METHOD FOR PREPARING PYRIDO-(1,2-A)PYRIMIDINE DERIVATIVES OR THEIR SALTS

METHOD FOR PREPARING PYRIDO-(1,2-A)PYRIMIDINE DERIVATIVES OR THEIR SALTS

Compounds of the formula or pharmaceutically acceptable acid-addition or quaternart ammonium salts thereof wherein R is hydroxy, carboxy, lower alkoxycarbonyl, benzyloxycarbonyl, phenoxycarbonyl, carbamoyl, N-loweralkyl-carbamoyl, N,N-dilower-alkyl-carbamoyl, carboazido, carbohydrazido or cyano; R2...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: GABOR NAD,HU, FERENTS FYULEP,HU, SHANDOR VIRAG,HU, JOZHEF KNOLL,HU, GABOR BERNAT,HU, ISHTVAN KHERMETS,HU, PETER SENTMIKLOSHI,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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Beschreibung
Zusammenfassung:Compounds of the formula or pharmaceutically acceptable acid-addition or quaternart ammonium salts thereof wherein R is hydroxy, carboxy, lower alkoxycarbonyl, benzyloxycarbonyl, phenoxycarbonyl, carbamoyl, N-loweralkyl-carbamoyl, N,N-dilower-alkyl-carbamoyl, carboazido, carbohydrazido or cyano; R2 is C1 to C6 alkyl; R3 is C1 to C6 alkyl or benzyl; and R4 is a single electron pair, hydrogen or lower alkyl; and the dotted lines represent saturated or unsaturated bonds, are disclosed with analgesic properties.