Preparation of an ABC tricyclic model of the cylindrospermopsin alkaloids via a biomimetically inspired pathway
作者:Daniel. M. Evans、Peter N. Horton、Michael B. Hursthouse、Patrick. J. Murphy
DOI:10.1039/c4ra03031a
日期:——
The protected guanidine18was convertedviaa 4-step sequence (Boc-deprotection, tethered Biginelli condensation, deallylation/decarboxylation and reduction) to give the tricyclic guanidines26and27, models of the tricyclic core of cylindrospermopsin1.
A biomimetic approach to the cylindrospermopsin alkaloids
作者:Daniel M. Evans、Patrick J. Murphy
DOI:10.1039/c0cc05034b
日期:——
The tethered Biginelli condensation between hemiaminal 21 and beta-keto ester 22 is reported, leading to a model tricyclic core of the cylindrospermopsin alkaloids.