Nahocols and isonahocols, endothelin antagonists from the brown alga, sargassum autumnale
作者:Naoko Tsuchiya、Aiya Sato、Hideyuki Haruyama、Tohru Watanabe、Yasuteru Iijima
DOI:10.1016/s0031-9422(97)00476-7
日期:1998.7
Novel endothelin antagonists, nahocols A, A(1), B, C, D-1 and D-2, and isonahocols D-1 and D-2, were isolated from the brown alga, Sargassum autumnale. Their structures were determined through detailed analysis of NMR spectra and chemical reactions. Nahocols have an aryl prenyl ether structure, which are speculated to be biogenetic precursors of the ubiquitous prenyl hydroquinones or prenyl benzoquinones in the plant and animal kingdoms. (C) 1998 Elsevier Science Ltd. All rights reserved.