Stereoselective synthesis of an immunomodulator (+)-conagenin from commercially available optically active methyl 3-hydroxy-2-methylpropanoate was achieved using dirhodium(II)-catalyzed C-H amination and chelation-controlled reductions as key steps.
使用商业可得的光学活性甲基-3-羟基-2-甲基
丙酸酯,通过二
铑(II)催化的C-H胺化和螯合控制还原作为关键步骤,实现了免疫调节剂(+)-conagenin的立体选择性合成。