title: N(3),5'-cycloxanthosine, the first natural occurrence of a cyclonucleoside.
abstract: An Eryus sp. of marine sponge from the Great Australian Bight has yielded the first reported natural occurrence of a cyclonucleoside, N(3),5'-cycloxanthosine. The structure of N(3),5'-cycloxanthosine was confirmed by detailed spectroscopic analysis and total synthesis.
authors.affiliation: Centre for Molecular Biodiversity, Institute for Molecular Bioscience, The University of Queensland, St Lucia, Queensland, 4072, Australia. r.capon@imb.uq.edu.au
authors.forename: Robert J
authors.initials: RJ
authors.lastname: Capon
authors.forename: Nicholas S
authors.initials: NS
authors.lastname: Trotter
mesh_terms: D000818:Animals; D001315:Australia; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D011161:Porifera / Q000737:chemistry*; D012263:Ribonucleosides / Q000138:chemical synthesis / Q000737:chemistry / Q000302:isolation & purification*; D014364:Tryptophan / Q000031:analogs & derivatives* / Q000138:chemical synthesis / Q000737:chemistry / Q000302:isolation & purification; D014970:Xanthines / Q000138:chemical synthesis / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: C506498:N(3),5'-cycloxanthosine; D012263:Ribonucleosides; D014970:Xanthines; D014364:Tryptophan; C005893:xanthosine