and salts thereof wherein n is an integer from 1 to 5, X is a chalcogen and R is hydrogen or lower alkyl and methods of preparation. The derivatives are useful for treating or preventing diabetic complications.
及其盐类,其中 n 为 1 至 5 的整数,X 为
查耳酮,R 为氢或低级烷基,以及制备方法。 这些衍
生物可用于治疗或预防糖尿病并发症。