Thiol compounds. V. Absolute configuration and crystal structure of (4R)-2-(2-hydroxyphenyl)-3-(3-mercaptopropionyl)-4-thiazolidinecarboxylic acid.
作者:MASAYUKI OYA、EISHIN KATO、JUN-ICHI IWAO、NORITAKE YASUOKA
DOI:10.1248/cpb.30.484
日期:——
The absolute configuration of (4R)-2-(2-hydroxyphenyl)-3-(3-mercaptopropionyl)-4-thiazolidinecarboxylic acid (11a), SA 446, which has a potent inhibitory activity against angiotensin I-converting enzyme (ACE), was determined to be (2R, 4R) by nuclear magnetic resonance (NMR) spectroscopy, specific rotation measurement and X-ray crystallography. The structure-activity relationships of the (2R, 4R)-and (2S, 4R)-isomers are discussed, and stereoselective acylation of (4R)-2-aryl-4-thiazolidinecarboxylic acids (1-3) is also described.
通过核磁共振(NMR)光谱、比旋转测定和 X 射线晶体学,确定了对血管紧张素 I 转换酶(ACE)具有强效抑制活性的(4R)-2-(2-羟基苯基)-3-(3-巯基丙酰基)-4-噻唑烷羧酸(11a),即 SA 446 的绝对构型为(2R, 4R)。文中讨论了 (2R, 4R) - 和 (2S, 4R) - 异构体的结构-活性关系,并介绍了 (4R)-2 芳基-4-噻唑烷羧酸 (1-3) 的立体选择性酰化。