CN112341435B - 一种免疫调节剂 - Google Patents
一种免疫调节剂 Download PDFInfo
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- CN112341435B CN112341435B CN202010787279.8A CN202010787279A CN112341435B CN 112341435 B CN112341435 B CN 112341435B CN 202010787279 A CN202010787279 A CN 202010787279A CN 112341435 B CN112341435 B CN 112341435B
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Abstract
本发明公开了一种免疫调节剂,具体涉及一类抑制IL‑17A的化合物及其作为免疫调节剂在制备药物中的用途。本发明公开了式I所示的化合物、或其立体异构体在制备抑制IL‑17A类药物中的用途,为临床上筛选和/或制备与IL‑17A活性相关的疾病的药物提供了一种新的选择。
Description
技术领域
本发明涉及一种免疫调节剂及其在制备药物中的用途。
背景技术
IL-17(白细胞介素-17)是促炎性细胞因子,在诱导其他炎性细胞因子、趋化因子和粘附因子中发挥作用。IL-17家族由参与急性和慢性炎症反应的细胞因子组成,包括IL-17A(CTLA-8)、IL-17B、IL-17C、IL-17D、IL-17E(IL-25)和IL-17F。IL-17A由TH17细胞表达,其参与炎症和自身免疫性疾病的病理发生。人类IL-17A是分子量约为17000道尔顿的糖蛋白。IL-17A通过IL-17受体复合物(IL-17RA和IL-17RC)将信号传送至细胞内(Wright,etal.Journal of immunology,2008,181:2799-2805)。IL-17A的主要功能是通过促炎和嗜中性粒细胞迁移细胞因子和趋化因子(包括IL-6,G-CSF,TNF-α,IL-1,CXCL1,CCL2,CXCL2)的上调来协调局部组织炎症,以及基质金属蛋白酶来允许活化的T细胞穿透细胞外基质。有研究表明IL-17A在严重哮喘和慢性阻塞性肺疾病(COPD)中发挥重要作用,那些患者通常对目前可用的药物无响应或响应不良(Al-Ramli et al.J Allergy Clin Immunol,2009,123:1185-1187)。IL-17A水平上调涉及许多疾病,包括类风湿性关节炎(RA)、骨侵蚀、腹膜内脓肿、炎性肠病、同种异体移植物排斥反应、牛皮癣、动脉粥样硬化、哮喘和多发性硬化症(Gaffen,SL et al.Arthritis Research&Therapy,2004,6:240-247)。
靶向IL-17A与IL-17RA的结合是治疗IL-17A介导的自身免疫性炎性疾病的有效策略。通过IL-17A中和抗体治疗动物在自身免疫性脑脊髓炎中降低疾病发病率和严重性(Komiyama Y et al.J.Immunol.,2006,177:566-573)。已有IL-17A抗体的临床试验在IL-7A介导的炎性疾病(包括哮喘、牛皮癣、类风湿性关节炎、强直性脊柱炎和多发性硬化症)上显示出良好的结果。IL-17A抗体(Novartis的Cosentyx/secukinumab)在2015年1月已被FDA批准用于牛皮癣的治疗。
尽管存在多种IL-17A抗体,但很少有对具有口服生物利用度的IL-17的小分子特异性抑制剂进行研究。鉴于产生抗体的成本考虑和给药途径的限制,开发IL-17A小分子抑制剂药物具有良好的研发前景。
发明内容
本发明提供了式I所示的化合物、或其立体异构体、或其药学上可接受的盐:
其中,
A环选自5~10元芳环、5~10元杂芳环;其中芳环、芳杂环可进一步被一个、两个或三个RA1取代;
每个RA1独立选自卤素、氰基、硝基、-C1~10烷基、卤素取代的-C1~10烷基、-OH、-O(C1~10烷基)、-NH2、-NH(C1~10烷基)、-N(C1~10烷基)(C1~10烷基);
R1选自氢、C1~10烷基、3~10元环烷基;
R2选自氢、-C1~10烷基、卤素取代的-C1~10烷基、3~10元环烷基、3~10元杂环烷基、-O(C1~10烷基)、-O(3~10元环烷基)、-O(3~10元杂环烷基);其中烷基、环烷基、杂环烷基可进一步被一个、两个或三个R21取代;
每个R21独立选自卤素、氰基、硝基、-C1~10烷基、卤素取代的-C1~10烷基、-OH、-O(C1~10烷基)、-NH2、-NH(C1~10烷基)、-N(C1~10烷基)(C1~10烷基);
B环选自5~10元芳环、5~10元杂芳环;其中芳环、杂芳环可进一步被一个、两个或三个RB1取代;
每个RB1独立选自卤素、氰基、硝基、-C1~10烷基、卤素取代的-C1~10烷基、-ORB2、-OC(O)RB2、-C(O)RB2、-C(O)ORB2、-C(O)NRB2RB3、-NRB2RB3、-NRB2C(O)RB3;
RB2、RB3分别独立选自氢、-C1~10烷基;
C环选自5~12元杂环烷基;其中杂环烷基可以进一步被一个、两个、三个或四个RC1取代;
每个RC1独立选自卤素、氰基、羰基、硝基、-C1~10烷基、卤素取代的-C1~10烷基、-ORC2、-OC(O)RC2、-C(O)RC2、-C(O)ORC2、-C(O)NRC2RC3、-NRC2RC3、-NRC2C(O)RC3;
RC2、RC3分别独立选自氢、-C1~10烷基。
进一步地,
A环选自5~6元芳环、5~6元杂芳环;其中芳环、芳杂环可进一步被一个、两个或三个RA1取代;
每个RA1独立选自卤素、氰基、硝基、-C1~6烷基、卤素取代的-C1~6烷基、-OH、-O(C1~6烷基)、-NH2、-NH(C1~6烷基)、-N(C1~6烷基)(C1~6烷基);
R1选自氢、C1~6烷基、3~6元环烷基;
