| isoflavonoids and other compounds from psorothamnus arborescens with antiprotozoal activities. | bioactivity-guided fractionation of the root extract of psorothamnus arborescens yielded the new isoflavone 5,7,3',4'-tetrahydroxy-2'-(3,3-dimethylallyl)isoflavone (1a) and the new 2-arylbenzofuran 2-(2'-hydroxy-4',5'-methylenedioxyphenyl)-6-methoxybenzofuran-3-carbaldehyde (2), together with seven known compounds, including three isoflavones, fremontin (3a), glycyrrhisoflavone (4a), and calycosin (5), two pterocarpans, maackiain (6) and 4-hydroxymaackiain (7), one triterpene, oleanolic acid (8) ... | 2006 | 16441066 |
| antiparasitic activity of c-geranyl flavonoids from mimulus bigelovii. | bioactivity-directed fractionation of the meoh fraction of the extract of mimulus bigelovii by means of an axenic leishmania amastigote assay and chromatographic techniques resulted in the isolation of four c-geranyl flavanones, diplacone (1), 3'-o-methyldiplacone (2), 4'-o-methyldiplacone (3), 3'-o-methyldiplacol (4), together with a geranylated flavone, cannflavin a (5). these compounds were separated from m. bigelovii for the first time. all compounds showed moderate antileishmanial activity ... | 2011 | 21796699 |