PYRANOBENZOXADIAZOLE DERIVATIVE

PYRANOBENZOXADIAZOLE DERIVATIVE

NEW MATERIAL:A compound expressed by formula I [X and X are not present or O; a represents OH, OC(O)R (R represents 1-4C alkyl) or single bond together with B; B represents H or single bond together with A; R and R represent H, 1-4C alkyl or (substituted)1,4-butylene, etc., by both R and R together;...

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Hauptverfasser: MATSUMOTO HIROO, SAKOTA RYOZO, MASUDA YUKINORI, IKUSE KAZUHIKO, KAMIKAWAJI MASUMASA, NAKAYAMA KIYOUKO, SETO KIYOTOMO
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:NEW MATERIAL:A compound expressed by formula I [X and X are not present or O; a represents OH, OC(O)R (R represents 1-4C alkyl) or single bond together with B; B represents H or single bond together with A; R and R represent H, 1-4C alkyl or (substituted)1,4-butylene, etc., by both R and R together; R and R represent H, (substituted) 1-4C alkyl, 3-6C cyclic alkyl, etc.] or salt thereof. EXAMPLE:7,8-Dihydro-6,6-dimethyl-7-hydroxy-8-diethylamino-6H-pyrono[2,3- f]benzo-2,1,3-oxadiazole-3-oxide expressed by formula II. USE:A remedy for hypertension and asthma. PREPARATION:A compound expressed by formula III is reacted with a compound expressed by the formula HN(R )(R ) to afford a compound expressed by formula I wherein both R and R will not represent acyl group.