R2选自氢、-C1~6烷基、卤素取代的-C1~6烷基、3~6元环烷基、3~6元杂环烷基、-O(C1~6烷基)、-O(3~6元环烷基)、-O(3~6元杂环烷基);其中烷基、环烷基、杂环烷基可进一步被一个、两个或三个R21取代;
每个R21独立选自卤素、氰基、硝基、-C1~6烷基、卤素取代的-C1~6烷基、-OH、-O(C1~6烷基)、-NH2、-NH(C1~6烷基)、-N(C1~6烷基)(C1~6烷基);
B环选自5~6元芳环、5~6元杂芳环;其中芳环、杂芳环可进一步被一个、两个或三个RB1取代;
每个RB1独立选自卤素、氰基、硝基、-C1~6烷基、卤素取代的-C1~6烷基、-ORB2、-OC(O)RB2、-C(O)RB2、-C(O)ORB2、-C(O)NRB2RB3、-NRB2RB3、-NRB2C(O)RB3;
RB2、RB3分别独立选自氢、-C1~6烷基;
C环选自5~11元杂环烷基;其中杂环烷基可以进一步被一个、两个、三个或四个RC1取代;
每个RC1独立选自卤素、氰基、羰基、硝基、-C1~6烷基、卤素取代的-C1~6烷基、-ORC2、-OC(O)RC2、-C(O)RC2、-C(O)ORC2、-C(O)NRC2RC3、-NRC2RC3、-NRC2C(O)RC3;
RC2、RC3分别独立选自氢、-C1~6烷基。
进一步地,所述式I的化合物如式II所示:
其中,
RA1选自氢、-C1~6烷基;
R1选自氢、C1~6烷基;
R2选自氢、-C1~6烷基、卤素取代的-C1~6烷基、3~6元环烷基、3~6元杂环烷基;其中烷基、环烷基、杂环烷基可进一步被一个、两个或三个R21取代;
每个R21独立选自卤素、C1~6烷基、卤素取代的-C1~6烷基;
RB1选自氢、卤素、氰基、硝基、-C1~6烷基、卤素取代的-C1~6烷基;
RC1选自氢、-C1~6烷基;
RC1’选自-OC(O)RC2、-C(O)RC2、-C(O)ORC2、-C(O)NRC2RC3、-NRC2C(O)RC3;
RC2、RC3分别独立选自氢、-C1~6烷基。
L选自-C1~6亚烷基-;其中亚烷基中的碳原子可被杂原子替换。
在本发明的一些实施方案中,进一步地,L选自-C1~6亚烷基-时,其中亚烷基中的碳原子可被氧原子替换。
在本发明的一些具体实施方案中,进一步地,所述式II的化合物具体为:
本发明还提供了前述化合物、或其立体异构体、或其药学上可接受的盐在制备治疗IL-17A介导的疾病的药物中的用途。
进一步地,所述IL-17A介导的疾病是与炎症、自身免疫性疾病、感染性疾病、癌症、癌前期综合征相关的疾病中的一种或几种。
本发明还提供了一种药物组合物,它是以前述化合物、或其立体异构体、或其药学上可接受的盐,加上药学上可接受的辅料制备而成的制剂。
本发明还提供了前述的化合物、或其立体异构体、或其药学上可接受的盐、或其溶剂合物、或其前体药物、或其代谢产物在制备治疗IL-17A介导的疾病的药物中的用途。
本发明所定义的IL-17A介导的疾病是IL-17A在该疾病的病理发生中起重要作用的疾病。IL-17A的主要功能是协调局部组织炎症,从而在各种疾病中起作用。IL-17A介导的疾病包括炎症、自身免疫性疾病、感染性疾病、癌症、癌前期综合征相关的疾病中的一种或几种。。
“癌症”或“恶性肿瘤”是指以不受控制的细胞异常增殖为特征的多种疾病中的任何一种,受影响的细胞在局部或通过血流和淋巴系统扩散到其他部位的能力的身体(即转移)以及许多特征结构和/或分子特征中的任何一个。“癌细胞”是指经历多步骤肿瘤进展的早期,中期或晚期阶段的细胞。癌症包括肉瘤、乳腺癌、肺癌、脑癌、骨癌、肝癌、肾癌、结肠癌和前列腺癌。在一些实施方案中,式I的化合物用于治疗选自结肠癌、脑癌、乳腺癌、纤维肉瘤和鳞状细胞癌的癌症。在一些实施方案中,癌症选自黑素瘤、乳腺癌、结肠癌、肺癌和卵巢癌。在一些实施方案中,所治疗的癌症是转移性癌症。
自身免疫性疾病是由身体对体内正常存在的物质和组织的免疫反应引起的。自身免疫疾病的例子包括心肌炎、狼疮性肾炎、原发性胆汁性肝硬化、牛皮癣、1型糖尿病、格雷夫氏病、腹腔疾病、克罗恩病、自身免疫性中性白细胞减少症、幼年型关节炎、类风湿性关节炎、纤维肌痛、吉兰巴利综合征、多发性硬化症和自身免疫性视网膜病变。本发明的一些实施方案涉及治疗自身免疫疾病如牛皮癣或多发性硬化症。
炎症疾病包括以组织病理性炎症为特征的多种病症。炎性疾病的例子包括寻常性痤疮、哮喘、腹腔疾病、慢性前列腺炎、肾小球性肾炎、炎症性肠病、盆腔炎、再灌注损伤、类风湿性关节炎、结节病、血管炎、房尘螨引起的气道炎症和间质性膀胱炎。炎性疾病与自身免疫性疾病之间存在显著重叠。本发明的一些实施方案涉及炎性疾病哮喘的治疗。免疫系统通常涉及炎症性疾病,在过敏反应和一些肌病中都有表现,许多免疫系统疾病导致异常炎症。IL-17A介导的疾病也包括自身免疫性炎症性疾病。
本发明中提供的化合物和衍生物可以根据IUPAC(国际纯粹与应用化学联合会)或CAS(化学文摘服务社,Columbus,OH)命名系统命名。
关于本发明的使用术语的定义:除非另有说明,本文中基团或者术语提供的初始定义适用于整篇说明书的该基团或者术语;对于本文没有具体定义的术语,应该根据公开内容和上下文,给出本领域技术人员能够给予它们的含义。
“取代”是指分子中的氢原子被其它不同的原子或分子所替换。
碳氢基团中碳原子含量的最小值和最大值通过前缀表示,例如,前缀Ca~b烷基表明任何含“a”至“b”个碳原子的烷基。因此,例如,“C1~4烷基”是指包含1~4个碳原子的烷基。
“烷基”是指具有指定数目的成员原子的饱和烃链。例如,C1~C6烷基是指具有1至6个成员原子,例如1至4个成员原子的烷基基团。烷基基团可以是直链或支链的。代表性的支链烷基基团具有一个、两个或三个支链。烷基基团可任选地被一个或多个如本文所定义的取代基取代。烷基包括甲基、乙基、丙基(正丙基和异丙基)、丁基(正丁基、异丁基和叔丁基)、戊基(正戊基、异戊基和新戊基)和己基。烷基基团也可以是其他基团的一部分,所述其他基团为例如C1~C6烷氧基。
