作者:Subhash P. Chavan、Rasapalli Sivappa
DOI:10.1016/j.tetlet.2004.03.089
日期:2004.5
A novel, efficient total synthesis of the naturally occurring antiviral nothapodytine B (2, mappicine ketone) is reported. The approach is based on the successful implementation of the Johnson orthoester rearrangement of allylic alcohol 7 for assembly of a pyridone D ring precursor with the necessary functionalities. Nothapodytine B is converted into mappicine 3 by NaBH4 reduction.
报道了一种新颖,有效的全天然合成的抗病毒非亲和素B(2,Mappicine酮)的合成方法。该方法基于成功实现烯丙基醇7的约翰逊原酸酯重排,以组装具有必要功能性的吡啶酮D环前体。通过NaBH 4还原,将非苦参碱B转化为马皮甜碱3。