title: 19,19'-Diacyloxy Signature: An Atypical Level of Structural Evolution in Carotenoid Pigments.
abstract: We report the isolation from the green dinoflagellate Lepidodinium chlorophorum and structural characterization of a new carotenoid termed lepidoxanthin (1), determined to be (3S,5R,6S,3'R,6'R)-5,6-epoxy-19-(2-decenoyloxy)-19'-acetoxy-4',5'-didehydro-5,6,5',6'-tetrahydro-β,ε-carotene-3,3'-diol. Its until now unidentified 19,19'-diacyloxy substitution constitutes a chemical signature that can aid in unraveling the evolutionary course of this unicellular algae based on the proposed biosynthethic pathway.
authors: Instituto de Investigaciones Marinas (CSIC) , 36208 Vigo, Spain.
authors: Antonio
authors: A
authors: Gavalás-Olea
authors: Department of Organic Chemistry, Biomedical Research Center (CINBIO), and Southern Galicia Institute of Health Research (IISSG), Universidade de Vigo , 36310 Vigo, Spain.
authors: Susana
authors: S
authors: Álvarez
authors: Instituto de Investigaciones Marinas (CSIC) , 36208 Vigo, Spain.
authors: Pilar
authors: P
authors: Riobó
authors: Instituto Español de Oceanografía , 36390 Vigo, Spain.
authors: Francisco
authors: F
authors: Rodríguez
authors: Instituto de Investigaciones Marinas (CSIC) , 36208 Vigo, Spain.
authors: José L
authors: JL
authors: Garrido
authors: Department of Organic Chemistry, Biomedical Research Center (CINBIO), and Southern Galicia Institute of Health Research (IISSG), Universidade de Vigo , 36310 Vigo, Spain.
authors: Belén
authors: B
authors: Vaz