Synthesis and in solution behaviour of new 2-substituted-4-thiazolidinecarboxylic acid derivatives
作者:D. Chiarino、F. Ferrario、F. Pellacini、A. Sala
DOI:10.1002/jhet.5570260313
日期:1989.5
2-substituted-4-thiazolidinecarboxylic acid derivatives were synthesized by cyclocondensation of L-cysteine or its esters with various aldehydes, resulting from acids provided with antiinflammatory properties. In the cyclocondensation a new chiral center at C-2 position of thiazolidine ring is formed giving rise to a mixture of diastereoisomers which can be partially separated. These diastereoisomers
通过将L-半胱氨酸或其酯与各种醛进行环缩合,可以合成出许多2-取代的4-噻唑烷羧酸衍生物,这些酸具有抗炎特性。在环缩合中,在噻唑烷环的C-2位上形成新的手性中心,产生可以部分分离的非对映异构体的混合物。这些非对映异构体在溶液中显示出在同一手性中心的快速差向异构,如1 H-nmr研究所证明的。