title: Isolation of psammaplin A 11'-sulfate and bisaprasin 11'-sulfate from the marine sponge Aplysinella rhax.
abstract: Psammaplin A 11'-sulfate (3) and bisaprasin 11'-sulfate (4) have been isolated from the marine sponge Aplysinella rhax, along with the known psammaplin A (1). Their structures were determined on the basis of their spectroscopic data. Compounds 1 and 3 inhibited [(3)H]1,3-dipropyl-8-cyclopentylxanthine binding to rat-brain adenosine A(1) receptors.
authors.affiliation: Queensland Pharmaceutical Research Institute, Griffith University, Brisbane, Australia 4111.
authors.forename: N B
authors.initials: NB
authors.lastname: Pham
authors.forename: M S
authors.initials: MS
authors.lastname: Butler
authors.forename: R J
authors.initials: RJ
authors.lastname: Quinn
mesh_terms: D000818:Animals; D015394:Molecular Structure; D011161:Porifera / Q000737:chemistry*; D051381:Rats; D013057:Spectrum Analysis; D013463:Sulfuric Acid Esters / Q000737:chemistry / Q000302:isolation & purification*; D014443:Tyrosine / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification
chemical_list: D013463:Sulfuric Acid Esters; C407994:bisaprasin 11'-sulfate; D014443:Tyrosine