Structural revision of methyl tortuoate D, a bis-cembranoid from Hainan Sarcophyton tortuosum and its absolute stereochemistry.

TitleStructural revision of methyl tortuoate D, a bis-cembranoid from Hainan Sarcophyton tortuosum and its absolute stereochemistry.
Publication TypeJournal Article
Year of Publication2013
AuthorsLi Y-F, He L-L, Liu H-L, Liang L-F, Zhang H-B, Guo Y-W
JournalJournal of Asian natural products research
Volume15
Issue5
Pagination566-73
Date Published2013
Abstract

Methyl tortuoate D (1), together with five other known related bis-cembranoids, was isolated from Hainan soft coral Sarcophyton tortuosum. The structure of methyl tortuoate D (1a), firstly isolated and reported by Li et al. from the title organism, was corrected as 1 by an extensive analysis of its one-dimensional and two-dimensional nuclear magnetic resonance data and by comparison with those reported in the literature. In addition, lobophytone K (1b), recently isolated from Hainan soft coral Lobophytum pauciflorum by Lin et al., was proved to be the same compound as 1 and 1a. The absolute configuration of 1 was determined by comparing its electronic circular dichroism curve with that of co-occurring ximaolide A (2).

DOI10.1155/2013/798468
Alternate JournalJ Asian Nat Prod Res