=17.4Hz,1H),2.18(s,3H),1.38(t,J=7.2Hz,3H);13C NMR(100MHz,Chloroform-d)δ171.30,140.87,138.18,134.48,132.40,129.55,129.06,128.60,128.14,127.02,124.43(q,J=278.8Hz),123.21,73.38,68.32,67.22,62.67,54.84(q,J=28.1Hz),34.49,21.36,14.15;19F NMR(376MHz,Chloroform-d)δ-64.45.
HRMS(ESI)m/z calcd for:C22H22F3NO4S[M+H]+=454.1295found=454.1297.
The ee value was 90%,tR(major)=11.3min,tR(minor)=21.9min(ChiralcelIF,λ=254nm,10%i-PrOH/hexane,flow rate=1.0mL/min).dr>20:1.
由上述核磁和质谱数据可知,所得产物结构正确。
实施例3
甲基(5R,6S,7S,8S)-5-乙基-6-(苯砜基)-7-(三氟甲基)-5,6,7,9-四氢-8H-5,8-环亚胺苯并[7]轮烯-8-羧酸酯(I-4)的制备:
该实施例的制备方法与实施例1类似,仅仅是反应过程中原料及反应条件发生了变化,该制备过程中所用有机溶剂为氯仿,催化剂为P-11,反应温度为25℃,反应时间为5小时。其单晶结构见图1。
表征数据:91%yield,白色粉末,熔点:120-122℃;
1H NMR(400MHz,Chloroform-d)δ7.91–7.80(m,2H),7.68–7.61(m,1H),7.59–7.51(m,2H),7.25–7.15(m,3H),7.11–7.02(m,1H),3.91(s,3H),3.69(d,J=4.7Hz,1H),3.63–3.55(m,1H),3.50(d,J=17.2Hz,1H),3.42(s,1H),3.09(d,J=17.3Hz,1H),2.83–2.70(m,2H),0.95(t,J=7.3Hz,3H);13C NMR(100MHz,Chloroform-d)δ172.07,138.50,137.84,134.41,133.75,129.53,129.06,127.90,126.89,124.42(q,J=279.0Hz),123.79,74.39,73.36,67.12,54.79(q,J=28.1Hz),53.54,34.65,26.01,10.05;19F NMR(376MHz,Chloroform-d)δ-64.42.
HRMS(ESI)m/z calcd for:C22H22F3NO4S[M+H]+=454.1295found=454.1295.
The ee value was 94%,tR(major)=26.9min,tR(minor)=35.5min(ChiralcelIA,λ=254nm,5%i-PrOH/hexane,flow rate=0.5mL/min).dr>20:1.
由上述核磁和质谱数据以及单晶数据可知,所得产物结构正确。
实施例4
甲基(5R,6S,7S,8S)-5-苄基-6-(苯砜基)-7-(三氟甲基)-5,6,7,9-四氢-8H-5,8-环亚胺苯并[7]轮烯-8-羧酸酯(I-7)的制备:
该实施例的制备方法与实施例1类似,仅仅是反应过程中原料及反应条件发生了变化,该制备过程中所用有机溶剂为三甲苯,催化剂为P-20,金属盐为醋酸铜,反应温度为25℃,反应时间为3小时。
表征数据:88%yield,白色粉末,熔点:74-76℃;
1H NMR(400MHz,Chloroform-d)δ7.98–7.87(m,2H),7.72–7.64(m,1H),7.63–7.54(m,2H),7.37–7.31(m,2H),7.31–7.27(m,1H),7.15–7.03(m,5H),7.01–6.96(m,1H),4.27–4.12(m,2H),3.93(s,3H),3.83(d,J=4.6Hz,1H),3.71–3.62(m,1H),3.61(s,1H),3.51(d,J=17.1Hz,1H),3.07(d,J=17.2Hz,1H);13C NMR(100MHz,Chloroform-d)δ172.05,138.40,137.73,137.07,134.55,133.44,130.72,129.61,129.18,128.91,127.90,127.81,126.48,126.12,124.97,124.45(q,J=278.7Hz),75.12,72.81,67.47,54.06(q,J=28.3Hz),53.58,38.58,34.55;19F NMR(376MHz,Chloroform-d)δ-64.27.
