Process for the glycosidation of colchicine and thiocolchicine

Details Process for the glycosidation of colchicine and thiocolchicine Process for the glycosidation of colchicine and thiocolchicine

C - Chemistry, Metallurgy

07

H

C07H 15/248 (2006.01) C07C 49/755 (2006.01)

Patent

CA 2725842

A process for the preparation of compounds having formula (I) is disclosed, wherein: - R1 is a methoxy or methylthio group; - R2 is a O-glycosyloxy residue. Compounds having formula (I) are prepared by reacting the corresponding precursor having R2 = OH and the suitably protected 1-acetyl-glycose.

la présente invention concerne un procédé de préparation de composés ayant la formule (I), dans laquelle : - R1 représente un groupe méthoxy ou méthylthio ; - R2 représente un résidu O-glycosyloxy. Les composés ayant la formule (I) sont préparés en faisant réagir le précurseur correspondant dans lequel R2 = OH, et le 1-acétyl-glycoside protégé de manière approprié.

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