“环烷基”是指具有3至14个碳原子且没有环杂原子且具有单个环或多个环(包括稠合、桥连和螺环体系)的饱和或部分饱和的环状基团。对于具有不含环杂原子的芳族和非芳族环的多环体系,当连接点位于非芳族碳原子时,适用术语“环烷基”(例如5,6,7,8,-四氢化萘-5-基)。术语“环烷基”包括环烯基基团,诸如环己烯基。环烷基基团的实例包括例如,金刚烷基、环丙基、环丁基、环己基、环戊基、环辛基、环戊烯基和环己烯基。包括多双环烷基环体系的环烷基基团的实例是双环己基、双环戊基、双环辛基等。下面例举并命名两种此类双环烷基多环结构∶双环己基和双环己基。
“烯基”是指具有2至10个碳原子和在一些实施方案中2至6个碳原子或2至4个碳原子且具有至少1个乙烯基不饱和位点(>C=C<)的直链或支链烃基基团。例如,(Ca-Cb)烯基是指具有a至b个碳原子的烯基基团并且意在包括例如乙烯基、丙烯基、异丙烯基、1,3-丁二烯基等。
“炔基”是指含有至少一个三键的直链一价烃基或支链一价烃基。术语“炔基”还意在包括具有一个三键和一个双键的那些烃基基团。例如,(C2-C6)炔基意在包括乙炔基、丙炔基等。
“卤素”为氟、氯、溴或碘。
“卤素烷基”指烷基中的氢原子可被一个或多个卤素原子取代。例如C1~4卤素烷基指氢原子被一个或多个卤素原子取代的包含1~4个碳原子的烷基。
“杂环”、“杂环烷基”指包含至少一个杂原子的饱和环或非芳香性的不饱和环;其中杂原子指氮原子、氧原子、硫原子;
“芳杂环”指包含至少一个杂原子的芳香性不饱和环;其中杂原子指氮原子、氧原子、硫原子;
“立体异构体”包括对映异构体和非对映异构体;
术语“药学上可接受的”是指某载体、运载物、稀释剂、辅料,和/或所形成的盐通常在化学上或物理上与构成某药物剂型的其它成分相兼容,并在生理上与受体相兼容。
术语“盐”和“可药用的盐”是指上述化合物或其立体异构体,与无机和/或有机酸和碱形成的酸式和/或碱式盐,也包括两性离子盐(内盐),还包括季铵盐,例如烷基铵盐。这些盐可以是在化合物的最后分离和纯化中直接得到。也可以是通过将上述化合物,或其立体异构体,与一定数量的酸或碱适当(例如等当量)进行混合而得到。这些盐可能在溶液中形成沉淀而以过滤方法收集,或在溶剂蒸发后回收而得到,或在水介质中反应后冷冻干燥制得。本发明中所述盐可以是化合物的盐酸盐、硫酸盐、枸橼酸盐、苯磺酸盐、氢溴酸盐、氢氟酸盐、磷酸盐、乙酸盐、丙酸盐、丁二酸盐、草酸盐、苹果酸盐、琥珀酸盐、富马酸盐、马来酸盐、酒石酸盐或三氟乙酸盐。
在某些实施方式中,本发明的一种或多种化合物可以彼此联合使用。也可选择将本发明的化合物与任何其它的活性试剂结合使用,用于制备调控细胞功能或治疗疾病的药物或药物组合物。如果使用的是一组化合物,则可将这些化合物同时、分别或有序地对受试对象进行给药。
显然,根据本发明的上述内容,按照本领域的普通技术知识和惯用手段,在不脱离本发明上述基本技术思想前提下,还可以做出其它多种形式的修改、替换或变更。
以下通过实施例形式的具体实施方式,对本发明的上述内容再作进一步的详细说明。但不应将此理解为本发明上述主题的范围仅限于以下的实例。凡基于本发明上述内容所实现的技术均属于本发明的范围。
具体实施方式
化合物的结构是通过核磁共振(NMR)和质谱(MS)来确定的。NMR位移(δ)以10-6(ppm)的单位给出。NMR的测定是用(Bruker AvanceIII 400和Bruker Avance 300)核磁仪,测定溶剂为氘代二甲基亚砜(DMSO-d6),氘代氯仿(CDCl3),氘代甲醇(CD3OD),内标为四甲基硅烷(TMS)。
LC-MS的测定使用岛津液质联用仪(Shimadzu LC-MS 2020(ESI))。HPLC的测定使用岛津高压液相色谱仪(Shimadzu LC-20A)。MPLC(中压制备色谱)使用Gilson GX-281反相制备色谱仪。薄层层析硅胶板用烟台黄海HSGF254或青岛GF254硅胶板,薄层层析分离纯化产品采用的规格是0.4mm~0.5mm。柱层析一般使用烟台黄海硅胶200~300目硅胶为载体。超临界流体色谱(SFC)
本发明的已知的起始原料可以采用或按照本领域已知的方法来合成,或可购买于安耐吉化学、成都科龙化工、韶远化学科技、百灵威科技等公司。
实施例中无特殊说明,反应在氮气氛围下进行。实施例中无特殊说明,溶液是指水溶液。实施例中无特殊说明,反应的温度为室温。实施例中无特殊说明,M是摩尔每升。室温为最适宜的反应温度,为20℃~30℃。
实施例1中间体1-5a,1-5b的制备
步骤1中间体1-1的制备
向配备有机械搅拌和氮气保护的10L三口烧瓶中加入THF(3500mL),依次加入邻氯苯甲醛(341g,2.43mol)和硝基乙酸乙酯(323g,2.43mol),随后冰盐浴冷却至內温-10℃,机械搅拌下缓慢滴加TiCl4(920g,4.85mol),滴加时控制內温不超过0℃,滴毕,维持0℃继续反应0.5h,随后逐滴加入N-甲基吗啉(981.51g,9.70mol),滴加时控制內温不超过15℃,滴毕,允许升至室温并搅拌1h,最后加入饱和氯化铵500mL淬灭,乙酸乙酯(1000mL×3)萃取,经饱和食盐水洗涤,无水硫酸钠干燥,过滤,减压浓缩,经硅胶柱层析分离(石油醚/乙酸乙酯100:1)得中间体1-1(580g,2.27mol,93.52%产率)。
步骤2中间体1-2的制备
向配备有机械搅拌和氮气保护的10L三口烧瓶中加入1M的氯化锌四氢呋喃溶液(5.5mol,5.5L),冰浴降温至0℃,缓慢滴加2M的异丙基氯化镁四氢呋喃溶液(5.5mol,2.75L),控制内温低于5℃,滴毕,0-5℃继续反应30分钟。随后,缓慢滴加中间体1-2(702g,2.75mol)的无水THF(500mL)溶液,滴加时控制内温低于5℃,滴毕,0-5℃继续反应1小时。反应完毕,取500g氯化铵配置成饱和水溶液,缓慢加入上述反应液中淬灭反应,乙酸乙酯(5L×2)萃取,合并有机相并水洗,饱和氯化钠水洗,无水硫酸钠干燥,过滤,减压浓缩,粗品经硅胶柱层析分离(石油醚/乙酸乙酯50:1),得到中间体1-2(377g,1.26mol,45.80%产率)。
步骤3中间体1-3的制备
向配备有机械搅拌的10L三口烧瓶加入中间体1-2(730g,2.44mol)和冰醋酸(6L),冰浴降温至0℃,机械搅拌下分批加入锌粉(796.24g,12.18mol),加入时控制內温低于60℃。加毕,继续搅拌反应1小时,反应完毕,抽滤,乙酸乙酯100mL淋洗滤饼,滤液减压浓缩除去冰醋酸,粗品经硅胶柱层析分离纯化(石油醚/乙酸乙酯50:1~10:1)得中间体1-3(对映异构体(2S,3S)和(2R,3R)构型混合物,TLC极性较小的点),黄色粘稠状液体(280g,1.04mol,42.65%产率),MS m/z:270(M+1)+。
