Hapalocyclamide: a novel phytotoxic hexapeptide of the cyanobacterium Hapalosiphon sp.
作者:Intira Koodkaew、Shigeru Matsuyama、Yukari Sunohara、Hiroshi Matsumoto
DOI:10.1016/j.tetlet.2011.12.048
日期:2012.2
Hapalocyclamide, a novel oxazole-, thiazole- and thiazoline-containing cyclic hexapeptide, was isolated from the terrestrial cyanobacterium Hapalosiphon sp., and which showed phytotoxic activity on lettuce seedling growth. The gross structure of hapalocyclamide was established from spectroscopic data and chemical degradation. The absolute stereochemistry was determined by Marfey's analysis. Hapalocyclamide was established as cyclo-thiazole-L-alanine-oxazole-D-alanine-D-thiazoline-D-phenylalanine. (C) 2011 Elsevier Ltd. All rights reserved.