[Flavonoid glycosides from dried and nearly ripe fruits of Evodia rutaecarpa].

Objective: To study the chemical constituents from the dried and nearly ripe fruits of Evodia (Euodia) rutaecarpa.

Method: The compounds were separated and purified by solvent and chromatographic methods. Their structures were identified by spectroscopic techniques.

New glycosidic alkaloid from the nearly ripe fruits of Euodia rutaecarpa.

A new natural product, 10-hydroxyrutaecarpine (1), and a rarely new glycosidic alkaloid, rutaecarpine-10-O-rutinoside (2), along with the known compounds rutaecarpine (3), evodiamine, wuzhuyuamide-I, and dehydroevodiamine were isolated from the butanol fraction of 70% ethanol aqueous extract of the dried and nearly ripe fruits of Euodia rutaecarpa (Juss.) Benth. Their structures were elucidated on the basis of their spectroscopic data.

Simultaneous determination and pharmacokinetic analysis of seven alkaloids and two flavonoids from rat plasma by HPLC-DAD after oral administration of Wuzhuyu decoction.

A simple and sensitive high-performance liquid chromatographic method was developed for the simultaneous determination and pharmacokinetic analysis of seven alkaloids dehydroevodiamine (DHED), 10-hydroxyrutaecarpine (HDR), evodiamine (EDM), rutaecarpine (RCP), 1-methyl-2-n-nonyl-4(1H)quinolone (MNQ), evocarpine (ECP), and dihydroevocarpine (DHE), and two flavonoids isorhamnetin-7-O-rutinoside (RIM) and diosmetin-7-O-β-d-glucopyranoside (GRD) in rat plasma after oral administration of Wuzhuyu decoction. The flow rate was kept at 1.0 ml/min and the detection wavelength was set at 300 nm.