Asymmetric Synthesis of<i>β</i>-Amino-<i>α</i>-Hydroxy Acids through Lewis Acid-Mediated Addition of Ketene Acetal to Imines
作者:Hyun-Joon Ha、Young-Gil Ahn、Jun-Sik Woo、Gwan Sun Lee、Won Koo Lee
DOI:10.1246/bcsj.74.1667
日期:2001.9
Asymmetric synthesis of β-amino-α-hydroxy acids, key components of medicinally important molecules including Paclitaxel, KRI-1314, amastatin, and microginin, has been attained from the aldimine coupling of chiral imines N-alkylidene-(S)- or (R)-α-methylbenzylamine with (Z)-α-methoxyketene methyltrimethylsilyl acetal, followed by demethylation, hydrogenolysis, and hydrolysis.
β-氨基-α-羟基酸(包括紫杉醇、KRI-1314、阿马司他汀和微精蛋白等药物分子的重要成分)的非对称合成是通过手性亚胺N-烯丙基-(S)-或(R)-α-甲基苄胺与(Z)-α-甲氧基乙烯酮甲基三甲基硅烷缩醛的醛胺偶联反应实现的,随后进行脱甲基、氢解和水解。