AbstractEquol, a nonsteroidal estrogen produced from the metabolism of the isoflavonoid phytoestrogen daidzein, has been synthesized as both enantioenriched forms based on MacMillan’s α-arylation of carbonyl compound mediated by amino acid derived indazolidinones and copper precatalysts. The natural form of (S)-equol and its enantiomer (R)-equol have been synthesized in 8 steps from 2,4-dimethoxybenzaldehyde with good enantiomeric purity (90% ee and 90% ee, respectively).
摘要:从异黄酮类植物雌激素大豆异黄酮代谢产生的非类固醇雌激素Equol,已经合成为根据MacMillan的α-芳基化的酮化合物,通过氨基酸衍生的indazolidinones和铜催化剂来制备富含对映体的形式。自然形式的(S)-equol及其对映体(R)-equol已经从2,4-二甲氧基苯甲醛经过8个步骤合成,其对映纯度良好(分别为90% ee和90% ee)。