Pyridazodiazepine derivatives

摘要

Compounds of the formula <IMAGE> I wherein R1 and R2 each independently represent hydrogen, C1-C10-alkyl, adamantyl-(C1-C4-alkyl) or (C2-C6-alkanoyloxy)-(C1-C4-alkyl), and pharmaceutically acceptable salts thereof possess antihypertensive activity and can be used as theraputic or prophylactic agents in pharmaceutical preparations. Intermediates for the production of such compounds are also provided.