Synthesis of the Optical Isomers of 4-[1-(4-tert-Butylphenyl)-2-oxo-pyrrolidine-4-yl]methyloxybenzoic Acid (S-2) and Their Biological Evaluation as Antilipidemic Agent.
作者:Tomoyasu OHNO、Shin-go YANO、Haruo YAMADA、Tetsuhiko SHIRASAKA、Akira YAMAMOTO、Kimiko KOBAYASHI、Kazuo OGAWA
DOI:10.1248/cpb.47.1549
日期:——
4-yl]methyloxybenzoic acid (S-2), a new antilipidemic agent having dual action on the plasma triglyceride (TG) and cholesterol (Cho) lowering effects, were prepared via separation by Chiralcel OJ column chromatography of their methyl ester and also by the same method as the described racemate's synthesis from optically active 1-(4-tert-butylphenyl)-2-oxo-pyrrolidine-4-carboxylic acid respectively. These
对血浆具有双重作用的新型抗血脂药(S-2)(+/-)-4- [1-(4-叔丁基苯基)-2-氧-吡咯烷-4-基]甲氧基苯甲酸(S-2)的对映体降低甘油三酸酯(TG)和降低胆固醇(Cho)的作用是通过Chiralcel OJ柱色谱分离它们的甲酯,并采用与上述消旋体由旋光的1-(4-叔丁基苯基)-2合成的方法相同的方法制备的-氧代吡咯烷-4-羧酸。通过拆分非对映异构体N-[(S)-(-)-[4-甲基-(α-甲基)苄基]]-1-(4-叔丁基苯基)-2-氧,制备了这些旋光羧酸。 -使用硅胶柱色谱法的吡咯烷-4-羧酰胺,然后用N 2 O 4脱氨基。S-2对映异构体的绝对构型是通过(+)-4- [1-(4-(叔丁基苯基)-2-氧]-的4-溴-2-氟苯甲酰胺的X射线分析间接确定的吡咯烷-4-基]-甲氧基苯甲酸。S-2及其对映异构体在体外对脂肪酸和固醇的生物合成抑制作用显示出基本相等的活性。另一方面,在体内活性中,(S)-(+)-4-