申请人:Takeda Chemical Industries, Ltd.
公开号:EP1193258A1
公开(公告)日:2002-04-03
The present invention provides an industrially advantageous production method of compound (V) having a steroid C17,20 lyase inhibitory action, which affords this compound in a high yield with a less number of steps without using a heavy metal compound:
wherein ring A is an optionally substituted imidazole ring, R is an optionally substituted hydrocarbon group or a heterocyclic group, and R1, R2, R3, R4, R5, R6 and R7 are each a hydrogen atom, an optionally substituted hydrocarbon group, OH, SH or NH2, an acyl group or a halogen and the like.
本发明提供了一种在不使用重金属化合物的情况下,以较少的步骤高产率地制备具有类固醇C17,20裂解酶抑制作用的化合物(V)的工业上有利的生产方法:其中环A是一个可选择取代的咪唑环,R是一个可选择取代的碳氢化合物基团或杂环基团,R1、R2、R3、R4、R5、R6和R7分别是氢原子、可选择取代的碳氢化合物基团、羟基、硫氢基或氨基、酰基或卤素等。