9-(3-PIPERIDINOPROPYL)-PURINE DERIVATIVES, PROCESSES FOR THEIR PREPARATION, THEIR USE AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEM

摘要

Novel 9-[3-(4-amino-piperidino)-propyl]-adenine derivatives of the formula wherein R1 is a hydrogen atom or a lower alkyl radical, R2 is a hydrogen atom, an aryl radical, a lower alkyl radical, a hydroxy lower alkyl radical, or together with R1 and the nitrogen atom to which they are attached form a heterocyclic ring, and R3 is a hydrogen atom or an acyl radical, or salts thereof with pharmacologically acceptable acids, characterized by anti-allergic, anti-inflammatory and anti-oedematous activity.