Apratoxin E, a Cytotoxic Peptolide from a Guamanian Collection of the Marine Cyanobacterium <i>Lyngbya bouillonii</i>
作者:Susan Matthew、Peter J. Schupp、Hendrik Luesch
DOI:10.1021/np700717s
日期:2008.6.1
planar structure of 1 was elucidated by NMR spectroscopic analysis and mass spectrometry. Configurationalassignments of stereocenters in the peptide portion were made by chiral HPLC analysis of the acid hydrolysate. The relativeconfiguration in the polyketide moiety was assigned by comparison of NMR data including proton-proton couplingconstants with those of the known analogues. Apratoxin E (1) displayed