The present invention relates to an improved process for the preparation of antidiabetic compounds having the formula (1). where R represents (C1-C6)alkyl group, X represents sulphur or oxygen atom
本发明涉及一种改进的制备抗糖尿病化合物的方法,其
化学式为(1),其中R代表(C1-C6)烷基基团,X代表
硫或氧原子。