NOVEL 5-H PYRIDO (3,4 : 4,5) PYRROLO (3,2-C) PYRIDINE DERIVATIVES METHOD FOR THEIR PREPARATION AND THEIR ANTITUMOR ACTIVITY

摘要

Derivatives of formula: IMAGE in which n denotes an integer from 2 to 4, R1 denotes hydrogen or a lower alkyl group, R2 and R3 denote hydrogen, a lower alkyl or hydroxyalkyl group and the tautomeric forms and addition salts with pharmaceutically acceptable inorganic or organic acids. Application in therapeutics.