Conformational restriction of methionyl tRNA synthetase inhibitors leading to analogues with potent inhibition and excellent gram-Positive antibacterial activity
作者:Richard L. Jarvest、John M. Berge、Pamela Brown、Catherine S.V. Houge-Frydrych、Peter J. O'Hanlon、David J. McNair、Andrew J. Pope、Stephen Rittenhouse
DOI:10.1016/s0960-894x(03)00093-3
日期:2003.4
Conformationally restricted analogues of the central linker unit of bacterial methionyl tRNA synthetase (MRS) inhibitors have been prepared. The (IS,2R)-cyclopentylmethyl moiety was identified as the preferred cyclic linker, with significant diastereo- and enantio selectivity of activity. Combination of this linker with an optimal substituted aryl right-hand side has resulted in a compound with exceptionally good antibacterial activity against staphylococci and enterococci, including antibiotic resistant strains. (C) 2003 Elsevier Science Ltd. All rights reserved.
Determination by Enantioselective Synthesis of the Absolute Configuration of CPE, a Potential Intermediate in Coronatine Biosynthesis
作者:Tao、Ronald J. Parry
DOI:10.1021/ol0165037
日期:2001.9.1
enantioselective synthesis of the methyl ester of CPE, a potential intermediate in coronatine (COR) biosynthesis, is described. Comparison of the specific rotation of the synthetic ester with that of the methyl ester of natural CPE established that the latter possesses the (R) configuration. This configuration is the same as that found at the corresponding asymmetric center of coronatine. Structure: see