【摘 要】
：
Two new norisoprenoid derivatives have been isolated from the red alga Gymnogongrus flabelliformis. Their structures were elucidated as (3R, 6R, 7E)-(+)-3-O-phe
【机 构】
：
Institute of Oceanology,Graduate School of the Chinese Academy of Sciences,Institute of Materia Medi
【基金项目】
：
国家自然科学基金;国家自然科学基金;教育部跨世纪优秀人才培养计划
论文部分内容阅读
Two new norisoprenoid derivatives have been isolated from the red alga Gymnogongrus flabelliformis. Their structures were elucidated as (3R, 6R, 7E)-(+)-3-O-phenylacetyl-4,7-megastigmadiene-9-one and (3R,7E)-(-)-3-O-phenylacetyl-5,7-megastigmadiene-9-one, respectively, by spectroscopic methods including HRMS, 1D and 2D NMR techniques.
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