Amidobenzamides, their salts, process for preparing them and pharmaceutical compositions containing them

摘要

Amidobenzamides having an antagonising action on histamine H2 receptors, of formula: <IMAGE> in which A is CO or SO2 and B is alkyl, phenyl, pyridyl, pyridyl 1-oxide, pyrazinyl or thienyl; its salts; a process for preparing them by reacting 2-(2-guanidinothiazol-4-ylmethylthio)ethylamine with a derivative of formula <IMAGE> and optional salification, and pharmaceutical compositions containing them.