HRMS(ESI)m/z calcd for:C27H24F3NO4S[M+H]+=516.1451,found=516.1452;
The ee value was 88%,tR(major)=20.2min,tR(minor)=23.3min(ChiralcelIF,λ=254nm,10%i-PrOH/hexane,flow rate=1.0mL/min).dr>20:1.
由上述核磁和质谱数据可知,所得产物结构正确。
实施例5
甲基(5R,6S,7S,8S)-5-乙基-3-甲基-6-(苯砜基)-7-(三氟甲基)-5,6,7,9-四氢-8H-5,8-环亚胺苯并[7]轮烯-8-羧酸酯(I-14)的制备:
该实施例的制备方法与实施例1类似,仅仅是反应过程中原料及反应条件发生了变化,该制备过程中所用碱为碳酸铯,催化剂为P-18,金属盐为醋酸银,反应温度为0℃,反应时间为20小时。
表征数据:92%yield,白色粉末,熔点:114-116℃;
1H NMR(400MHz,Chloroform-d)δ7.91–7.81(m,2H),7.68–7.61(m,1H),7.59–7.51(m,2H),7.03(s,1H),7.01–6.97(m,1H),6.95(d,J=7.8Hz,1H),3.90(s,3H),3.68(d,J=4.7Hz,1H),3.63–3.52(m,1H),3.45(d,J=17.1Hz,1H),3.39(s,1H),3.04(d,J=17.1Hz,1H),2.88–2.68(m,2H),2.33(s,3H),0.96(t,J=7.2Hz,3H);13C NMR(100MHz,Chloroform-d)δ172.16,138.52,137.62,136.40,134.39,130.56,129.50,129.08,128.91,128.75,124.42(q,J=278.7Hz),124.16,74.43,73.40,67.20,54.79(q,J=28.0Hz),53.49,34.27,26.01,21.50,10.12;19F NMR(376MHz,Chloroform-d)δ-64.40.
HRMS(ESI)m/z calcd for:C23H24F3NO4S[M+H]+=468.1451,found=468.1449;
The ee value was 94%,tR(minor)=13.8min,tR(major)=15.6min(ChiralcelID,λ=254nm,10%i-PrOH/hexane,flow rate=1.0mL/min).dr>20:1.
由上述核磁和质谱数据可知,所得产物结构正确。
实施例6
甲基(5R,6S,7S,8S)-3-((叔丁基二甲基硅基)氧基)-5-乙基-6-(苯砜基)-7-(三氟甲基)-5,6,7,9-四氢-8H-5,8-环亚胺苯并[7]轮烯-8-羧酸酯(I-20)的制备:
该实施例的制备方法与实施例1类似,仅仅是反应过程中原料及反应条件发生了变化,该制备过程中所用有机溶剂为乙酸乙酯,催化剂为P-11,金属盐为碘化亚铜,反应温度为20℃,反应时间为2小时。
表征数据:94%yield,白色粉末,熔点:56-58℃;
1H NMR(400MHz,Chloroform-d)δ7.89–7.82(m,2H),7.68–7.62(m,1H),7.59–7.52(m,2H),6.96–6.90(m,1H),6.73–6.67(m,2H),3.90(s,3H),3.67(d,J=4.7Hz,1H),3.60–3.52(m,1H),3.45(d,J=17.0Hz,1H),3.01(d,J=16.9Hz,1H),2.77–2.66(m,2H),0.98(s,12H),0.18(d,J=3.6Hz,6H);13C NMR(100MHz,Chloroform-d)δ171.98,154.45,138.60,138.40,134.45,130.13,129.56,129.04,126.39,124.32(q,J=278.6Hz),120.26,115.24,74.11,73.24,67.14,54.55(q,J=28.2Hz),53.58,33.78,26.03,25.83,18.36,10.02,-4.24,-4.31;19F NMR(376MHz,Chloroform-d)δ-64.46.
