Effect of the allylic substituents on ring closing metathesis: the total synthesis of stagonolide B and 4-epi-stagonolide B
作者:Awadut G. Giri、Mohabul A. Mondal、Vedavati G. Puranik、Chepuri V. Ramana
DOI:10.1039/b916198h
日期:——
The total syntheses of stagonolide B and its 4-epimer were carried out to probe into how the relative stereochemistry of allylic hydroxy groups and their protecting groups influence the efficiency of the ring closing metathesis.
为了探究烯丙基羟基及其保护基团的相对立体化学如何影响闭环偏析的效率,我们进行了石杉内酯 B 及其 4-epimer 的全合成。
The Total Synthesis and Structural Revision of Stagonolide D
作者:Paresh M. Vadhadiya、Vedavati G. Puranik、C. V. Ramana
DOI:10.1021/jo202138g
日期:2012.3.2
The totalsynthesis of the putative structure of stagonolide D has been completed. The relative and absolute configuration of stagonolide D was established by synthesizing its optical antipode. The adopted strategy involves the construction of the central macrolide employing ring-closing metathesis (RCM), followed by selective protecting group manipulations and a final concomitant −OTBS deprotection