title: Tetranortriterpenoid derivatives from Turraea parvifolia (Meliaceae).
abstract: The methanol extract of the seeds of Turraea parvifolia has yielded seven novel triterpenoid derivatives: 12alpha-acetoxyazadironolide, turraparvin A (12alpha-acetoxy-7alpha,23-dihydroxy-24,25,26,27-tetranor-3-oxoapotirucalla-1,14,20(22)-trien-21,23-olide), turraparvin B (12alpha-acetoxy-7alpha,21-dihydroxy-24,25,26,27-tetranor-3-oxoapotirucalla-1,14,20(22)-trien-23,21-olide), turraparvin C (7alpha,12alpha-diacetoxy-21-hydroxy-24,25,26,27-tetranor-3-oxoapotirucalla-1,14,20(22)-trien-23,21-olide), 11-epi-21-hydroxytoonacilide, 11-epi-23-hydroxytoonacilide and turraparvin D (12alpha-acetoxy-7alpha-hydroxy-24,25,26,27-tetranor-3-oxoapotirucalla-1,14,20(22)-trien-21,23-lactam).
authors.affiliation: Natural Products Research Group, University of Natal, Durban, 4041, South Africa.
authors.forename: Peter K
authors.initials: PK
authors.lastname: Cheplogoi
authors.forename: Dulcie A
authors.initials: DA
authors.lastname: Mulholland
mesh_terms: D036701:Limonins / Q000737:chemistry* / Q000302:isolation & purification; D029582:Meliaceae / Q000737:chemistry*; D019906:Nuclear Magnetic Resonance, Biomolecular; D012639:Seeds / Q000737:chemistry
chemical_list: D036701:Limonins