UN PROCEDIMIENTO PARA LA PREPARACION DE DERIVADOS DE IMI- DAZOL TRICICLICOS

摘要

Tricyclic imidazole derivatives of formula I I wherein one of R1 and R3 is lower alkyl and the other is hydrogen or lower alkyl, R2 is lower alkyl, n is the number 0 or 1, A is R4, R5, R6 and R7 each is lower alkyl and R8 is hydrogen or lower alkyl, and their acid addition salts are described. These compounds are useful as agents for control or prevention of ulcers and of increased gastric acid secretion.