申请人:Abbott Laboratories
公开号:US05693813A1
公开(公告)日:1997-12-02
A process for the preparation of a compound having the formula: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, and R.sup.5 are defined, from an enamine by chain expansion and ring closure followed by additional derivatization, treatment with a 3-alkoxyl-acryloyl compound, another ring closure, and converting a hydroxyl group to a leaving group.
一种制备具有以下结构式的化合物的方法:其中R.sup.1、R.sup.2、R.sup.3、R.sup.4和R.sup.5已被定义,通过从恩酮进行链扩展和环闭合,然后进行额外衍生化处理,与3-烷氧基-丙烯酰基化合物反应,再进行另一环闭合,并将羟基转换为离去基团。