Seeds of Turreanthus africanus afforded two labdane (1, 2) diterpenoids and a limonoid (3). Their structures were elucidated by extensive NMR spectroscopy and mass spectrometry. Examination of the methylene chloride soluble portion of the acetone extract of the seeds of Turreanthus africanus yielded two labdane diterpenoids 12,15-epoxylabda-8(17),12,14-trien-16-al (1) and 16-acetoxy-12(R),15-epoxy-15β-hydroxylabda-8(17),13(16)-diene (2) and a limonoid, 17-epi 12-dehydroxyheudebolin (3). Structures elucidation was based on the analysis of spectroscopic data.

Additional Metadata
Keywords Labdane, Limonoid, Meliaceae, Turreanthus africanus
Persistent URL
Journal Phytochemistry
Tane, P. (Pierre), Akam, M.T. (Mac Thomas), Tsopmo, A, Ndi, C.P. (Chi P.), & Sterner, O. (Olov). (2004). Two labdane diterpenoids and a seco-tetranortriterpenoid from Turreanthus africanus. Phytochemistry, 65(23), 3083–3087. doi:10.1016/j.phytochem.2004.10.007