Mortiamides A–D, Cyclic Heptapeptides from a Novel <i>Mortierella</i> sp. Obtained from Frobisher Bay
作者:Alyssa L. Grunwald、Fabrice Berrue、Andrew W. Robertson、David P. Overy、Russell G. Kerr
DOI:10.1021/acs.jnatprod.7b00383
日期:2017.10.27
structures of the compounds were elucidated by NMR spectroscopy and tandem mass spectrometry. The absolute configurations of the amino acids were determined using Marfey’s method. Localization of l and d amino acids within each compound was ascertained by retention time comparison of the partial hydrosylate products of each compound to synthesized dipeptide standards using LC-HRMS. Compounds 1–4 did not