C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 211/34 (2006.01) C07D 211/20 (2006.01) C07D 211/22 (2006.01) C07D 211/60 (2006.01) C07D 211/78 (2006.01) C07D 275/06 (2006.01) C07D 405/12 (2006.01) C07D 413/06 (2006.01) C07D 417/06 (2006.01) C07H 13/10 (2006.01)
Patent
CA 2212451
This invention relates to new stereoselective processes for preparing 3-substituted-4-aryl piperidines and methods for controlling the absolute stereochemistry at the C-3 and C-4 positions of the piperidine ring. Compounds of this type are key intermediates in the preparation of paroxetine, femoxetine,and other medicaments.
Cette invention concerne des nouveaux procédés stéréosélectifs de préparation de 4-aryl-pipéridines substituées en position 3 et des méthodes pour contrôler la stéréochimie absolue des positions 3 et 4 du cycle de la pipéridine. Les composés de ce type sont des intermédiaires clé pour la préparation de la paroxétine, de la femoxétine et d'autres médicaments.
Murthy K. S. Keshava
Rey Allan W.
Apotex Pharmachem Inc.
Brantford Chemicals Inc.
Mckinnon Graham J.k.
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