METHOD FOR PREPARING NOVEL TETRAZOLE DERIVATIVES

PURPOSE:Tetrazole derivatives of formula 1 are new: [where ring P is pyridine ring; Y is O, S or-NR'-(R' is H or lower alkyl); R is H or lower alkyl; X and X are H, halogen, lower alkyl, lower alkoxy, phenyl or substituted phenyl (a substituent is halogen, lower alkyl, lower alkoxy or trif...

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Hauptverfasser:	OOE TAKANORI, TSURUTA MINEO
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:	PURPOSE:Tetrazole derivatives of formula 1 are new: [where ring P is pyridine ring; Y is O, S or-NR'-(R' is H or lower alkyl); R is H or lower alkyl; X and X are H, halogen, lower alkyl, lower alkoxy, phenyl or substituted phenyl (a substituent is halogen, lower alkyl, lower alkoxy or trifluoromethyl); Z is carboxyl or its reactive derivative], as an example, 7-(5-1H-tetrazolyl)5-OXO5H-[1] benzopyrano [2,3-b] pyridine.