The present invention provides .alpha.-methylthio-.alpha.-(p-phthalimidophenyl)-propionic acid and its esters of the formula: ##STR1## wherein R' represents H or C.sub.1 -C.sub.4 alkyl. The subject compounds are useful as intermediates e.g. for Indoprofen.
本发明提供了α-甲基
硫代-α-(p-邻苯二甲酰亚
氨基苯基)-
丙酸及其酯的
化学式:##STR1## 其中R'代表H或C.sub.1-C.sub.4烷基。该化合物可用作中间体,例如用于制备印托芬。