申请人:TAIHO PHARMACEUTICAL CO., LTD.
公开号:US09346787B2
公开(公告)日:2016-05-24
A novel compound which has an excellent aurora A-selective inhibitory action and is useful as an orally administrable anticancer agent is provided. Also, a novel agent for potentiation of anti-tumor effect of microtubule agonists, which include a taxane anticancer agent, and a combination therapy are provided. A piperidine compound represented by a general formula (I) or a salt thereof:
wherein, R1 represents a carboxyl group, —C(═O)NR5R6, or an oxadiazolyl group optionally having a C1-C6 alkyl group or a trifluoromethyl group as a substituent;
R2 represents a halogen atom or a C1-C6 alkoxy group;
R3 represents a phenyl group optionally having 1 to 3 same or different group(s) selected from a halogen atom, a C1-C6 alkyl group, a C1-C6 alkoxy group, and a trifluoromethyl group as a substituent;
R4 represents a hydrogen atom or a C1-C6 alkyl group; and
R5 and R6 are the same or different and each represent a hydrogen atom, a C1-C6 alkyl group, or a C3-C6 cycloalkyl group, or R5 and R6 optionally form a 3 to 6-membered nitrogen-containing saturated heterocyclic group together with a nitrogen atom to which R5 and R6 are bound, are provided.
本发明提供了一种新型化合物,具有优异的Aurora A选择性抑制作用,可用作口服抗癌剂。同时,还提供了一种新型的增强微管蛋白激动剂的抗肿瘤作用的药物,其中包括紫杉醇类抗癌药物和联合治疗。该化合物为吡啶基化合物,由通式(I)或其盐表示:其中,R1代表羧基,-C(═O)NR5R6或取代基为C1-C6烷基或三氟甲基的噁二唑基;R2代表卤素原子或C1-C6烷氧基;R3代表苯基,其取代基为1到3个相同或不同的基团,选自卤素原子、C1-C6烷基、C1-C6烷氧基和三氟甲基基团;R4代表氢原子或C1-C6烷基;R5和R6相同或不同,每个代表氢原子、C1-C6烷基或C3-C6环烷基,或R5和R6可与R5和R6结合形成一个3到6成员的含氮饱和杂环基团,其中一个氮原子与R5和R6结合。