title: Cytotoxic Quassinoids from Odyendyea gabonensis Stem Bark: Isolation and High-Field NMR.
abstract: The stem bark of ODYENDYEA GABONENSIS Engl. (Simaroubaceae) has yielded five quassinoids, identified as ailanthinone ( 1), 2'-acetoxyglaucarubinone ( 2), glaucarubinone ( 4), 2'-acetoxyglaucarubin ( 5) and excelsin ( 6), the simple coumarin scopoletin and the alkaloid 8-hydroxycanthin-6-one ( 3). Highfield (1)H- and (13)C-NMR spectra were recorded where possible and results are tabulated.
authors.affiliation: Phytochemistry Research Laboratories, Department of Pharmacy (Pharmaceutical Chemistry), University of Strathclyde, Glasgow G1 1XW, Scotland, U.K.
authors.forename: P G
authors.initials: PG
authors.lastname: Waterman
authors.forename: S A
authors.initials: SA
authors.lastname: Ampofo