作者:P. Veeraraghavan Ramachandran、J. Subash Chandra、Bodhuri Prabhudas、Debarshi Pratihar、M.Venkat Ram Reddy
DOI:10.1039/b508001k
日期:——
of epothilone A via organoboranes have been described. A modified procedure for the large-scale preparation of B-gamma,gamma-dimethylallyldiisopinocampheylborane from prenyl alcohol has been developed. This reagent, upon reaction with various aldehydes, provides the corresponding alpha,alpha-dimethylhomoallylic alcohols in high enantioselectivities. The application of this reagent for the synthesis of
已经描述了通过有机硼烷合成埃坡霉素A的研究。已开发出一种从异戊烯醇大规模制备B-γ,γ-二甲基烯丙基亚砜基樟脑基硼烷的改进方法。与各种醛反应后,该试剂以高对映选择性提供相应的α,α-二甲基均烯丙基醇。已经证明了该试剂在合成埃博霉素的C1-C6亚基中的应用。或者,分子间和分子内不对称还原方案也已用于合成埃坡霉素A的C1-C6亚基。使用α-pine烯衍生的试剂合成埃坡霉素A的C7-C21片段,涉及不对称烷氧基烯丙基和巴豆基硼化也已经描述过了。