Enantioseparation of 3-Hydroxycarboxylic Acids via Diastereomeric Salt Formation by 2-Amino-1,2-diphenylethanol (ADPE) and Cinchonidine
作者:Srinivas Chandrasekaran、Masaki Tambo、Yuta Yamazaki、Tatsuro Muramatsu、Yusuke Kanda、Takuji Hirose、Koichi Kodama
DOI:10.3390/molecules28010114
日期:——
Enantioseparation of 3-hydroxycarboxylic acids via diastereomeric salt formation was demonstrated using 2-amino-1,2-diphenylethanol (ADPE) and cinchonidine as the resolving agents. Racemic 3-hydroxy-4-phenylbutanoic acid (rac-1), 3-hydroxy-4-(4-chlorophenyl)butanoic acid (rac-2), and 3-hydroxy-5-phenylpentanoic acid (rac-3) were efficiently resolved using these resolving agents. Moreover, the successive
使用 2-氨基-1,2-二苯基乙醇 (ADPE) 和辛可尼定作为拆分剂证明了 3-羟基羧酸通过非对映体盐形成的对映分离。外消旋 3-羟基-4-苯基丁酸 (rac-1)、3-羟基-4-(4-氯苯基)丁酸 (rac-2) 和 3-羟基-5-苯基戊酸 (rac-3)使用这些解析代理解析。此外,使用乙醇对 1 和辛可尼定的难溶性非对映体盐进行连续结晶,以高产率得到纯 (R)-1·辛可尼定盐。阐明了难溶性非对映体盐的晶体结构,并揭示了氢键和 CH/π 相互作用在增强难溶性非对映体盐的结构中起着重要作用。