title: New loliolide derivatives from the brown alga Undaria pinnatifida.
abstract: Seven carotenoid metabolites including five loliolide derivatives have been isolated from the brown alga Undaria pinnatifida, including three new compounds. Structures of these compounds were confirmed by spectroscopic analyses and literature data.
authors.affiliation: Department of Chemistry, College of Science and Engineering, Aoyama Gakuin University, 6-16-1 Chitosedai, Setagaya, Tokyo, 157-8572, Japan. kimura@candy.chem.aoyama.ac.jp
authors.forename: Junji
authors.initials: J
authors.lastname: Kimura
authors.forename: Noritsugu
authors.initials: N
authors.lastname: Maki
mesh_terms: D002338:Carotenoids / Q000737:chemistry / Q000302:isolation & purification*; D002851:Chromatography, High Pressure Liquid; D007564:Japan; D008968:Molecular Conformation; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D000459:Phaeophyceae / Q000737:chemistry*; D012624:Seaweed / Q000737:chemistry*; D013055:Spectrophotometry, Infrared; D013237:Stereoisomerism; D013729:Terpenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D013729:Terpenes; D002338:Carotenoids