The present invention relates to an improved process for the preparation of novel antidiabetic compounds having formula (1) where R
1
represents hydrogen or lower alkyl group and X represents hydrogen or halogen atom.
1
本发明涉及一种改进的制备新型抗糖尿病化合物的方法,其
化学式为(1),其中R1代表氢或较低的烷基团,X代表氢或卤素原子。