Taxane diterpenes 1. Control of relative and absolute stereochemistry in intramolecular pyrylium ylide-alkene cyclizations for the synthesis of taxol precursors
作者:William E. Bauta、John Booth、Mary E. Bos、Mark DeLuca、Louis Diorazio、Timothy J. Donohoe、Christopher Frost、Nicholas Magnus、Philip Magnus、José Mendoza、Philip Pye、James G. Tarrant、Stephen Thom、Feroze Ujjainwalla
DOI:10.1016/0040-4020(96)00867-8
日期:1996.11
Intramolecular pyrylium ylide-alkene cyclizations provide control of the absolute stereochemistry at the crucial C-19 angular methyl group, and leads to bicyclo[5.4.03,8]undecenones that contain the structural elements of the B/C rings of the taxanes.
分子内吡咯鎓内鎓盐-烯烃环化提供对关键的C-19角甲基的绝对立体化学的控制,并导致包含紫杉烷类B / C环结构元素的双环[5.4.0 3,8 ]十一碳烯。