TRICYCLIC BENZOPYRAN COMPOUNDS AS ANTI-ARRHYTHMIC AGENTS

This invention relates to benzopyran derivatives of formula (I) or (II), or pharmaceutically acceptable salts thereof wherein R1 and R2 are independently of each other hydrogen atom, C1-6alkyl group or C6-14aryl group, R3 is hydrogen atom or C1-6alkylcarbonyloxy group, or together with R4 forms a bo...

Ausführliche Beschreibung

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Hauptverfasser:	MATSUDA TOMOYUKI, OHRAI KAZUHIKO, SHIGETA YUKIHIKO, UESUGI OSAMU, OKADA TAKUMI
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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