Total synthesis and biological evaluation of (−)-exiguolide analogues: importance of the macrocyclic backbone
作者:Haruhiko Fuwa、Kana Mizunuma、Makoto Sasaki、Takaya Suzuki、Hiroshi Kubo
DOI:10.1039/c3ob40131f
日期:——
(−)-Exiguolide (1), isolated from the marine sponge Geodia exigua, has been shown to inhibit the growth of the A549 human lung adenocarcinoma and NCI-H460 human lung large cell carcinoma cells in vitro. In this study, we synthesized structural analogues of 1 to explore its skeletal structure–activity relationships and found that the C18 methyl group and the configuration of the C16–C17 double bond
(-)-Exiguolide(1),从海洋海绵Geodia exigua分离,已显示在体外抑制A549人肺腺癌和NCI-H460人肺大细胞癌细胞的生长。在这项研究中,我们合成了1的结构类似物以探索其骨架结构与活性之间的关系,并发现C18甲基和C16-C17双键1的构型对于有效的抗增殖活性很重要。此外,我们通过总合成后期中间体的多样化制备了一系列1的侧链类似物,发现1的三烯侧链 可以在不显着丧失活性的情况下对其进行一定程度的修饰,前提是路易斯碱性杂原子位于末端。