HRMS(ESI)m/z calcd for:C28H36F3NO5SSi[M+H]+=584.2109,found=584.2110;
由上述核磁和质谱数据可知,所得产物结构正确。
实施例7
甲基(7R,8S,9S,10S)-7-乙基-8-(苯砜基)-9-(三氟甲基)-7,8,9,11-四氢-10H-7,10-环亚胺环庚[a]萘-10-羧酸酯(I-24)的制备:
该实施例的制备方法与实施例1类似,仅仅是反应过程中原料及反应条件发生了变化,该制备过程中所用碱为三乙胺,催化剂为P-11,金属盐为硝酸银,反应温度为20℃,反应时间为3小时。
表征数据:85%yield,白色粉末,熔点:88-90℃;
1H NMR(400MHz,Chloroform-d)δ7.95–7.85(m,3H),7.85–7.79(m,1H),7.76(d,J=8.7Hz,1H),7.67–7.61(m,1H),7.59–7.46(m,4H),7.40(d,J=8.7Hz,1H),3.97(s,3H),3.80(d,J=4.5Hz,1H),3.77(d,J=17.3Hz,1H),3.70–3.61(m,1H),3.61–3.55(m,1H),3.51(d,J=17.4Hz,1H),2.99–2.74(m,2H),0.94(t,J=7.3Hz,3H);13C NMR(101MHz,Chloroform-d)δ172.21,138.38,135.06,134.44,132.54,131.77,129.76,129.54,129.05,128.45,127.73,126.78,126.31,124.36(q,J=278.6Hz),123.18,121.48,73.93,73.60,67.01,55.11(q,J=28.1Hz),53.63,32.23,26.35,10.14;19F NMR(376MHz,Chloroform-d)δ-64.72.
HRMS(ESI)m/z calcd for:C26H24F3NO4S[M+H]+=504.1451,found=504.1450;
由上述核磁和质谱数据可知,所得产物结构正确。
实施例8
甲基(5R,6S,7S,8S)-5-乙基-7五氟乙基-6-(苯砜基)-5,6,7,9-四氢-8H-5,8-环亚胺苯并[7]轮烯-8-羧酸酯(I-29)的制备:
该实施例的制备方法与实施例1类似,仅仅是反应过程中原料及反应条件发生了变化,该制备过程中所用碱为七水磷酸钾,有机溶剂为乙醚,催化剂为P-11,金属盐为醋酸银,反应温度为20℃,反应时间为2小时。
表征数据:89%yield,白色粉末,熔点:140-142℃;
1H NMR(400MHz,Chloroform-d)δ7.92–7.85(m,2H),7.70–7.64(m,1H),7.60–7.53(m,2H),7.22–7.15(m,2H),7.14–7.05(m,2H),4.07–3.95(m,1H),3.91(s,3H),3.86(dd,J=4.5,1.2Hz,1H),3.62(d,J=17.1Hz,1H),3.53(s,1H),3.07(dd,J=17.1,2.6Hz,1H),2.79–2.65(m,1H),2.56–2.42(m,1H),0.88(t,J=7.3Hz,3H);13C NMR(100MHz,Chloroform-d)δ171.97,138.81,138.79,137.25,134.41,129.42,129.12,128.92,127.90,126.80,123.95,74.84,72.72,68.01,67.98,53.63,51.05(dd,J=24.0,18.2Hz),35.29,25.89,10.04;19FNMR(376MHz,Chloroform-d)δ-83.23,-106.48(d,J=280.0Hz),-117.88(d,J=279.7Hz).
HRMS(ESI)m/z calcd for:C23H22F5NO4S[M+H]+=504.1263,found=504.1265;
由上述核磁和质谱数据可知,所得产物结构正确。
实施例9
甲基(5R,6S,7S,8S)-5-乙基-6-对甲苯磺基-7-(三氟甲基)-5,6,7,9-四氢-8H-5,8-环亚胺苯并[7]轮烯-8-羧酸酯(I-32)的制备:
该实施例的制备方法与实施例1类似,仅仅是反应过程中原料及反应条件发生了变化,该制备过程中所用有机溶剂为氯仿,催化剂为P-11,金属盐为醋酸铜,反应温度为20℃,反应时间为4小时。
表征数据:91%yield,白色粉末,熔点:122-124℃;
1H NMR(400MHz,Chloroform-d)δ7.76–7.69(m,2H),7.33(d,J=8.1Hz,2H),7.23–7.16(m,3H),7.10–7.05(m,1H),3.90(s,3H),3.66(d,J=4.6Hz,1H),3.62–3.55(m,1H),3.50(d,J=17.2Hz,1H),3.43(s,1H),3.09(d,J=17.2Hz,1H),2.81–2.70(m,2H),2.43(s,3H),0.94(t,J=7.2Hz,3H);13C NMR(100MHz,Chloroform-d)δ172.09,145.57,137.91,135.61,133.79,130.14,129.07,129.05,127.84,126.85,124.49(q,J=278.9Hz),123.82,74.43,73.24,67.05,54.77(q,J=28.1Hz),53.50,34.67,25.97,21.82,10.04;19F NMR(376MHz,Chloroform-d)δ-64.35.
