Selected process for producing monohalogenated derivatives...

C - Chemistry – Metallurgy – 07 – D

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260/279.37, 260/

C07D 407/12 (2006.01) C07D 295/10 (2006.01) C07D 311/16 (2006.01)

Patent

CA 1100498

ABSTRACT OF THE DISCLOSURE: Monohalogenated derivatives of 7-hydroxy coumarin having the general formula: Image wherein R1 is an alkyl radical substituted with a basic group, R2 is hydrogen or an alkyl or aryl radical, R3 is an alkyl radical substituted with a basic group, an alkenyl radical, a carboxyalkyl radical or an alkoxycarbonylalkyl radical and X represents a halogen atom, have been found to possess a remarquable vasodilatory activity.

315435

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