Synthesis and Antiulcer Activity of Optical Isomers of 2-(4-Chlorobenzoylamino)-3-(2(1H)-quinolinon-4-yl)propionic Acid (Rebamipide).
作者:Kenji OTSUBO、Seiji MORITA、Minoru UCHIDA、Katsuya YAMASAKI、Toshimi KANBE、Takefumi SHIMIZU
DOI:10.1248/cpb.39.2906
日期:——
enantiomers of 2-(4-chlorobenzoylamino)-3-[2(1H)-quinolinon-4-yl] propionic acid [(+/-)-1, rebamipide, OPC-12759], a new antiulcer agent that enhances mucosal resistance, were synthesized from optically active alpha-amino acid derivatives of 2(1H)-quinolinone. The key intermediates, alpha-amino acid derivatives, were prepared by asymmetric synthesis and optical resolution. The (+)-1 was about 1.7 times
2-(4-氯苯甲酰基氨基)-3- [2(1H)-喹啉酮-4-基]丙酸[(+/-)-1,瑞巴派特,OPC-12759]的对映异构体,一种增强粘膜的新型抗溃疡药由2(1H)-喹啉酮的旋光性α-氨基酸衍生物合成抗性。通过不对称合成和光学拆分制备了关键中间体α-氨基酸衍生物。(+)-1对乙醇诱导的胃溃疡的抗溃疡活性约为(-)-异构体的1.7倍。