Ontology highlight
ABSTRACT:
SUBMITTER: Ren Y
PROVIDER: S-EPMC2923493 | biostudies-other | 2010 Jul
REPOSITORIES: biostudies-other
Tetrahedron 20100701 29
A new biflavonoid (1), a new xanthone enantiomer (2), five new caged xanthones (3-7), and several known compounds were isolated from the stem bark of Garcinia lateriflora, collected in Indonesia. The structures of the new compounds were determined by analysis of spectroscopic data, and the absolute configuration of the caged xanthones was shown for the first time at carbons 5, 7, 8, 8a, 10a, and 27, by analysis of COSY and NOESY NMR and ECD spectra. The biflavonoids exhibited proteasome inhibito ...[more]