HRMS(ESI)m/z calcd for:C23H24F3NO4S[M+H]+=468.1451,found=468.1453;
由上述核磁和质谱数据可知,所得产物结构正确。
实施例10
甲基(5R,6S,7S,8S)-6-((4-氯苯基)砜基)-5-乙基-7-(三氟甲基)-5,6,7,9-四氢-8H-5,8-环亚胺苯并[7]轮烯-8-羧酸酯(I-35)的制备:
该实施例的制备方法与实施例1类似,仅仅是反应过程中原料及反应条件发生了变化,该制备过程中所用有机溶剂为二甲苯,碱为三水磷酸钾,催化剂为P-10,金属盐为硝酸银,反应温度为20℃,反应时间为3小时。
表征数据:90%yield,白色粉末,熔点:84-86℃;
1H NMR(400MHz,Chloroform-d)δ7.82–7.76(m,2H),7.55–7.50(m,2H),7.25–7.17(m,3H),7.10–7.05(m,1H),3.90(s,3H),3.67(d,J=4.7Hz,1H),3.61–3.54(m,1H),3.54–3.48(m,1H),3.38(s,1H),3.08(d,J=17.2Hz,1H),2.87–2.77(m,1H),2.76–2.66(m,1H),0.95(t,J=7.3Hz,3H);13C NMR(101MHz,Chloroform-d)δ172.04,141.33,137.70,136.97,133.65,130.48,129.87,129.10,127.99,126.95,124.38(d,J=278.7Hz),123.75,74.48,73.50,67.19,54.89(q,J=28.1Hz),53.59,34.57,26.04,10.05;19F NMR(376MHz,Chloroform-d)δ-64.27.
HRMS(ESI)m/z calcd for:C22H21ClF3NO4S[M+H]+=488.0905,found=488.0906;
由上述核磁和质谱数据可知,所得产物结构正确。
上述化合物及其制备方法仅仅是本发明列举的一些实例,而本发明保护的剩余化合物及其制备方法可以根据替换原料来完成不同化合物的制备,从而得到不同的化合物。
试验例本发明化合物对肿瘤细胞的抑制实验
1、实验方法
实验细胞:A375(黑色素瘤细胞)、HELA(宫颈癌细胞)、HCT116(结肠癌细胞)和NCIN87(胃癌细胞)。
将对数生长期的细胞接种入96孔培养板中,每孔100μL。培养过夜后细胞贴壁,给药组每孔加入含有化合物的培养基100μL(终浓度20μmmol/L);对照组每孔仅加入相应培养基100μL。继续培养72h,去除旧培养基,每孔加入含10%体积CCK-8试剂的新鲜培养基100μL,未培养细胞的孔中加入含10%CCK-8的培养基作为空白组。37℃孵育2h,利用酶标仪检测每孔450nm和600nm处的OD值,以600nm为参比波长,计算时扣除其OD值。
计算方法:计算20μmmol/L浓度下的细胞存活率,存活率=[1-(对照组OD值-给药组OD值)/(对照组OD值-空白组OD值)]×100%。
2、实验结果
本发明化合物在20μM浓度下A375细胞的存活率如表1所示。由表1可以看出,本发明化合物对A375(黑色素瘤)细胞的生长具有不同程度的抑制作用,细胞存活率越低代表该化合物对肿瘤细胞的生长抑制效果越好,即具有潜在的抗肿瘤活性。值得注意的是,化合物I-5、I-6、I-7和I-43在20μmmol/L浓度下对黑色素瘤细胞的生长抑制非常明显,抑制率(1-存活率)均大于90%,具有进一步开发和应用的潜力。
在以上生物活性测试结果的基础之上,我们对化合物I-5、I-6、I-7和I-43进行了更加深入的研究测试,表2为上述化合物在四类肿瘤细胞(黑色素瘤细胞、宫颈癌细胞、结肠癌细胞和胃癌细胞)的IC50值。通过表2我们发现,化合物I-5和I-43在A375(黑色素瘤)和HELA(宫颈癌)细胞中表现出了较为理想的IC50值,反映出该类化合物具有较好的抗肿瘤活性和药物开发的潜力。
表1.本发明化合物在20μM浓度下A375细胞的存活率
化合物编号 | 细胞存活率% | 化合物编号 | 细胞存活率% |
I-1 | 113.8% | I-14 | 100.8% |
I-2 | 81.7% | I-15 | 95.5% |
I-3 | 32.2% | I-38 | 108.1% |
I-4 | 79.1% | I-31 | 92.4% |
I-5 | 0.7% | I-33 | 100.8% |
I-43 | 1.6% | I-37 | 78.6% |
I-6 | 1.3% | I-29 | 54.4% |
I-7 | 5.6% | I-32 | 49.1% |
I-12 | 93.7% | I-34 | 102.2% |
表2.本发明部分化合物对A375(黑色素瘤细胞)、HELA(宫颈癌细胞)、HCT116(结肠癌细胞)和NCIN87细胞的IC50(μmmol/L).
