Total Syntheses of (±)-Platencin and (−)-Platencin
作者:K. C. Nicolaou、G. Scott Tria、David J. Edmonds、Moumita Kar
DOI:10.1021/ja906801g
日期:2009.11.4
The secondary metabolites platensimycin and platencin, isolated from the bacterial strain Streptomyces platensis, represent a novel class of natural products exhibiting unique and potent antibacterial activity. Platencin, though structurally similar to platensimycin, has been found to operate through a slightly different mechanism of action involving the dual inhibition of lipid elongation enzymes
Total Synthesis of (−)-Platensimycin, a Novel Antibacterial Agent
作者:Arun K. Ghosh、Kai Xi
DOI:10.1021/jo802261f
日期:2009.2.6
platensimycin, a novel antibiotic natural product that inhibits bacterial β-ketoacyl-(acyl-carrier-protein) synthase (FabF), is described. Our synthetic strategy for the construction of the oxatetracyclic core involved an intramolecular Diels−Alder reaction. Our preliminary studies provided a complex tetracyclic product by first undergoing an interesting 1,5-hydride shift followed by a Diels−Alder reaction. Further
Chemoenzymatic Syntheses of Some Analogues of the Tricarbocyclic Core of the Anti-Bacterial Agent Platencin and the Biological Evaluation of Certain of their N-Arylpropionamide Derivatives
作者:Rehmani N. Muhammad、Ee Ling Chang、Alistair G. Draffan、Anthony C. Willis、Paul D. Carr、Martin G. Banwell
DOI:10.1071/ch18145
日期:——
those represented by compounds 14, 15, and 27, have been prepared and certain of these elaborated, through substrate-controlled enolate alkylation reactions, to analogues of the natural product. Preliminary biological evaluation of these analogues revealed that they are only weakly active anti-infective agents.