申请人:Banyu Pharmaceutical Co., Ltd.
公开号:US04987235A1
公开(公告)日:1991-01-22
A compound having the formula: ##STR1## wherein R is a hydrogen atom, a lower alkyl group, an alkanoyl group, an aralkyl group, an alkylsulfonyl group or an arylsulfonyl group, and R.sup.1 is a hydrogen atom or a protecting group for a hydroxyl group, or a salt thereof.
一种具有以下化学式的化合物:##STR1## 其中R是氢原子、低碳烷基基团、烷酰基、芳基烷基基团、烷基磺酰基或芳基磺酰基,R.sup.1是氢原子或羟基的保护基,或其盐。