An improved process for the preparation of morphinane analogues

Details An improved process for the preparation of morphinane analogues An improved process for the preparation of morphinane analogues

C - Chemistry, Metallurgy

07

D

C07D 489/00 (2006.01) C07D 489/12 (2006.01) C07D 489/02 (2006.01) C07D 489/08 (2006.01)

Patent

CA 2720034

The present invention relates to an improved process for preparing morphinane analogues of formula (1) wherein the substituents R1, R2, R2a, R3, R4, R5 and Y have the meanings as defined in the specifications.

La présente invention porte sur un procédé perfectionné pour la préparation d'analogues de morphinane de formule (1) dans laquelle les substituants R1, R2, R2a, R3, R4, R5 et Y ont les significations telles que définies dans la description.

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