Process for the preparation of (2r)-piperidine derivatives

Details Process for the preparation of (2r)-piperidine derivatives Process for the preparation of (2r)-piperidine derivatives

C - Chemistry, Metallurgy

12

P

C12P 17/12 (2006.01) C07D 211/22 (2006.01) C07D 211/26 (2006.01) C07D 211/60 (2006.01) C12P 41/00 (2006.01)

Patent

CA 2341554

The invention relates to a method for preparing (R)-piperidine derivatives of the general formulas (I) and (VII), where R1 is hydroxy, amino or C1-6-alkoxy and R4 is hydroxy or amino. Said (R)-piperidine derivatives are obtained from (RS)-piperidine derivatives of the general formula (II), in which R2 is hydroxy, amino or C1-6-alkoxy, in the presence of trace elements and using micro-organisms or cell-free enzymes from said micro-organisms.

L'invention concerne un procédé de préparation de dérivés de (R)-pipéridine de formule générale (I) et (VII), dans laquelle R?1¿ représente hydroxy, amino ou C¿1-6?-alcoxy et R?4¿ représente hydroxy ou amino. Les dérivés de (R)-pipéridine sont obtenus à partir de (RS)-pipéridine de formule générale (II), dans laquelle R?2¿ représente hydroxy, amino ou C¿1-6?-alcoxy, en présence d'éléments traces et en utilisant des micro-organismes ou des enzymes acellulaires issus de ces micro-organismes.

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