Four new highly oxygenated guaiane lactones, menverins A±D (1 ± 4), were isolated from the gorgonian Menella verrucosa (BRUNDIN) from the South China Sea. Their structures and relative configurations were elucidated on the basis of spectroscopic data. All compounds contain a conjugated alpha-methyl-substituted alpha, beta- unsaturated gamma-lactone moiety, a C(8)=C(9) conjugated with the gamma-lactone moiety, and an exocyclic methylene group at C(4) (trivial numbering).
Menverins A-D, new highly oxygenated guaiane lactones from Hainan gorgonian Menella verrucosa (BRUNDIN)
E Mollo;G Cimino
2004
Abstract
Four new highly oxygenated guaiane lactones, menverins A±D (1 ± 4), were isolated from the gorgonian Menella verrucosa (BRUNDIN) from the South China Sea. Their structures and relative configurations were elucidated on the basis of spectroscopic data. All compounds contain a conjugated alpha-methyl-substituted alpha, beta- unsaturated gamma-lactone moiety, a C(8)=C(9) conjugated with the gamma-lactone moiety, and an exocyclic methylene group at C(4) (trivial numbering).File in questo prodotto:
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