步骤4中间体1-4的制备
向中间体1-3(60g,222.41mmol)的四氢呋喃(200mL)和水(100mL)的悬浊液中依次加入碳酸氢钠(37.37g,444.83mmol)和Boc-酸酐(53.34g,244.66mmol),加毕,室温搅拌过夜。反应完毕,加水300mL,乙酸乙酯(300mL×2)萃取,合并有机相,饱和氯化钠水洗,无水硫酸钠干燥,过滤,减压浓缩,粗品经硅胶柱层析分离纯化(石油醚/乙酸乙酯100:1~50:1),得到中间体1-4(39.4g,106.52mmol,47.89%产率),MS m/z:270[M-99]+,314[M-55]+。
步骤5中间体1-5a,1-5b的制备
向中间体1-4(20.00g,54.07mmol)的甲醇(100mL)和水(10mL)的混悬液中加入NaOH(6.49g,162.21mmol),升温至50℃反应3小时,反应完毕,将反应液浓缩,加水100mL,乙酸乙酯(100mL)萃取一次,水相降温至0~5℃,用1M的HCl调pH=3-4,然后乙酸乙酯(100mL)萃取,有机相减压浓缩,得到中间体1-5的一对对映异构体形式(17.8g,52.07mmol,96.30%产率),黄色油状物,该对映异构体经超临界流体色谱(SFC)手性拆分分离制备后分别得到单一手性异构体(2R,3R),1-5b(2S,3S),分别6.5g,MS m/z:242[M-99]+,286[M-55]+。1H NMR(400MHz,Chloroform-d)δ7.41–7.35(m,1H),7.27–7.23(m,2H),7.21–7.15(m,1H),4.90–4.82(m,1H),4.82–4.74(m,1H),3.68–3.56(m,1H),2.19–2.03(m,1H),1.41(s,9H),1.17(d,J=6.4Hz,3H),0.75(d,J=6.7Hz,3H)。其中,(2S,3S)构型的保留时间为2.59min,(2R,3R)构型的保留时间为3.06min(150*3mm,5um,等梯度5%乙醇1mL/min)。(2S,3S)构型的比旋光度为78.18°(25℃,0.089g/100ml于甲醇,波长589nm),(2R,3R)构型的比旋光度为-72.60°(25℃,0.098g/100ml于甲醇,波长589nm)。
实施例2中间体手性氟代氨基酸2-6的制备
步骤1中间体2-2的制备
参照实施例1中间体1-2的制备方法,其它条件不变,由邻氯苯甲醛与异丙烯基溴化镁反应制备得到,收率37%,MS m/z:298(M+1)+。
步骤2中间体2-3的制备
参照实施例1中间体1-3的制备方法,其它条件不变,由锌粉-醋酸体系还原硝基得到,收率85%,MS m/z:268(M+1)+。四个非对映异构体未拆分直接用于下一步。
步骤3中间体2-4的制备
参照实施例1中间体1-4的制备方法,其它条件不变,由Boc酸酐保护氨基得到,MSm/z:368[M+1]+,312[M-55]+。
步骤4中间体2-5的制备
将九水合硝酸铁(439.29mg,1.09mmol)溶解于10ml水中,于0℃下超声脱气10min并氮气保护,随后依次加入10ml乙腈和selectflour(384.92mg,1.09mmol),0℃下再分别将中间体2-4(100mg,271.84μmol)的10ml乙腈溶液和NaBH4(66.84mg,1.77mmol)加至反应液中,2min后,补加NaBH4(66.84mg,1.77mmol),于0℃下继续搅拌30min,反应完毕,加1ml氨水淬灭反应,DCM萃取,有机相用硫酸钠干燥,减压浓缩旋干,粗品经硅胶柱分离纯化(石油醚/乙酸乙酯100:1~50:1)得中间体2-5,(84.2mg,217.6μmol,80.0%产率),MS m/z:388[M+1]+。
步骤5中间体2-6的制备
参照实施例1中间体1-5的制备方法,其它条件不变,由氢氧化钠水解得到中间体2-6,MS m/z:360[M+1]+。
实施例3中间体手性环丙甲基氨基酸3-3a,3-3b的制备
步骤1中间体3-1的制备
实施例2的非对映异构体混合物中间体2-4(四个手性异构体的混合物)经硅胶柱层析分离纯化(石油醚/甲基叔丁基醚100:1)得中间体2-4的一对映异构体(2-4a与2-4b的对映体混合物(2S,3S)和(2R,3R)构型混合物,在TLC板层析上该对映体混合物极性较小),取该对映异构体(1.7g,4.62mmol),氮气保护下,溶于20ml干燥的DCM中,冷却內温至-40℃,加入ZnEt2(1M的四氢呋喃溶液,27.73mL),-30℃搅拌反应1小时后滴加二碘甲烷(9.90g,36.97mmol),滴加时维持內温不高于-20℃,滴毕,允许内温缓慢升至室温并搅拌过夜,LC-MS显示有约30%的起始原料2-4的脱Boc后的副产物,加水5ml淬灭反应,有机相减压浓缩至干,得粗品1g,粗品此时为3-1的脱Boc形式和起始原料2-4的脱Boc后的混合物,将其混合物溶于10mL的THF中,依次加入TEA(897.78mg,8.87mmol,1.24mL)和(Boc)2O(1.16g,5.32mmol),于室温搅拌过夜,减压浓缩至干,粗品经硅胶柱分离纯化(石油醚/甲基叔丁基醚100:3)得Boc保护的环丙甲基乙酯3-1粗品和前一步未反应完的中间体2-4的混合物0.5g,将该粗品溶于四氢呋喃(5mL)和乙腈(5mL)及5mL水的混合液中,加入二水合锇酸钾(44.3mg,0.12mmol)和N-甲基-N-氧化吗啉(111mg,0.96mmol),通过双键双羟化除去未反应的2-4,室温搅拌过夜,LC-MS监测显示已无未反应的中间体2-4,减压浓缩除去大部分有机溶剂,乙酸乙酯15ml萃取,有机相浓缩,粗品经硅胶柱层析分离纯化(石油醚/乙酸乙酯20:1)得中间体3-1(0.5g,1.31mmol,28%产率),MS m/z:382[M+1]+.
