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Stellettin A, a new triterpenoid pigment from the marine sponge Stelletta tenuis.
A new isomalabaricane triterpenoid, stellettin A, was isolated from the sponge Stelletta tenuis collected off Hainan Island, People's Republic of China by analysis of its spectral data and reference to related compounds.
A new ceramide from a new species of Spongia sponge
Sphingolipids have been isolated from various marine organisms including algae, coelenterates, echinoderms, sponges, and tunicates. They are increasingly becoming important compounds because of their…
New norsesquiterpene and sesquiterpene from a soft coral of the genus Nephthea
A new norsesquiterpene nephthediol and a new sesquiterpine nephthetetraol were isolated with guaianediol from a soft coral of the genus Nephthea on the basis of spectroscopic methods.
Cytotoxic diterpenoids from the soft coral Sinularia microclavata.
The soft coral Sinularia microclavata collected from the bay of Sanya, Hainan Island, China, yielded a new diterpenoid, micro clavatin, and a known cembranolide, capillolide, which showed cytotoxic activities against tumor cell lines KB and MCF.
Flavonoids from the red alga Acanthophora spicifera
Two new flavonoids, acanthophorin A and A and B, along with three known compounds tiliroside, (-)-catechin and quercetin were isolated from the red alga Acanthophora spicifera and showed significant antioxidant activity.
Scalarane-type bishomosester terpenes from the sponge Phyllospongia foliascens.
- X. Fu, L. Zeng, J. Su, M. Pais, P. Potier
- Chemistry, Environmental ScienceJournal of natural products
- 1 November 1992
Five new 20,24-bishomoscalarane sesterterpenes, phyllactones A , B , C , D , and E , are reported from the sponge Phyllospongia foliascens collected in the waters of the Nansha Islands…
Two New Sesterterpenes from a South China Sea Sponge
Two new scalarane derivatives, phyllactones F and G, have been isolated from the sponge Phyllospongia foliascens. Compounds 1 and 2 are anomers whose structures were determined on the basis of…
Two new sesquiterpenoids from the soft coral Sinularia polydactyla (Ehreberg)
Polydactin A showed moderate cytotoxic activities against human oral epidermoid carcinoma cell lines (KB) and human breast carcinoma (MCF) tumour cells lines (in vitro).
Two new bioactive sesquiterpenes from the soft coral Sinularia sp.
Two new sesquiterpenes have been isolated from the ethyl acetate soluble portion of the soft coral Sinularia sp.
Patagonicol: a diterpenoid from the Chinese soft coral Alcyonium patagonicum.
Patagonicol, a diterpenoid with a eunicellin skeleton, was isolated from the soft coral Alcyonium patagonicum by X-ray diffraction and detailed 1H and 13C assignments were made via 1D and 2D nmr experiments.