Preparation of Optically Pure Beta-Amino Acids Having Affinity for the Alpha-Delta Protein
申请人:Herrinton Paul Matthew
公开号:US20080194841A1
公开(公告)日:2008-08-14
Disclosed are materials and methods for preparing optically active β-amino acids, which bind to the alpha-2-delta subunit of a calcium channel and are useful for treating pain, fibromyalgia, and a variety of psychiatric and sleep disorders. The method includes reacting a chiral allyl amine with a 2-alkynoate in the presence of a Lewis acid and a base to give a chiral tertiary enamine, which after reaction with ammonia, is hydrogenated to give optically active β-amino acids.
PREPARATION OF OPTICALLY PURE BETA-AMINO ACIDS HAVING AFFINITY FOR THE ALPHA-2-DELTA PROTEIN
申请人:Pharmacia & Upjohn Company LLC
公开号:EP1863780A1
公开(公告)日:2007-12-12
[EN] PREPARATION OF OPTICALLY PURE BETA-AMINO ACIDS HAVING AFFINITY FOR THE ALPHA-2-DELTA PROTEIN<br/>[FR] PREPARATION DE $G(B)-AMINO-ACIDES OPTIQUEMENT PURS PRESENTANT UNE AFFINITE AVEC LA PROTEINE ALPHA-2-DELTA
申请人:PHARMACIA & UPJOHN CO LLC
公开号:WO2006100568A1
公开(公告)日:2006-09-28
[EN] Disclosed are materials and methods for preparing optically active ß-amino acids, which bind to the alpha-2-delta subunit of a calcium channel and are useful for treating pain, fibromyalgia, and a variety of psychiatric and sleep disorders. The method includes reacting a chiral allyl amine with a 2-alkynoate in the presence of a Lewis acid and a base to give a chiral tertiary enamine, which after reaction with ammonia, is hydrogenated to give optically active ß-amino acids. [FR] Cette invention concerne des matériaux et des procédés permettant de préparer des ß-amino acides optiquement purs, lesquels se lient à la sous-unité alpha-2-delta d'un canal calcique et sont utilisés pour traiter la douleur, la fibromyalgie, ainsi qu'une large gamme de troubles psychiatriques et de troubles du sommeil. Le procédé décrit dans cette invention consiste à faire réagir une amine allyle chirale avec un 2-alkynoate en présence d'un acide de Lewis et d'une base pour obtenir une énamine tertiaire chirale, laquelle, après réaction avec l'ammoniac, est hydrogénée pour produire des ß-amino acides optiquement purs.