Antimicrobial and Cytotoxic Activities of Constituents from the Fruit of L. Benth (Fabaceae).

Twenty-two compounds were isolated from the fruit of including one unprecedented, rare amino acid-derived zwitterionic and one new flavone derivative. The isolation was performed on repeated column chromatography over silica gel and their structures were determined by 1D-, 2D-NMR and HR-ESI-MS spectra together with reported data in the literature. The chemophenetic significance is also discussed.

Cytotoxicity of a new tirucallane derivative isolated from K. Schum stem bark.

One new tirucallan derivative, leutcharic acid () was isolated from stem bark together with the known compounds 3-oxo-22-hydroxyhopane (), 3,4-secotirucalla-4(28),7,24-trien-3,21-dioic acid (), 3-oxotirucalla-7,24-dien-21-oic acid (), lupeol (), -sitosterol () and stigmasterol (). The structures of the isolated compounds were elucidated using 1 D and 2 D NMR spectroscopy in combination with literature data. To the best of our knowledge, this is the first report on the cytotoxic properties' constituents of .