Amino Acid Salts Catalyzed Asymmetric Aldol Reaction of Tryptanthrin: A Straightforward Synthesis of Phaitanthrin A and Its Derivatives
作者:Guowei Kang、Zhenli Luo、Chongxing Liu、Hang Gao、Quanquan Wu、Huayue Wu、Jun Jiang
DOI:10.1021/ol402104p
日期:2013.9.20
The first asymmetric synthesis of (S)-Phaitanthrin A and its derivatives via a catalytic aldol reaction of Tryptanthrin and ketones is described, in which the cheap, easily prepared natural amino acid salts exhibited unique catalytic ability; importantly, this methodology tolerates a range of substrates with different substitution patterns. Moreover, the synthetic utility of this strategy was further
描述了通过Tryptanthrin和酮的催化羟醛反应进行的(S)-Phaitanthrin A及其衍生物的首次不对称合成,其中廉价,易于制备的天然氨基酸盐表现出独特的催化能力。重要的是,这种方法可以容忍一系列具有不同取代模式的底物。而且,该策略的合成效用进一步被革兰蛋白酶A的克级合成所说明。