Total Synthesis of Phorboxazole A. 2. Assembly of Subunits and Completion of the Synthesis
作者:James D. White、Tae Hee Lee、Punlop Kuntiyong
DOI:10.1021/ol062531j
日期:2006.12.1
[Structure: see text] Subunits of phorboxazole A containing C1-C2, C3-C8, C9-C19, C20-C32, C33-C41, and C42-C46 were connected in a sequence that first linked C32 with C33 and then C41 with C42. A C3-C8 fragment was joined to C9-C19, and the assembled unit was then joined with the left half of 1. Closure of the macrolide was accomplished by esterification of the C24 alcohol followed by intramolecular
[结构:见正文]含有C1-C2,C3-C8,C9-C19,C20-C32,C33-C41和C42-C46的佛波唑A的亚基的连接顺序为:先将C32与C33连接,然后再将C41与C33连接C42。将C3-C8片段连接到C9-C19,然后将组装好的单元与1的左半部分连接。大环内酯的封闭是通过C24醇的酯化,然后进行分子内Horner-Wadsworth-Emmons缩合来完成的。 (E)-C 2 -C 3烯烃。