Porpoisamides A and B, two novel epimeric cyclic depsipeptides from a Florida Keys collection of Lyngbya sp.
作者:Theresa Meickle、Sarath P. Gunasekera、Yanxia Liu、Hendrik Luesch、Valerie J. Paul
DOI:10.1016/j.bmc.2011.05.051
日期:2011.11
NMR-guided fractionation of a non-polar extract of a Florida Keys collection of Lyngbya sp. resulted in the isolation of two novel epimeric cyclic depsipeptides, porpoisamides A (1) and B (2). The planar structures of these compounds were determined using NMR spectroscopic techniques. The absolute configurations of amino and hydroxy acid subunits were assigned by enantioselective HPLC analysis. These