Bicyclic catechol derivatives, a preparation process thereof...

Details Bicyclic catechol derivatives, a preparation process thereof... Bicyclic catechol derivatives, a preparation process thereof...

C - Chemistry, Metallurgy

07

D

167/242, 260/327

C07D 333/56 (2006.01) A61K 31/10 (2006.01) C07D 335/06 (2006.01) C07D 337/08 (2006.01)

Patent

CA 1278299

A B S T R A C T This invention relates to bicyclic catechol derivatives having the general formulae I and II Image Image I II wherein R1, R2, R3 and Z represent various substituents, to a preparation process of the same comprising reacting a compound of formula III Image III wherein R1 and R2 have the meanings given above with an appropriately substituted propionic or butyric acid (or an ester or a salt of the same) of formula IV Image IV wherein R3 has the meaning given above, and to therapeutical compositions wherein the active ingredient is one of these compounds.

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