2,9-DISUBSTITUTED PURIN-6-ONES METHOD OF OBTAINING AND THERAPEUTIC AGENTS CONTAINING THEM

2,9-disubstd. purin-6-ones of formula (I) and their tautomers and salts are new: R1 = 2-10C alkyl or phenyl(2-10C)alkyl opt. ring-substd. by halo, NO2, CN or 1-6C alkyl; R2 = H, OH, azido, 1-6C alkyl or OSO2R 5; R3 = H; or R2+R3 = O; R4 = H or 1-4C alkyl; R5 = 1-4C alkyl or phenyl; A = 3,4-methylene...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	SCHUETZ HELMUTH, NIEWOEHNER ULRICH, BISCHOFF ERWIN, PERZBORN ELISABETH, SCHRAMM MATTHIAS
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY HETEROCYCLIC COMPOUNDS HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE METALLURGY ORGANIC CHEMISTRY PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS
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