申请人:Yamasa Shoyu Kabushiki Kaisha
公开号:EP0331080A2
公开(公告)日:1989-09-06
Disclosed are imidazole derivatives represented by formula [I]:
wherein R is a hydrogen atom or
wherein R² is a hydrogen atom or a hydroxy protecting group, R² protecting either a single hydroxy or two hydroxies together when R² is a hydroxy protecting group, and R³ is a hydrogen atom or OR²; A is CONH₂ or CN; and R¹ is a hydrogen atom, lower alkyl, hydroxy lower alkyl, or phenyl.
Also disclosed are six processes for producing these novel compounds among which a typical process comprises reacting a starting imidazole compound having a halogen at the 5-position thereof with an acetylene derivative to alkynylate the 5-position.
Furthermore, the compounds have remarkable antitumor activities and therefore can provide novel antitumor agents.
公开了由式[I]代表的咪唑衍生物:
其中 R 是氢原子或
其中 R² 是氢原子或羟基保护基,当 R² 是羟基保护基时,R² 保护单个羟基或两个羟基,R³ 是氢原子或 OR²;A 是 CONH₂ 或 CN;R¹ 是氢原子、低级烷基、羟基低级烷基或苯基。
此外,还公开了六种生产这些新型化合物的工艺,其中一种典型的工艺包括将 5 位上有卤素的咪唑化合物与乙炔衍生物反应,使 5 位上的卤素炔化。
此外,这些化合物具有显著的抗肿瘤活性,因此可以提供新型抗肿瘤药物。