步骤2中间体3-2的制备
参照实施例1中间体1-5的制备方法,其它条件不变,由3-1氢氧化钠水解得到,MSm/z:298[M-55]+。
步骤3中间体3-3a,3-3b的制备
中间体3-2(一对映体混合物)经SFC手性柱拆分分离制备后可分别得到单一手性异构体3-3a(2R,3R),3-3b(2S,3S)。其中(2S,3S)构型的保留时间为5.904min,(2R,3R)构型的保留时间为3.306min(150*3mm,5um,等梯度5%乙醇1mL/min)。(2S,3S)构型的的比旋光度为48.755°(25℃,0.1g/100ml于甲醇,波长589nm),(2R,3R)构型的的比旋光度为-40.695°(25℃,0.1g/100ml于甲醇,波长589nm)。
实施例4中间体邻苯二胺4-10的制备
步骤1中间体4-1的制备
向对硝基苯乙酸乙酯(23g,109.94mmol)的DMSO(100mL)溶液中加入四甲基甲烷二胺(16.85g,164.92mmol),反应液于室温下搅拌2小时,TLC跟踪原料消失,反应液倾入500mL水中,乙酸乙酯(500mL*2)萃取,合并有机相,饱和食盐水洗,无水硫酸钠干燥,抽滤,滤液减压浓缩至干,粗品经硅胶柱层析分离纯化(石油醚/甲基叔丁基醚1000:1)得到中间体30-1(18g,73.23mmol,66.61%产率),LC-MS响应不出该中间体MS值,直接用于下一步。
步骤2中间体4-2的制备
向配备有机械搅拌的500mL三口烧瓶加入中间体4-2 18g,81.37mmol)和冰醋酸(180mL),冰浴降温至0℃,机械搅拌下分批加入锌粉(52.08g,813.71mmol),加入时控制內温低于60℃。加毕,继续搅拌反应1小时,反应完毕,抽滤,乙酸乙酯100mL淋洗滤饼,滤液减压浓缩除去冰醋酸,粗品乙酸乙酯500ml稀释,饱和食盐水洗,无水硫酸钠干燥,抽滤,滤液减压浓缩至干,得中间体4-2的粗品(8g,37.65mmol,46.27%产率),MS m/z:192(M+1)+,未经纯化直接用于下一步。
步骤3中间体4-3的制备
室温氮气保护下,向中间体4-2粗品(12g,62.75mmol)的120ml二氯甲烷溶液中加入三乙胺(19.05g,188.26mmol,26.26mL),乙酰氯(7.34g,94.13mmol)缓慢滴加其中,滴毕,反应继续室温搅拌1小时,向反应液中加入冷的饱和氯化铵水溶液(100mL),有机相再经饱和食盐水洗,无水硫酸钠干燥,抽滤,滤液减压浓缩至干,粗品经硅胶柱层析分离纯化(石油醚/乙酸乙酯40:1)得到中间体4-3(7.2g,27.78mmol,44.27%产率),MS m/z:234[M+1]+。
步骤4中间体4-4的制备
室温下,向中间体4-3(7.2g,30.87mmol)的5ml四氢呋喃溶液中加入LiOH(2.22g,92.60mmol)的1ml水溶液,滴毕,反应于60℃搅拌12小时,反应液经1N HCl调pH~2-3,乙酸乙酯萃取(50ml*3),合并有机相,再经饱和食盐水洗,无水硫酸钠干燥,抽滤,滤液减压浓缩至干,得到中间体4-4(3.2g,13.25mmol,42.94%产率),MS m/z:206[M+1]+,未经纯化直接用于下一步。
步骤5中间体4-5的制备
将中间体4-4(3.2g,15.59mmol)溶于DCM(30mL),冰浴下加入HBTU(8.89g,23.39mmol)和DIPEA(6.05g,46.78mmol,8.15mL),搅拌15min后,加入2-氨基-4-戊烯酸乙酯(2.23g,15.59mmol),随后反应转至室温下反应2小时,反应液减压除去发部分有机溶剂,加水和乙酸乙酯(50ml*3)萃取,合并有机相,饱和食盐水洗,无水硫酸钠干燥,抽滤,滤液减压浓缩至干,粗品经硅胶柱层析分离纯化(二氯甲烷/甲醇50:1)得到中间体4-5(1.8g,4.90mmol,31.45%产率),MS m/z:331[M+1]+.
步骤6中间体4-6的制备
将中间体4-5(1.8g,5.45mmol)溶于1,2-二氯乙烷(5ml)中,室温下加入Grabbs(二代)(2.31g,2.72mmol)催化剂,氮气保护反应2小时,LC-MS监测反应完毕,抽滤,滤液减压浓缩,粗品经硅胶柱层析分离纯化(石油醚/乙酸乙酯100:1)得到中间体4-6(0.6g,1.79mmol,32.78%产率),MS m/z:303[M+1]+.
步骤7中间体4-7的制备
将中间体4-6(0.8g,2.65mmol)溶于5ml甲醇中,氮气氛下加入10%Pd/C(0.3g)催化剂,氢气置换后于常压氢化反应2小时,LC-MS监测反应完毕,经硅藻土抽滤,滤液减压浓缩,得到中间体4-7(0.6g,1.79mmol,32.78%产率),MS m/z:305[M+1]+.
