synthesis of dolastatin 10, a potent inhibitor of microtubule assembly, which displayed remarkable antineoplastic activity, is reported. Our synthetic approach was based upon ruthenium-promoted asymmetric hydrogenation of β-keto esters derived from (S)-Boc-proline and (S)-Boc-isoleucine for the construction of the two key units: (2R,3R)-Boc-dolaproine (Dap) and (3R)-Boc-dolaisoleucine (Dil).
据报道,dolastatin 10(一种有效的微管组装
抑制剂)的全合成,显示出显着的抗肿瘤活性。我们的合成方法是基于
钌促进的(S)-Boc-脯
氨酸和(S)-Boc-
异亮氨酸衍生的β-
酮酯的不对称氢化反应,用于构建两个关键单元:(2 R,3 R)- Boc-dolaproine(Dap)和(3 R)-Boc-dolaisoleucine(Dil)。