Abstract
Two new 11,20-epoxybriaranes, fragilides P (1) and Q (2), as well as two known analogues, robustolide F (3) and juncin Z (4), were obtained from the gorgonian coral Junceella fragilis. The structures, including the absolute configurations of briaranes 1 and 2, were elucidated by using spectroscopic methods and comparing the spectroscopic and rotation data with those of known related analogues. Briarane 4 decreased the generation of superoxide anions by human neutrophils. The propionate group in 1 is rarely found.
Subject
Chemistry (miscellaneous),Analytical Chemistry,Organic Chemistry,Physical and Theoretical Chemistry,Molecular Medicine,Drug Discovery,Pharmaceutical Science
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