步骤8中间体4-8的制备
将中间体4-7(0.35g,1.15mmol)溶于醋酐(10mL)中,冷却至0℃,并搅拌15min,缓慢滴加HNO3(362.32mg,5.75mmol,68%质量分数),滴毕,反应继续搅拌1小时,原料消失,将反应液倾入冰水中,乙酸乙酯(2*50mL)萃取,合并有机相,经饱和食盐水洗涤,无水硫酸钠干燥,过滤,减压浓缩至干得到中间体4-8粗品(210mg,541.02μmol,47.04%产率),MS m/z:350[M+1]+,未经纯化直接用于下一步。
步骤9中间体4-9的制备
将中间体4-8粗品(0.2g,572.51μmol)溶于5ml乙醇中,缓慢加入氯化亚砜(340.56mg,2.86mmol,207.66μL),加热至50℃搅拌2小时,LC-MS显示原料消失,反应液减压浓缩至干,加入H2O(10mL),用1N NaOH调pH值~10-11,水相再经乙酸乙酯(2*100mL)萃取,合并有机相,无水硫酸钠干燥,过滤,减压浓缩至干,得到中间体4-9粗品(0.14g,410.02μmol,71.62%产率),MS m/z:308[M+1]+,未经纯化直接用于下一步。
步骤10中间体4-10的制备
将中间体4-9(0.14g,455.58μmol)溶于5ml乙醇中,氮气氛下加入10%Pd/C(55mg)催化剂,氢气置换后于常压氢化反应2小时,LC-MS监测反应完毕,经硅藻土抽滤,滤液减压浓缩,MPLC C18反相柱纯化得到中间体4-10(0.12g,389.44μmol,85.48%产率),MS m/z:278[M+1]+.
实施例5中间体邻苯二胺5-13的制备
步骤1中间体5-1的制备
将(2R)-2-氨基-4-羟基-丁酸(10g,83.95mmol)悬浮于EtOH(100mL)和H2O(50mL)中,随后加入(Boc)2O(19.22g,88.15mmol)和NaOH(3.36g,83.95mmol),室温搅拌过夜,减压旋干即可得到粗品中间体5-1(18g,82.10mmol,97.80%产率),MS m/z:220[M+1]+,未经纯化直接用于下一步。
步骤2中间体5-2的制备
冰浴下,将NaH(7.4g,184.80mmol,60%质量分数)分批加至中间体5-1(13.51g,56mmol)的DMF(200mL)溶液中,20min后,加入3-苄氧基溴丙烷(15.40g,67.20mmol),加毕,室温下反应1小时,加水淬灭,1N HCl调pH~5,乙酸乙酯萃取,干燥,过滤,减压旋干即可得到中间体5-2,(13g,35.38mmol,63.18%产率),MS m/z:268[M-99]+。
步骤3中间体5-3的制备
将中间体5-2(13g,35.38mmol)溶于DMF(100mL),加入K2CO3(7.32g,53.07mmol),冰浴下缓慢滴加碘甲烷(7.93g,55.90mmol),滴毕,转至室温反应1小时,加水淬灭,乙酸乙酯萃取,减压浓缩,硅胶柱层析分离纯化(石油醚/乙酸乙酯5:1)即可得到中间体5-3(4g,10.49mmol,29.64%产率),MS m/z:282[M-99]+。
步骤4中间体5-4的制备
将中间体5-4(4g,10.49mmol)溶于100ml甲醇和20ml乙酸中,氮气氛下加入10%Pd(OH)2(0.4g)催化剂,氢气置换后于常压氢化反应12小时,LC-MS监测反应完毕,经硅藻土抽滤,滤液减压浓缩,得到中间体5-5(2.8g,9.61mmol,91.65%产率),MS m/z:192[M-99]+.
步骤5中间体5-5的制备
冰浴下,向中间体5-4(2.91g,0.01mol)的DCM(30mL)溶液中,加入DIPEA(3.88g,30.00mmol,5.23mL),搅拌20min,随后加入甲磺酰氯(2.06g,18.00mmol),0℃反应1h,加水淬灭,乙酸乙酯萃取,干燥,减压浓缩可得到中间体5-5(3.4g,9.20mmol,92.03%产率),MSm/z:270[M-99]+.
步骤6中间体5-6的制备
将中间体5-5(2.96g,0.008mol),NaI(3.60g,24.00mmol)加至丙酮(100mL)中,回流过夜,加水淬灭,乙酸乙酯萃取,干燥,减压浓缩可得到中间体5-6(3g,7.48mmol,93.46%产率),MS m/z:302[M-99]+.
步骤7中间体5-7的制备
将中间体5-6(2.7g,6.73mmol)加入DMF(20mL)中,加入2-对硝基苯基-丙酸叔丁酯(1.7g,6.73mmol),室温搅拌3h,减压浓缩,粗品经硅胶柱层析分离纯化即可得到中间体5-7(3.2g,6.10mmol,90.65%产率),MS m/z:425[M-99]+.
步骤8中间体5-8的制备
将中间体5-7(1g,1.91mmol)加至DCM(5mL)和TFA(5mL)混合溶液中,室温搅拌3h,减压旋干即可得到中间体5-8的粗品(0.69g,1.87mmol,98.26%产率),MS m/z:369[M+1]+.步骤9中间体5-9的制备
将中间体5-8的粗品(702mg,1.91mmol)加至DCM(3500mL),随后加入HBTU(967.57mg,2.55mmol),DIPEA(985.14mg,7.62mmol,1.33mL),于30℃反应24h,减压旋干,MPLC纯化即可得到中间体5-9的粗品(0.3g,856.25μmol,44.93%产率),MS m/z:351[M+1]+.
步骤10中间体5-10的制备
将中间体5-9(0.26g,811.53μmol)加至Ac2O(2mL)中,室温反应1h,减压旋干即可得到中间体5-10(0.28g,772.59μmol,95.20%产率),MS m/z:363[M+1]+.
步骤11中间体5-11的制备
将中间体5-10(0.28g,772.59μmol)加至Ac2O(5mL)中,室温下滴加HNO3(146.04mg,2.32mmol),室温反应7h,加水淬灭,加入饱和碳酸钠调pH至中性,DCM萃取,减压旋干,MPLC纯化即可得到中间体5-11(0.1g,245.45μmol,31.77%产率),MS m/z:408[M+1]+.
