申请人:Eisai Chemical Co., Ltd.
公开号:US05428173A1
公开(公告)日:1995-06-27
A process is provided for the preparation of an aminothiadiazolylacetyl halide derivative represented by the following formula (II): ##STR1## wherein R.sup.1 represents a lower alkyl, cycloalkyl or halogenated lower alkyl group; and R.sup.2 represents an amino-protecting group or a hydrogen atom, or a salt thereof, which process uses as the starting material a compound represented by the following formula (I): ##STR2## wherein R.sup.1 and R.sup.2 have the same meanings as defined above, or a salt thereof.
提供了一种制备如下式(II)所示的氨基噻二唑基乙酰卤代衍生物的方法: ##STR1## 其中R1代表低级烷基、环烷基或卤代低级烷基;R2代表氨基保护基或氢原子,或其盐,该方法使用如下式(I)所示的化合物作为起始原料: ##STR2## 其中R1和R2具有如上定义的相同含义,或其盐。