Compounds of formula I ##STR1## and their salts in which n=0 or 1, R.sub.1 and R.sub.2 are each aliphatic or cycloalkyl or NR.sub.1 R.sub.2 is an optionally substituted heterocyclic ring, R.sub.3 is alkyl, cycloalkyl or optionally substituted amino, R.sub.5 is an aliphatic group, R.sub.6 is H, an optionally substituted aliphatic group or a cycloalkyl group, or R.sub.3 and R.sub.5 together with the nitrogen and carbon atoms to which they are attached form an optionally substituted heterocyclic ring or R.sub.5 and R.sub.6 together with the nitrogen to which they are attached form a heterocyclic ring optionally substituted by alkyl and R.sub.7 is optionally substituted alkyl, alkoxy, alkylthio, alkylsulphinyl, alkylsulphonyl, alkoxycarbonyl, trifluoromethyl or cyano have utility as hypoglycemic agents.
公式I的化合物及其盐,其中n=0或1,R.sub.1和R.sub.2分别为脂肪族或环烷基,或NR.sub.1 R.sub.2是一个可选择取代的杂环环,R.sub.3是烷基,环烷基或可选择取代的
氨基,R.sub.5是脂肪基,R.sub.6是H,可选择取代的脂肪基或环烷基,或R.sub.3和R.sub.5与它们连接的氮和碳原子形成一个可选择取代的杂环环,或R.sub.5和R.sub.6与它们连接的氮形成一个可选择取代的杂环环,R.sub.7是可选择取代的烷基,烷氧基,烷基
硫醇,烷基磺醇,烷基磺酰基,烷氧羰基,三
氟甲基或
氰基,具有降血糖剂的用途。