Synthesis and Assignment of the Absolute Configuration of Indenotryptoline Bisindole Alkaloid BE-54017
作者:Tomoyuki Kimura、Shuhei Kanagaki、Yusuke Matsui、Masaya Imoto、Takumi Watanabe、Masakatsu Shibasaki
DOI:10.1021/ol3019314
日期:2012.9.7
Synthesis of the indenotryptoline bisindole alkaloid, BE-54017, was accomplished using osmium-promoted cis-dihydroxylation of maleimide as a key step. After optical resolution, the absolute configuration of this molecule was determined by comparing its optical rotation and HPLC profile to those obtained for BE-54017 derived from enantiopure cladoniamide A, whose stereochemistry has been reported previously
以马来酰亚胺的line促进的顺-二羟基化为关键步骤,完成了茚并隐环线双吲哚生物碱BE-54017的合成。光学拆分后,通过将其旋光度和HPLC谱图与从对映纯克拉多酰胺A衍生的BE-54017获得的分子旋光度和HPLC谱图进行比较,确定了该分子的绝对构型,该立体化学以前已有报道。具有正确的绝对立体化学的BE-54017诱导表皮生长因子(EGF)刺激的EGF受体过表达的A431细胞凋亡,并抑制液泡型H + -ATPase(V-ATPase)。