Piperidine-2, 6-dione derivatives and their use as tumor necrosis factor inhibitors
申请人:Tianjin Hemay Bio-Tech Co., Ltd.
公开号:US10166222B2
公开(公告)日:2019-01-01
This invention is directed to derivatives of piperidine-2,6-dione, or their organic or inorganic salts thereof, a methods of synthesis of these derivatives, and their application as active pharmaceutical ingridient as inhibitors of TNFα releasing in cells, the derivative of piperidine-2,6-dione being of the general formula (I):
wherein n represents 1, 2, 3, 4, 5 or 6; R1 represents from one to four of the same or different substituents selected from F, Cl, Br, C1-4 alkyl, OH, OC1-4 alkyl, NO2, NHC(O)C1-4 alkyl, NH2, NH(C1-4 alkyl), N(C1-4 alkyl)2; R2 represents OR3, NR3R4, N(R3)COR4, O2CR5; R3 and R4 represent independently and at each occurrence H or C1-4 alkyl; R5 represents CHR6NR7R8, CHR6NR9C(O)CHR10NR7R8, a heterocycle W or CHR6NR9C(O)W; R6, R9, R10 represent independently and at each occurrence H, or C1-4 alkyl; R7 and R8 represent independently and at each occurrence H, C1-4 alkyl, or R7 and R8 taken together represent 1,3-propylene, 1,4-butylene, 1,5-pentylene , or 1,6-hexylene; W represents four-membered, five-membered, six-membered, seven-membered, or eight-membered saturated or unsaturated heterocycle.
本发明涉及哌啶-2,6-二酮的衍生物,或它们的有机盐或无机盐,这些衍生物的合成方法,以及它们作为抑制细胞中 TNFα 释放的活性药物锭剂的应用,哌啶-2,6-二酮的衍生物为通式 (I):
其中 n 代表 1、2、3、4、5 或 6;R1 代表 1 至 4 个相同或不同的取代基,选自 F、Cl、Br、C1-4 烷基、OH、OC1-4 烷基、NO2、NHC(O)C1-4 烷基、NH2、NH(C1-4 烷基)、N(C1-4 烷基)2;R2 代表 OR3、NR3R4、N(R3)COR4、O2CR5;R3 和 R4 独立地且在每次出现时代表 H 或 C1-4 烷基;R5 代表 CHR6NR7R8、CHR6NR9C(O)CHR10NR7R8、杂环 W 或 CHR6NR9C(O)W;R6、R9、R10 独立地且在每次出现时代表 H 或 C1-4 烷基;R7 和 R8 独立地且在每次出现时代表 H、C1-4 烷基,或 R7 和 R8 合在一起代表 1,3-丙烯、1,4-丁烯、1,5-戊烯或 1,6-己烯;W 代表四元、五元、六元、七元或八元饱和或不饱和杂环。