2,4,5,6-Tetrahydrocyclopenta[c]pyrrole-4-carboxamide and 4-thiocarboxamide derivatives useful as antisecretory and anti-ulcer agents are prepared by hydrolysis or thiohydrolysis of the corresponding 2,4,5,6-tetrahydrocyclopenta[c]pyrrole-4-carbonitriles or, in the case of the thiocarboxamides, by reaction of the 4-carboxamide with phosphorus pentasulfide.
2,4,5,6-四氢环戊[c]
吡咯-4-羧酰胺和4-
硫代羧酰胺衍
生物可作为抗分泌和抗溃疡剂,通过对应的2,4,5,6-四氢环戊[c]
吡咯-4-碳腈的
水解或
硫代
水解制备,或在
硫代羧酰胺的情况下,通过4-羧酰胺与五
硫化二
磷的反应制备。