title: Polypropionates from the South African marine mollusk Siphonaria oculus.
abstract: Three new polypropionate metabolites, 6Z,8E-Δ(8)-siphonarienfuranone (1), 6E,8E-Δ(8)-siphonarienfuranone (2), and 6E,8E-3-hydroxy-4,6,8,10,12-pentamethylpentadeca-6,8-dien-5-one (3), and the known polypropionate siphonarienfuranone (4) were isolated from the intertidal South African marine mollusk Siphonaria oculus. Evidence is presented to suggest that 1, 2, and 4 may cyclize from an acylic precursor on chromatographic workup of the acetone extract of this mollusk.
authors.affiliation: Department of Chemistry, Rhodes University, Grahamstown, 6140, South Africa.
authors.forename: Candice L
authors.initials: CL
authors.lastname: Bromley
authors.forename: Wendy L
authors.initials: WL
authors.lastname: Popplewell
authors.forename: Shirley C
authors.initials: SC
authors.lastname: Pinchuck
authors.forename: Alan N
authors.initials: AN
authors.lastname: Hodgson
authors.forename: Michael T
authors.initials: MT
authors.lastname: Davies-Coleman
mesh_terms: D000818:Animals; D005663:Furans / Q000737:chemistry / Q000302:isolation & purification*; D008386:Marine Biology; D015394:Molecular Structure; D008974:Mollusca / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry / Q000302:isolation & purification*; D011422:Propionates / Q000737:chemistry / Q000302:isolation & purification*; D013019:South Africa; D013237:Stereoisomerism
chemical_list: D005663:Furans; D011108:Polymers; D011422:Propionates