A carbohydrate approach for the synthesis of tetrahydropyran containing C16–C29 fragment of sorangicin A
作者:P. Srihari、B. Kumaraswamy、J.S. Yadav
DOI:10.1016/j.tet.2009.06.035
日期:2009.8
A carbohydrate derived synthesis of C16–C29 fragment of sorangicin A is described utilizing regioselective epoxide opening, segment-coupled Prins cyclization reaction and cross metathesis as the key steps.
利用区域选择性环氧化物开口,链段偶联的Prins环化反应和交叉复分解作为关键步骤,描述了碳水化合物衍生的Sorangicin A C16–C29片段的合成方法。
(+)-Sorangicin A Synthetic Studies. Construction of the C(1−15) and C(16−29) Subtargets
作者:Amos B. Smith、Richard J. Fox、John A. Vanecko
DOI:10.1021/ol051119l
日期:2005.7.1
[structure: see text] Effective stereocontrolled syntheses of subtargets (-)-2 and (-)-4, comprising respectively the C(16-29) and C(1-15) tetrahydropyran and dihydropyran moieties of the potent antibiotic (+)-sorangicin A (1), have been achieved. The cornerstone for the synthesis of (-)-2 involved an aldol tactic exploiting 1,4-induction, followed in turn by an acid-mediated cyclization/ketalization