title: New erythrolides from the Caribbean gorgonian octocoral Erythropodium caribaeorum.
abstract: Seven new briarane diterpenes, erythrolides K-Q (1-7), as well as the known compounds erythrolides A, B, C, F, and J have been isolated from samples of the Caribbean gorgonian Erythropodium caribaeorumcollected at Buccoo Reef and Flying Reef, Tobago. The structures of the new compounds were determined by high-resolution 1H and 13C NMR spectroscopy utilizing COSY, HMBC, HMQC, and NOESY experiments. The structures of erythrolides K and P were confirmed and their relative stereochemistry determined by X-ray crystallographic analysis.
authors.affiliation: Department of Chemistry, University of the West Indies, St. Augustine, Trinidad and Tobago.
authors.forename: Darryl
authors.initials: D
authors.lastname: Banjoo
authors.forename: Baldwin S
authors.initials: BS
authors.lastname: Mootoo
authors.forename: Russel S
authors.initials: RS
authors.lastname: Ramsewak
authors.forename: Rawatee
authors.initials: R
authors.lastname: Sharma
authors.forename: Alan J
authors.initials: AJ
authors.lastname: Lough
authors.forename: Stewart
authors.initials: S
authors.lastname: McLean
authors.forename: William F
authors.initials: WF
authors.lastname: Reynolds
mesh_terms: D000818:Animals; D002851:Chromatography, High Pressure Liquid; D003063:Cnidaria / Q000737:chemistry*; D018360:Crystallography, X-Ray; D004224:Diterpenes / Q000737:chemistry / Q000302:isolation & purification*; D008968:Molecular Conformation; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D013056:Spectrophotometry, Ultraviolet; D013237:Stereoisomerism; D014300:Trinidad and Tobago
chemical_list: D004224:Diterpenes