A common carbon skeleton bicyclo[9.3.1]pentadecatriene of taxachitrienes was synthesized in its des-methyl form in short steps. The key step was Nicholas-Hosomi type reaction in the acidic cyclization between ene-yne biscobalthexacarbonyl complex electrophile with allyltrimethylsilane nucleophile. Decomplexation of the biscobalthexacarbonyl was achieved with a tin hydride and NBS in 1,4-cyclohexadiene solvent.
                                    一种常见碳骨架的双环[9.3.1]十五碳
三烯的脱甲基形式在短时间内被合成出来。关键步骤是烯炔双二羰基羰基复合物亲电子体与烯丙基三甲基
硅烷亲核体之间的酸性环化中的尼古拉斯-霍索米式反应。在 1,4-Cyclohexadiene 溶剂中,用氢化
锡和 
NBS 实现了双羰基的解络合。