Process for the production of isoindoline derivatives, novel intermediates and process for their production
申请人:Banyu Pharmaceutical Co., Ltd.
公开号:EP0275064A2
公开(公告)日:1988-07-20
A process for producing a compound of the formula:
wherein R¹ is a hydrogen atom, a lower alkyl group or an aralkyl group, and R² is a hydrogen atom or a hydroxyl-protecting group, or a salt thereof, which comprises removing from a compound of the formula:
wherein R³ is a hydrogen atom or a hydroxyl-protecting group, R⁴ and R⁵ which may be the same or different are N-protecting groups selected from the group consisting of lower alkyl groups and aralkyl groups, and X⊖ is an anion, the N-protecting group(s), if necessary, together with the hydroxyl-protecting group.
一种生产式化合物的工艺:
其中R¹为氢原子、低级烷基或芳烷基,R²为氢原子或羟基保护基,或其盐的工艺,包括从式化合物中除去
其中 R³ 是氢原子或羟基保护基团,R⁴ 和 R⁵ 可以相同或不同,是选自由低级烷基和芳烷基组成的组的 N 保护基团,X⊖ 是阴离子。