3 результати
Oleanolic acid (1) was identified as an anti-HIV principle from several plants, including Rosa woodsii (leaves), Prosopis glandulosa (leaves and twigs), Phoradendron juniperinum (whole plant), Syzygium claviflorum (leaves), Hyptis capitata (whole plant), and Ternstromia gymnanthera (aerial part). It
OBJECTIVE
To investigate the chemical constituents from the fruit of Rosa bella and its bioactivity.
METHODS
The compounds were isolated from the methanol extract by column chromatography, then identified by 1H, 13C NMR and by comparison with authentic samples. The unorganized hoptoad heart was used
The constituents in 95% ethanol extract of the root of Rosa cymosa Tratt were purified by column chromatography techniques, leading to isolation of eleven triterpenes. Their structures were elucidated by spectroscopic data as pomolic acid (1), fupenzic acid (2), ursolic acid (3), euscaphic acid (4),