12 research outputs found
Isolement et etude structurale de nouveaux diterpenes de l'alcyonaire xenia membranacea : synthese stereoselective de derives amino-2' imidazoliques
SIGLECNRS T Bordereau / INIST-CNRS - Institut de l'Information Scientifique et TechniqueFRFranc
Invertébrés Marins du Lagon Néo-calédonien, XII. Isolement et Étude Structurale de Nouveaux Diterpènes Extraits de l'Alcyonaire Xenia membranacea
Invertébrés Marins Du lagon Néo-Calédonien, XI. Les Desoxyhavannahines, Nouveaux Métabolites de Xenia membranaces
New xenicanes from Xenia viridis
The dichloromethane extract of Xenia viridis afforded two new xenicane diterpenoids (3 and 4) by silica gel chromatography. The oxirane ring of 3 was found to be susceptible to a slow ring opening under acidic conditions to afford 5. Their structures were elucidated by extensive 1D and 2D NMR spectroscopy