化合物编号 | A375 | HELA | HCT116 | NCIN87 |
I-5 | 5.50 | 5.27 | 14.36 | 29.23 |
I-43 | 5.63 | 3.43 | 12.47 | 27.74 |
I-6 | 11.47 | 12.01 | 24.98 | 40.40 |
I-7 | 8.92 | 15.01 | 196.40 | - |
以上所述仅为本发明的较佳实施例,并不用以限制本发明,凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
Claims (8)
1.一种手性含氟托品烷衍生物,其特征在于,包括:结构通式I及其相应的对映异构体和非对映异构体,或其盐:
其中,
R1为甲酯、乙酯、异丙酯;
R2为C1-20烷基;
R3为氢;
R4为苯基砜、
Ar为苯环、
FG为三氟甲基,五氟乙基。
2.一种手性含氟托品烷衍生物,其特征在于,结构式如下:
3.权利要求1~2任一项所述的手性含氟托品烷衍生物的制备方法,其特征在于,将化合物A和化合物B溶于有机溶剂中,加入手性季鏻盐催化剂,碱和金属盐,反应制得手性含氟托品烷衍生物即式I化合物;
其合成路线如下:
所述手性季鏻盐催化剂为:
其中,化合物P中,R5为氢,C1-20烷基,芳基或者取代的芳基,苄基或取代的苄基,杂环或取代的杂环;R6为Boc,Ts,酰基,脲基,硫脲基或取代的硫脲基,羰基或取代的羰基;R7为苯基或者取代的苯基,苄基或取代的苄基,萘基或取代的萘基;X为卤素,PO4,NO2,NO3,BF4,OTf,OAc或OBoc。
4.根据权利要求3所述的手性含氟托品烷衍生物的制备方法,其特征在于,有机溶剂为二氯甲烷,氯仿,1,2-二氯乙烷,正己烷,环己烷,石油醚,四氢呋喃,乙醚,甲基叔丁基醚,乙酸乙酯,甲醇,乙醇,乙腈,甲苯,二甲苯,三甲苯,氯苯,氟苯,溴苯,苯甲醚或三氟甲苯。
5.根据权利要求3所述的手性含氟托品烷衍生物的制备方法,其特征在于碱为三乙胺,二异丙基乙基胺,DABCO,碳酸氢钾,碳酸钾,碳酸钠,碳酸铯,磷酸钾,三水磷酸钾,七水磷酸钾,磷酸钠,十水磷酸钠,氢氧化钠,氢氧化钾或氢氧化锂。
6.根据权利要求3所述的手性含氟托品烷衍生物的制备方法,其特征在于,金属盐为亚硝酸银,硝酸银,醋酸银,四氟硼酸银,碳酸银,硫酸银,氧化银,三氟甲磺酸银,三氟甲磺酸铜,醋酸铜,硫酸铜,碘化亚铜,氯化亚铜,溴化亚铜,四氟硼酸亚铜。
7.根据权利要求3所述的手性含氟托品烷衍生物的制备方法,其特征在于,反应温度为-78~40℃,反应时间为2~48h。
8.权利要求1~2任一项所述的手性含氟托品烷衍生物在制备治疗肿瘤药物中的应用。
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