Octadehydromichellamine, a structural analog of the anti-HIV michellamines without centrochirality
作者:Gerhard Bringmann、Matthias Wenzel、T.Ross Kelly、Michael R. Boyd、Robert J. Gulakowski、Ronald Kaminsky
DOI:10.1016/s0040-4020(98)01195-8
日期:1999.2
octadehydromichellamine (4), as the fully dehydrogenated structural analog of the naturally occurring michellamines (1), is described. This derivative is the first michellamine-type quateraryl without centrochirality and thus constitutes a distinctly simplified structural michellamine analog. Key step of the total synthesis is the twofold coupling of a bis-O-triflate activated central binaphthalene building
描述了作为天然存在的蜜三胺(1)的完全脱氢的结构类似物的十八氢蜜三胺(4)的合成。该衍生物是第一个没有中心酸的米切尔敏型四杂芳基,因此构成了结构明显简化的米切尔敏类似物。总合成的关键步骤是双-O-三氟甲磺酸盐活化的中心双萘结构单元9与2eq。的双重偶联。异喹啉硼酸8的“α ”生成明显的立体化学纯形式的季戊基芳基11,其脱保护基团递送目标分子4。十八氢次氯胺酮(4)显示出良好的抗HIV活性,并且与天然michellamines相比,对恶性疟原虫的抗疟活性增强。