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Priority claimed from US06/457,171external-prioritypatent/US4486428A/en
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Publication of FI854329ApublicationCriticalpatent/FI854329A/fi
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Publication of FI88158CpublicationCriticalpatent/FI88158C/sv
Nouveaux derives heterocycliques: 2-styryl 4h-1-benzopyrane-4-ones, leur procede de preparation et les compositions pharmaceutiques qui les contiennent.
Process for producing new bicyclic 4-/2-hydroxyethyl/-substituted-5-hydroxy-3,4-dihydro-2-benzopirane derivatives and pharmaceutical compositions containing them