Dihydroetorphines and their preparation

Details Dihydroetorphines and their preparation Dihydroetorphines and their preparation

C - Chemistry, Metallurgy

07

D

C07D 489/12 (2006.01) A61K 31/4353 (2006.01) A61P 29/00 (2006.01)

Patent

CA 2745537

The present invention provides a process for the preparation of a compound of formula (VI), or a salt or derivative thereof, wherein R1 and R2 are independently C1-8 alkyl and * represents a stereocentre.

La présente invention concerne un procédé de préparation d'un composé de formule (VI), ou un sel ou un dérivé de ce composé, dans laquelle R1 et R2 sont indépendamment un groupe alkyle en C1-8 et * représente un stéréocentre.

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