METHOD OF THE PREPARATION OF PURINE DERIVATIVES OR THEIR SALTS

摘要

9-[3-(4-Phenoxymethylpiperidino)-propyl]-adenines of the formula <IMAGE> wherein R1 is a hydrogen atom or a lower alkyl radical, R2 is a hydrogen atom, a ower alkyl radical optionally substituted by hydroxyl, or a cycloalkyl radical, or R1 and R2 together with the nitrogen atom to which they are attached form a heterocyclic ring, and R3 is a hydrogen atom, a halogen atom, a lower alkyl radical or a lower alkoxy radical, IN THE FORM OF THE FREE BASE OR A SALT THEREOF, EXHIBIT ANTI-ALLERGIC, ANTI-INFLAMMATORY, ANTI-OEDEMATOUS AND ANTI-HYPERTENSIVE ACTIVITY.