(<i>S</i>)-3-Methyl-2-phenylbutylamine, a Versatile Agent to Resolve Chiral, Racemic Carboxylic Acids<sup>1</sup>
作者:Yasuo Chikusa、Taizo Fujimoto、Masaya Ikunaka、Toru Inoue、Shunji Kamiyama、Koichi Maruo、Jun Matsumoto、Keisuke Matsuyama、Masafumi Moriwaki、Hiroyuki Nohira、Shigeya Saijo、Masato Yamanishi、Kazuto Yoshida
DOI:10.1021/op010081z
日期:2002.5.1
(S)-Ibuprofen 2, (S)-ketoprofen 3, and (S)-naproxen 4 are all obtained by optical resolution of the respective racemates with (S)-3-methyl-2-phenylbutylamine (PBA) 1: (S)-2, 98.7% ee, 39.8% yield; (S)-3, 99.4% ee, 36.7% yield; (S)-4, 99.2% ee, 35.1% yield. (S)-PBA 1 is also useful in resolving other racemic carboxylic acids of pharmaceutical importance; (R)-2-hydroxy-4-phenylbutanoic acid (HPBA) 5
(S)-布洛芬 2、(S)-酮洛芬 3 和 (S)-萘普生 4 均通过各自外消旋体与 (S)-3-甲基-2-苯基丁胺 (PBA) 1 的光学拆分获得: (S )-2, 98.7% ee, 39.8% 收率;(S)-3, 99.4% ee, 36.7% 收率;(S)-4, 99.2% ee, 35.1% 产率。(S)-PBA 1 也可用于拆分其他具有药学重要性的外消旋羧酸;(R)-2-羟基-4-苯基丁酸 (HPBA) 5,ACE 抑制剂如苯那普利 7 的关键中间体,和 (S)-2-苄基琥珀酸 (BSA) 6,降血糖 KAD-1229 的关键中间体8,分别以 99% ee 和 34.4% 的收率获得,以及分别以 99% ee 和 32.2% 的收率获得。