METHOD OF PRODUCING 2,3-POLYMETHYLENE-4-OXO-4N-PYRIDO-/1,2-A/-PYRIMIDINES OR THEIR TERTIARY SALTS

Pharmaceutical intermediates, morphine potentiators and other compounds have the formula wherein R is hydrogen, halogen, C1-4 alkyl, hydroxy, nitro, amino, carboxy or a carboxylic acid derivate radical, R1 is hydrogen or a C1-4 alkyl, R2 is hydrogen or C1-4 alkyl, R3 is hydrogen, R4 is hydrogen or C...

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Hauptverfasser:	FERENTS FYULEP,HU, JOZHEF KNOLL,HU, GABOR BERNAT,HU, ISHTVAN KHERMETS,HU, ZOLTAN MESAROSH,HU
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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