title: Mexicanolide limonoids from the Madagascan Meliaceae Quivisia papinae.
abstract: An investigation of the seeds of the Madagascan Meliaceae Quivisia papinae has yielded five mexicanolide group limonoids, together with two known mexicanolide limonoids and two known triterpenoids. Quivisianolide A 9 possesses a hitherto unreported 9alpha,11alpha-epoxide ring, quivisianolide B 10 the corresponding delta(9(11)) double bond, and quivisianone 11 is a 17-keto seco-ring D compound.
authors.affiliation: School of Chemistry, University of KwaZulu-Natal, Howard College Campus, Durban 4041, South Africa. coombesp@ukzn.ac.za
authors.forename: Philip H
authors.initials: PH
authors.lastname: Coombes
authors.forename: Dulcie A
authors.initials: DA
authors.lastname: Mulholland
authors.forename: Milijaona
authors.initials: M
authors.lastname: Randrianarivelojosia
mesh_terms: D036701:Limonins / Q000737:chemistry*; D008270:Madagascar; D029582:Meliaceae / Q000737:chemistry*; D015394:Molecular Structure; D012639:Seeds / Q000737:chemistry
chemical_list: D036701:Limonins