Das Bhaskar C, Mahalingam Sakkarapalayam M, Evans Todd
Department of Nuclear Medicine, Albert Einstein College of Medicine, Bronx, NY 10461, USA.
Tetrahedron Lett. 2009 Jun 24;50(25):3031-3034. doi: 10.1016/j.tetlet.2009.04.003.
We developed a procedure to synthesize pinacolyl boronate containing stilbene derivatives and used this procedure to synthesize boron-containing combretastatin analogues. The key step involves the Wittig reaction of the ylide 4-(4,4,5,5-tetramethyl-1,3,2-dioxaboratophenyl)-methyl triphenylphosphonium bromide 11 with 3,4,5-trimethoxy benzaldehyde in the presence of (t)BuONa in DMF, providing 88% yield. We are now in a position to evaluate the biological activity of these derivatives as modulators of TGF-beta signaling pathways.
我们开发了一种合成含茋衍生物的频哪醇硼酸酯的方法,并使用该方法合成了含硼的康普他汀类似物。关键步骤涉及在DMF中,在叔丁醇钠存在下,叶立德4-(4,4,5,5-四甲基-1,3,2-二氧硼杂环戊烷苯基)-甲基三苯基溴化鏻11与3,4,5-三甲氧基苯甲醛的维蒂希反应,产率为88%。我们现在能够评估这些衍生物作为TGF-β信号通路调节剂的生物活性。