Total Synthesis of the Putative Structure of Nagelamide D
作者:Manojkumar R. Bhandari、Rasapalli Sivappa、Carl J. Lovely
DOI:10.1021/ol9001762
日期:2009.4.2
A totalsynthesis of the putativestructure of nagelamide D from imidazole is described. A Stille cross-coupling is used to construct the bis imidazole skeleton, and the pyrrolecarboxamides are introduced via a double Mitsunobu reaction using a pyrrolehydantoin derivative. Discrepancies between the published spectroscopic data and that reported in the literature cast doubts either on the assigned structure
描述了从咪唑全合成 nagelamide D 的推定结构。Stille 交叉偶联用于构建双咪唑骨架,并通过使用吡咯乙内酰脲衍生物的双光信反应引入吡咯甲酰胺。已发表的光谱数据与文献中报告的数据之间的差异使人们对指定的结构或报告的数据产生怀疑。
An Approach to the Oxazoline-Containing Fragments of the Oroidin Dimers Nagelamide R and T
A tandem hydrolysis-intramolecular nucleophilicsubstitution reaction provides an expedient synthesis of the oxazoline moiety found in the oroidin dimers, nagelamide R and the recently isolated nagelamide T.
串联水解 - 分子内亲核取代反应提供了在 oroidin 二聚体、nagelamide R 和最近分离的 nagelamide T 中发现的恶唑啉部分的便利合成。
Studies toward the Total Synthesis of Nagelamide K
作者:Biao Jiang、Jue Wang、Zuo-gang Huang
DOI:10.1021/ol3005886
日期:2012.4.20
A stereocontrolled strategy toward the synthesis of nagelamide K has been developed. The dimeric imidazole acrylate, diimidazolidenesuccinate, was constructed as a synthetic precursor by a Ni-catalyzed coupling reaction; the microwave-promoted intramolecular aza-Michael addition afforded the imidazo[1,5-a]pyridine core structure of nagelamide K in high stereoselectivity. A detaurine-dediamino analogue of nagelamide K has been prepared.