申请人:BANYU PHARMACEUTICAL CO., LTD.
公开号:EP0227986A1
公开(公告)日:1987-07-08
A compound having the formula:
wherein R is a hydrogen atom, a lower alkyl group, an alkanoyl group, an aralkyl group, an alkylsulfonyl group or an arylsulfonyl group, and R¹ is a hydrogen atom or a protecting group for a hydroxyl group, or a salt thereof.
具有以下式子的化合物
其中 R 是氢原子、低级烷基、烷酰基、芳烷基、烷基磺酰基或芳基磺酰基,R¹ 是氢原子或羟基的保护基,或其盐。