步骤12中间体5-12的制备
将中间体5-11(0.1g,245.45μmol)加至MeOH(3mL)中,缓慢加入二氯亚砜(146.01mg,1.23mmol,89.03μL),50℃反应1h,加水淬灭,减压旋干,加入饱和碳酸钠洗涤,DCM萃取,减压旋干即可得到中间体5-12(80mg,218.95μmol,89.20%产率),MS m/z:366[M+1]+.步骤13中间体5-13的制备
将中间体5-12(80mg,218.95μmol)加至MeOH(20mL)中,氮气氛下加入10%Pd/C(80mg),氢气置换后,于1atm氢气氛下室温反应7h,经硅藻土过滤,滤液减压旋干即可得到中间体5-13(70mg,208.71μmol,95.32%产率),MS m/z:336[M+1]+.
实施例6化合物6a,6b的制备
步骤1中间体6-1的制备(混合物形式)
将实施例1中步骤5中间体1-5b(177.50mg,519.26μmol,SFC手性拆分得到的一单一手性异构体),EDCI(99.18mg,519.26μmol),DIPEA(167.77mg,1.30mmol,226.11μL),HOAt(293.42mg,2.16mmol)及实施例4中步骤10中间体邻苯二胺4-10(0.12g,432.72μmol)依次加入到DCM(10mL)中,室温反应2小时,加水淬灭,减压除去大部分有机溶剂,乙酸乙酯(20ml*3)萃取,合并有机相,再分别饱和氯化铵和饱和食盐水洗,无水硫酸钠干燥,减压旋干,粗品经硅胶柱层析纯化分离(二氯甲烷/甲醇50:1)即可得到中间体6-1的结构异构体混合物(78mg,116.78μmol,26.99%产率),MS m/z:601(M+1)+,二者不用分离并用于下一步。
步骤2中间体6-2的制备
将步骤2所得中间体6-1的结构异构体混合物(76mg,126.43μmol)加至AcOH(5mL)中,55℃反应12h,减压浓缩旋干,硅胶柱层析分离纯化(二氯甲烷/甲醇50:1)得到中间体6-2(50mg,77.17μmol,61.04%产率),MS m/z:583(M+1)+。
步骤3中间体6-3的制备
将步骤2所得中间体6-2(50mg,77.17μmol)溶于DCM(3mL)中,冰浴下滴加TFA(3mL),冰浴下继续搅拌反应2h,旋干即可得到中间体6-3的粗品(40mg,74.53μmol,86.92%产率),MS m/z:483(M+1)+,未经纯化直接用于下一步反应。
步骤4中间体6-4的制备
将HBTU(47.20mg,124.22μmol),DIPEA(32.11mg,248.45μmol,43.27μL),依次加至1-甲基-1H-吡唑-5-羧酸(15.67mg,124.22μmol)的DCM(5mL)溶液中,15min后加入步骤3所得中间体6-3(40mg,82.82μmol),室温反应2h,加水淬灭,乙酸乙酯(20ml*3)萃取,合并有机相,再分别饱和氯化铵和饱和食盐水洗,无水硫酸钠干燥,减压旋干,粗品经硅胶柱层析纯化分离(二氯甲烷/甲醇50:1)即可得到中间体6-4(47mg,71.56μmol,86.41%产率),MS m/z:591(M+1)+。
步骤5中间体6-5的制备
向中间体6-4(0.07g,124.10μmol)的EtOH(1mL)中加入NaOH(14.89mg,372.29μmol),于60℃反应12小时,LC-MS显示原料已反应完毕,经1N HCl调pH~4,乙酸乙酯(10ml*3)萃取,合并有机相,经饱和食盐水洗,无水硫酸钠干燥,过滤,减压浓缩得到中间体6-5的粗品(50mg,83.95μmol,67.65%产率),MS m/z:563[M+1]+,未经纯化直接用于下一步反应。
步骤6化合物6a,6b的制备
将HBTU(50.62mg,133.20μmol),DIPEA(34.43mg,266.41μmol,46.40μL)依次加至步骤5中间体6-5(50mg,88.80μmol)的DCM(5mL)溶液中,15min后加入甲胺盐酸盐(6mg,88.8μmol),室温反应1h,加10mL水淬灭,减压除去大部分有机溶剂,乙酸乙酯(10ml*3)萃取,合并有机相,再分别饱和氯化铵和饱和食盐水洗,无水硫酸钠干燥,减压旋干,粗品硅胶柱层析分离纯化(二氯甲烷/甲醇50:1)即可得到化合物6b(1.22mg,1.73μmol,1.95%产率),MSm/z:576(M+1)+。
类似地,以实施例1中步骤5中间体1-5a与施例4中步骤10中间体邻苯二胺4-10经缩合,关环,脱Boc,引入1-甲基-1H-吡唑-5-酰基,水解,最后与甲胺缩合,其它条件不变,即可得到化合物6a,MS m/z:576(M+1)+。
化合物6b的核磁为:1HNMR(400MHz,MeOD):δppm 7.59-7.74(m,3H),7.43-7.51(m,2H),7.37-7.39(m,1H),7.29-7.34(m,1H),6.69-6.70(m,1H),6.12-6.14(m,1H),4.16-4.18(m,2H),3.99-4.00(m,3H),3.84-3.88(m,1H),2.80-2.84(m,3H),1.90-2.29(m,5H),1.09-1.19(m,3H),1.00-1.04(m,1H),0.86-0.88(d,J=6.4Hz,3H).
