ESTERS OF HYDROXYLALKYL-PURINES, PROCESSES FOR PREPARING THEM AND THERAPEUTICAL COMPOSITION CONTAINING THESE ESTERS AS ACTIVE INGREDIENTS

摘要

There are prepared compounds of the formula where R1 is alkyl of 1 to 8 carbon atoms and R2 is the ester group of an unsubstituted monocarboxylic acid, aromatic carboxylic acid, aminocarboxylic acid, unsubstituted dicarboxylic acid, phosphoric acid, or nitric acid or a glycoside or an acetaldehyde acetal. The compounds are immunomodulators, have antiviral activity and antitumor activity and also are enzyme inhibitors. The compounds can also be used to introduce the corresponding alcohol into biological systems, in some cases with enhanced potency.