First systematic chiral syntheses of two pairs of enantiomers with 3,5-dihydroxyheptenoic acid chain, associated with a potent synthetic statin NK-104
作者:Mikio Suzuki、Yoshinobu Yanagawa、Hiroshi Iwasaki、Hiroyasu Kanda、Kazufumi Yanagihara、Hiroo Matsumoto、Yoshio Ohara、Yukari Yazaki、Ryozo Sakoda
DOI:10.1016/s0960-894x(99)00519-3
日期:1999.10
First systematic chiral syntheses of two pairs of enantiomers with 3,5-dihydroxyheptenoic acid chain, associated with a potent synthetic statin NK-104 are reported. A pair of syn diol isomers (NK-104 and its enantiomer) was obtained efficiently by diastereomeric resolution. The synthesis of a pair of anti diol isomers (3-epimer and 5-epimer) was accomplished effectively by the asymmetric aldol reaction
报道了具有有效的合成他汀类药物NK-104的两对具有3,5-二羟基庚酸链对映体的系统手性合成。通过非对映异构拆分可有效地获得一对合成二醇异构体(NK-104及其对映异构体)。一对抗二醇异构体(3-epimer和5-epimer)的合成通过不对称的醇醛缩醛反应有效地完成,然后进行抗立体选择性还原为关键步骤。它们的纯度测定通过手性HPLC分析进行。