title: Isolation and characterization of kallosin A, a novel rearranged pseudopterane diterpenoid from the Caribbean sea plume Pseudopterogorgia kallos (Bielschowsky).
abstract: The Caribbean alcyonacean Pseudopterogorgia kallos is shown to contain a novel rearranged pseudopterane diterpene, kallosin A (1), possessing several unusual structural features. In addition to having two distinct 2(3H)- and 2(5H)-furanone moieties, kallosin A is based on a new carbon skeleton. The structural assignment of 1 was based mainly on 1D and 2D NMR spectral data and was further supported by accurate mass measurement and single-crystal X-ray diffraction analysis.
authors.affiliation: Department of Chemistry, University of Puerto Rico, P.O. Box 23346, U.P.R. Station, San Juan, PR 00931-3346, USA.
authors.forename: Jeffrey
authors.initials: J
authors.lastname: Marrero
authors.forename: Abimael D
authors.initials: AD
authors.lastname: Rodríguez
authors.forename: Peter
authors.initials: P
authors.lastname: Baran
authors.forename: Raphael G
authors.initials: RG
authors.lastname: Raptis
mesh_terms: D000818:Animals; D037421:Anthozoa / Q000737:chemistry*; D001156:Artemia / Q000187:drug effects; D017691:Caribbean Region; D018360:Crystallography, X-Ray; D004224:Diterpenes / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular
chemical_list: D004224:Diterpenes; C480479:kallosin A