[EN] PROCESS AND INTERMEDIATES FOR THE PREPARATION OF N-ACYLATED-4-ARYL BETA-AMINO ACID DERIVATIVES<br/>[FR] PROCÉDÉS ET INTERMÉDIAIRES DE SYNTHÈSE DE DÉRIVÉS D'ACIDES BÊTA-AMINÉS N-ACYLÉS-4-ARYLE
申请人:CHIRAL QUEST INC
公开号:WO2010078440A1
公开(公告)日:2010-07-08
A process for producing an enantiomerically enriched, pure or enriched and essentially pure compound of Formula I [structure] wherein the R-, or S-configuration at the stereogenic center is marked with an *, which process hydrogenates an enamide compound of formula III [structure] in an organic solvent in the presence of a transition metal precursor complexed to a chiral phosphine ligand catalyst, wherein Ar is phenyl which is unsubstituted or substituted, R1 and R2 are selected from H, Cl - 8 alkyl, C5 - 12 cycloalkyl, aryl and aryl-C 1 - 2-alkyl, or R1 and R2 together with the nitrogen atom to which they are attached form a C4- r member heterocyclic πng system optionally fused with a 5- to 6- member carbocyclic or heterocyclic ring system, and the other substituents are as defined herein.
一种生产富含对映体、纯或富含并基本纯的化合物的方法,其化学式为I,其中在手性中心处的R-或S-构型用*标记,该方法在有机溶剂中氢化化学式III的烯酰胺化合物,存在过渡金属前体与手性膦配体催化剂络合,其中Ar为苯且未取代或取代,R1和R2选择自H、Cl-8烷基、C5-12环烷基、芳基和芳基-C1-2-烷基,或R1和R2与它们附着的氮原子一起形成一个C4- r成员的杂环πng系统,可选地与5-至6-成员碳环或杂环环系统融合,其他取代基如本文所定义。