The chemical investigation of the methanolic root extract of (P. Beauv.) Gilg exhibited two new 30-norfriedelane triterpenes, glaucalactones A and B (), together with eight known compounds, caloncobalactone (), friedelin (), friedelanol ), 3-oxo-friedelan-28-oic acid (), stigmasterol (), -sitosterol (), -sitosterol-3---D-glucopyranoside () and pentacosanoic acid ().
View Article and Find Full Text PDFThe phytochemical investigation of the methanolic extracts of roots, stem bark, leaves and twigs of has led to the isolation of one new friedelane triterpene, lacefriedelic acid or 3,23-dihydroxy D:A-friedooleanan-28-oic acid () and one new prenylated xanthone, lacexanthone or 4,7-dihydroxy-2,3,3,9,9-pentamethyl-2,2-dihydrofurano[2,3-a]pyrano[2,3-i]xanthen-13()-one () alongside twenty-four known compounds. Compounds - are reported here for the first time from the genus . The structures of all compounds were determined by spectroscopic analyses and X-ray crystallography.
View Article and Find Full Text PDF