A stereoselectivce process for the preparation of clopidogrel

Details A stereoselectivce process for the preparation of clopidogrel A stereoselectivce process for the preparation of clopidogrel

C - Chemistry, Metallurgy

07

D

C07D 495/04 (2006.01) C07C 209/68 (2006.01) C07C 211/08 (2006.01) C07D 333/20 (2006.01)

Patent

CA 2563662

The invention relates to a method for the production of a compound of general formula (Ia), wherein X represents a halogen atom or a pharmaceutically acceptable salt thereof, wherein a compound of formula (II), in which X is defined as above and Y and Z represent a leaving independently of one another, is reacted with an optically active amino alcohol in order to obtain a first mixture of diastereomers.

L'invention concerne un procédé de production d'un composé correspondant à la formule générale (Ia), dans laquelle X représente un atome d'halogène, ou bien de production d'un sel pharmaceutiquement compatible dudit composé, procédé selon lequel on fait réagir un composé correspondant à la formule (II), dans laquelle X correspond à la définition donnée ci-dessus et Y et Z représentent, indépendamment l'un de l'autre, chacun un nucléofuge, avec un aminoalcool optiquement actif pour obtenir un premier mélange de diastéréomères.

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