Chemical and Pharmaceutical Bulletin
Online ISSN : 1347-5223
Print ISSN : 0009-2363
Marine Natural Products. XII. On the Chemical Constituents of the Okinawan Marine Sponge Hymeniacidon aldis
ISAO KITAGAWAMOTOMASA KOBAYASHIKANEYUKI KITANAKAMASARU KIDOYOSHIMASA KYOGOKU
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1983 Volume 31 Issue 7 Pages 2321-2328

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Abstract

Three peptide-like yellow compounds (1, 2, 3) containing a guanidine moiety, one of which (named hymenialdisine, 2) is a monobrominated derivative, and six 3β-hydroxymethyl-A-norsterane derivatives [purified as the acetates : 4a, 5a, 6a, 7a (a mixture of two compounds), and 8a] were isolated from the Okinawan marine sponge Hymeniacidon aldis and their structures were elucidated on the basis of physicochemical evidence including the X-ray crystallographic analysis of 2.

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