Method for preparing sulfanyl-type endothelin receptor...

C - Chemistry – Metallurgy – 07 – D

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C07D 239/60 (2006.01) C07C 319/14 (2006.01) C07C 323/22 (2006.01) C07D 317/56 (2006.01)

Patent

CA 2322226

The invention relates to a method for preparing sulfanyl-type endothelin receptor antagonists of general formula (I) wherein R1 represents hydroxy, alkoxy, sulfonamidyl, amino; R2 represents alkyl, aryl or heteroaryl, optionally substituted, and R3, R4, R5 can be the same or different and are alkyl or aryl, optionally substituted, by means of nucleophilic reaction of a carboxylic acid derivative of formula (II) with a sulfide of formula (III), X being SR6 or SO2R6 and R6 being alkyl or aryl, optionally substituted.

L'invention concerne un procédé de préparation d'antagonistes de récepteurs d'endothéline de type sulfanyle de la formule générale (I) où R?1¿ représente hydroxy, alcoxy, sulfonamidyle, amido; R?2¿ représente alkyle, aryle ou hétéroaryle, éventuellement substitués et R?3¿, R?4¿, R?5¿, identiques ou différents, représentent alkyle ou aryle, éventuellement substitués, par réaction nucléophile d'un dérivé d'acide carboxylique de la formule (II) avec un sulfure de la formule (III) où X représente SR?6¿ ou SO¿2?R?6¿ et R?6¿ représente alkyle ou aryle, éventuellement substitués.

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