title: Dactyloquinones A and B, new sesquiterpenoid quinones from the Okinawan marine sponge Dactylospongia elegans.
abstract: Structurally unique new sesquiterpenoid quinones dactyloquinone A (1) and B (2), each possessing a dihydropyran moiety, were isolated from an Okinawan sponge Dactylospongia elegans, along with known sesquiterpenoid quinones. The structures of these compounds were determined by spectroscopic analysis.
authors.affiliation: School of Pharmacy, Tokyo University of Pharmacy and Life Science,1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Mitome
authors.forename: T
authors.initials: T
authors.lastname: Nagasawa
authors.forename: H
authors.initials: H
authors.lastname: Miyaoka
authors.forename: Y
authors.initials: Y
authors.lastname: Yamada
authors.forename: R W
authors.initials: RW
authors.lastname: van Soest
mesh_terms: D000818:Animals; D002851:Chromatography, High Pressure Liquid; D008968:Molecular Conformation; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D010139:Pacific Islands; D011161:Porifera / Q000737:chemistry*; D011714:Pyrans / Q000737:chemistry; D011809:Quinones / Q000737:chemistry / Q000302:isolation & purification*; D012717:Sesquiterpenes / Q000737:chemistry / Q000302:isolation & purification*; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D013237:Stereoisomerism
chemical_list: D011714:Pyrans; D011809:Quinones; D012717:Sesquiterpenes; C445788:dactyloquinone A; C445787:dactyloquinone B