A convergent approach to synthesis of bortezomib: the use of TBTU suppresses racemization in the fragment condensation
作者:Andrey S. Ivanov、Anna A. Zhalnina、Sergey V. Shishkov
DOI:10.1016/j.tet.2009.06.042
日期:2009.8
treating patients with multiple myeloma and mantle cell lymphoma. In this paper we report an improved method for synthesis of the title compound using a convergent approach. TBTU was found to efficiently suppress racemization in the fragment condensation. In comparison with the original synthesis, the presented one is shorter by two steps, higher in yield, and provides better atom economy.
硼替佐米是一流的抗肿瘤治疗药物,用于治疗多发性骨髓瘤和套细胞淋巴瘤患者。在本文中,我们报告了一种使用收敛方法合成标题化合物的改进方法。发现TBTU可有效抑制碎片缩合中的外消旋作用。与原始合成方法相比,本文提出的方法缩短了两个步骤,产率更高,并且提供了更好的原子经济性。