title: Koreoside A, a new nonholostane triterpene glycoside from the sea cucumber Cucumaria koraiensis.
abstract: The new triterpene glycoside koreoside A (1) has been isolated from the sea cucumber Cucumaria koraiensis. Koreoside A (1) is the first glycoside reported from holothurians that presents a delta(7) nonholostane aglycon without a lactone group and with a shortened side chain. Its structure has been elucidated by 13C and 1H NMR as well as FABMS studies.
authors.affiliation: Pacific Institute of Bioorganic Chemistry, Far Eastern Division of the Russian Academy of Sciences, Vladivostok, Russia. kav@piboc.marine.su
authors.forename: S A
authors.initials: SA
authors.lastname: Avilov
authors.forename: A I
authors.initials: AI
authors.lastname: Kalinovsky
authors.forename: V I
authors.initials: VI
authors.lastname: Kalinin
authors.forename: V A
authors.initials: VA
authors.lastname: Stonik
authors.forename: R
authors.initials: R
authors.lastname: Riguera
authors.forename: C
authors.initials: C
authors.lastname: Jiménez
mesh_terms: D000818:Animals; D002236:Carbohydrate Conformation; D002240:Carbohydrate Sequence; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D012616:Sea Cucumbers / Q000737:chemistry*; D016339:Spectrometry, Mass, Fast Atom Bombardment; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D006027:Glycosides; D014315:Triterpenes; C108202:koreoside A