实施例7化合物7a,7b的制备
步骤1中间体7-1的制备(混合物形式)
参照实施例6的步骤1方法,其它条件不变,由实施例1步骤5中间体1-5b与实施例5步骤13中间体5-13缩合即可得到中间体7-1的结构异构体混合物,MS m/z:659(M+1)+。
步骤2中间体7-2的制备
参照实施例6的步骤2方法,其它条件不变,由中间体7-1的结构异构体混合物在冰醋酸中关咪唑环即可得到中间体7-2,MS m/z:641(M+1)+。
步骤3中间体7-3的制备
参照实施例6的步骤3方法,其它条件不变,由中间体7-2在三氟乙酸中脱Boc保护即可得到中间体7-3,MS m/z:541(M+1)+。
步骤4中间体7-4的制备
参照实施例6的步骤4方法,其它条件不变,由中间体7-3与1-甲基-1H-吡唑-5-羧酸缩合即可得到中间体7-4,MS m/z:649(M+1)+。
步骤5中间体7-5的制备
参照实施例6的步骤5方法,其它条件不变,由中间体7-4经碱水解即可得到中间体7-5,MS m/z:635(M+1)+。
步骤6化合物7a,7b的制备
参照实施例6的步骤6方法,其它条件不变,由中间体7-5与乙胺缩合即可得到化合物7b,MS m/z:662(M+1)+。
类似地,以实施例1中步骤5中间体1-5a与实施例5步骤13中间体5-13经缩合,关环,脱Boc,引入1-甲基-1H-吡唑-5-酰基,水解,最后与乙胺缩合,其它条件不变,即可得到化合物7a,MS m/z:576(M+1)+。
化合物7b的核磁为:1H NMR(400MHz,MeOD)7.64–7.51(m,3H),7.42–7.34(m,3H),7.25(t,J=8.0Hz,2H),6.47(s,1H),6.00(d,J=9.6Hz,1H),4.63-4.58(m,1H),4.25(d,J=5.6Hz,1H),3.99(s,1H),3.93(s,3H),3.79–3.68(m,1H),3.49-3.42(m,1H),3.37–3.27(m,5H),3.09(dd,J=13.2,6.0Hz,1H),2.82-2.68(m,1H),2.27(dd,J=14.4,6.4Hz,1H),2.12–1.88(m,2H),1.68-1.60(m,1H),1.50(s,3H),1.31(s,1H),1.19(t,J=7.2Hz,1H),1.08–0.88(m,8H).
实施例8化合物8的制备
步骤1中间体8-1的制备(混合物形式)
参照实施例6的步骤1方法,其它条件不变,由实施例2步骤5中间体2-6的(S,S)构型与实施例4步骤10中间体4-10缩合即可得到中间体8-1的结构异构体混合物,MS m/z:619(M+1)+。
步骤2中间体8-2的制备
参照实施例6的步骤2方法,其它条件不变,由中间体8-1的结构异构体混合物在冰醋酸中关咪唑环即可得到中间体8-2,MS m/z:601(M+1)+。
步骤3中间体8-3的制备
参照实施例6的步骤3方法,其它条件不变,由中间体8-2在三氟乙酸中脱Boc保护即可得到中间体8-3,MS m/z:501(M+1)+。
步骤4中间体8-4的制备
参照实施例6的步骤4方法,其它条件不变,由中间体8-3与1-甲基-1H-吡唑-5-羧酸缩合即可得到中间体8-4,MS m/z:609(M+1)+。
步骤5中间体8-5的制备
参照实施例6的步骤5方法,其它条件不变,由中间体8-4经碱水解即可得到中间体8-5,MS m/z:581(M+1)+。
步骤6化合物8的制备
参照实施例6的步骤6方法,其它条件不变,由中间体8-5与乙胺缩合即可得到化合物8,MS m/z:594(M+1)+。
实施例9化合物9的制备
参照实施例6的步骤1-6方法,由实施例2步骤5中间体2-6与实施例5步骤13中间体5-13经缩合,关环,脱Boc,引入1-甲基-1H-吡唑-5-酰基,水解,最后与乙胺缩合,其它条件不变,即可得到化合物9,MS m/z:680(M+1)+。
实施例10化合物10的制备
参照实施例6的步骤1-6方法,由中间体3-3b与实施例4步骤10中间体4-10经缩合,关环,脱Boc,引入1-甲基-1H-吡唑-5-酰基,水解,最后与甲胺缩合,其它条件不变,即可得到化合物10,MS m/z:588(M+1)+。
实施例11化合物11的制备
参照实施例6的步骤1-6方法,由中间体3-3b与实施例5步骤13中间体5-13经缩合,关环,脱Boc,引入1-甲基-1H-吡唑-5-酰基,水解,最后与乙胺缩合,其它条件不变,即可得到化合物11,MS m/z:674(M+1)+。
为了说明本发明的有益效果,本发明提供以下试验例。
试验例1IL-17酶联免疫吸附测定(ELISA)实验
通过竞争性ELISA对IL-17A抑制剂对受体-配体结合的抑制情况进行了定量检测。将0.2μg/mL IL-17A(Sino Biological lnc.Cat#12047-H07B)以100μL(50mM磷酸盐缓冲液,pH 7.4)每孔在96孔板中37度孵育30分钟。用PBST(PBS,0.05%Tween-20)洗板4次,每次200μL每孔,加入200μL 5%脱脂牛奶于25度摇床上孵育30分钟。准备100X浓度待测化合物,终浓度从0.0002μM到30μM。用PBST(PBS,0.05%Tween-20)洗板4次后加入89μL PBST和1μL100X浓度待测化合物混匀后于25度预孵育10分钟。加入10μL 16nM IL-17R(SinoBiological lnc.Cat#10895-H03H)于25度摇床上孵育30分钟。洗板4次后,加入100μL抗Fc标签HRP偶联抗体(Sino Biological lnc.Cat#10702-T16-H-50)于25度摇床上孵育30分钟。洗板4次后,加入100μL TMB底物溶液25度避光孵育。加入100μL 2.5M HCl后,采用酶标仪于450nm波长检测光吸收值。
按照上述方法对实施例制备的化合物进行去IL-17A抑制活性检测,试验结果见表1,其中测定各化合物的IC50按照说明分类,表1中:
“+”表示IC50测定值小于100μM大于1μM;
表1、化合物对IL-17A的抑制活性
实施例 | IC<sub>50</sub> | 实施例 | IC<sub>50</sub> |
6a | + | 9 | + |
6b | + | 10 | + |
7a | + | 11 | + |
7b | + | ||
8 | + |
试验表明,本发明实施例的化合物具有良好的IL-17A抑制活性,可以有效用于与IL-17A活性异常疾病的治疗。
综上所述,本发明公开的式I所示的新化合物,表现出了良好的IL-17A抑制活性,为临床治疗与IL-17A活性异常相关的疾病提供了一种新的药用可能。
Claims (6)
2.根据权利要求1所述的化合物,其特征在于:L选自-C1~6亚烷基-时,其中亚烷基中的碳原子可被氧原子替换。
4.权利要求1-3任一项所述的化合物或其药学上可接受的盐在制备治疗IL-17A介导的疾病的药物中的用途。
5.权利要求4所述的用途,其特征在于:所述IL-17A介导的疾病是与炎症、自身免疫性疾病、感染性疾病、癌症、癌前期综合征相关的疾病中的一种或几种。
6.一种药物组合物,其特征在于:它是以权利要求1~3任一项所述的化合物或其药学上可接受的盐,加上药学上可接受的辅料制备而成的制剂。
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