Catechol derivatives, a process of preparation thereof, and...

C - Chemistry – Metallurgy – 07 – C

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167/281, 260/616

C07C 323/20 (2006.01) A61K 31/10 (2006.01) C07D 335/06 (2006.01) C07D 337/08 (2006.01)

Patent

CA 1318686

A B S T R A C T This invention relates to catechol derivatives having the general formula Image wherein R represents various substituents, to a process for the preparation of the same comprising reacting S-(3,4-dihydroxyphenyl)-isothiourea, which has the formula II, with a tosylate of the general formula III Image II III and to therapeutical compositions wherein the active ingredient is one of these compounds.

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