A Formal Total Synthesis of Roseophilin: Cyclopentannelation Approach to the Macrocyclic Core
作者:Paul E. Harrington、Marcus A. Tius
DOI:10.1021/ol990124k
日期:1999.8.1
[formula: see text] The formal total synthesis of the macrocyclic core of roseophilin 4 has been accomplished in 12 steps from 5-hexenal 8. The cyclopentannelation reaction was used to form the aliphatic five-membered ring of 3. Diene 2 was assembled by means of a Stetter reaction. Ring-closing metathesis of 2, reduction, and Knorr reaction of the 1,4-diketone 5 gave the ketopyrrole 3.
[化学式:见正文]从5己烯醛8到12个步骤就完成了玫瑰亲和素4大环核的正式全合成。环戊烯化反应用于形成3的脂族五元环。斯特反应的手段。1,2,二酮5的闭环易位2,还原和克诺尔反应得到酮吡咯3。