RESUMO
Nine previously undescribed dichapetalin-type triterpenoids (1-9), along with 12 reported compounds (10-21), were isolated from the twigs of Dichapetalum gelonioides. Their chemical structures were mainly elucidated by comprehensive analysis of HRMS, 1D and 2D NMR spectroscopic data. The absolute configuration of compound 1 was further determined based on single-crystal X-ray diffraction. In addition, a part of compounds were evaluated the effects of inhibitory NO production in LPS-induced RAW264.7 macrophages.
Assuntos
Anti-Inflamatórios/farmacologia , Malpighiales/química , Triterpenos/farmacologia , Animais , Anti-Inflamatórios/isolamento & purificação , China , Camundongos , Estrutura Molecular , Óxido Nítrico/metabolismo , Compostos Fitoquímicos/isolamento & purificação , Compostos Fitoquímicos/farmacologia , Células RAW 264.7 , Triterpenos/isolamento & purificaçãoRESUMO
The present study was designed to investigate the chemical constituents of the fruit of Citrus aurantium L.. The compounds were isolated and purified by various chromatographic techniques, and their structures were elucidated on the basis of physicochemical properties and spectral data. Two new phenolic glycosides (compounds 1 and 2) were obtained and identified as 1-O-3, 5-dihydroxyphenyl-(6-O-4-hydroxybenzoyl)-ß-D-glucopyranoside (1) and 1-O-3, 5-dihydroxyphenyl-(6-O-3-methoxy-4-hydroxy benzoyl)-ß-D-glucopyranoside (2), respectively.
Assuntos
Citrus/química , Glucosídeos/isolamento & purificação , Glicosídeos/isolamento & purificação , Extratos Vegetais/química , Frutas/química , Glucosídeos/química , Glicosídeos/química , Estrutura Molecular , Fenóis/química , Fenóis/isolamento & purificaçãoRESUMO
To study the chemical component groups with toxicity alleviation effect to Realgar in Niuhuang Jiedu tablet based on ¹H-NMR metabonomics. Twenty-four male Wistar rats were divided into four groupsï¼ control group, R group (treated with Realgar), RRSPG group (treated with Realgar, the root and rhizoma of Rheum palmatum, the root of Scutellaria baicalensis, the root of Platycodon grandiflorum and the root and rhizoma of Glycyrrhiza uralensis) and RC group (treated with total anthraquinones from the root and rhizoma of R. palmatum, total flavonoids from the root of S. baicalensis, total saponins from the root of P. grandiflorum, total flavonoids and saponins from the root and rhizoma of G. uralensis). Based on ¹H-NMR spectra of urine and serum from rats, PLS-DA was performed to identify different metabolic profiles.The metabolic profiles of R group were different from that of control group, while the metabolic profiles of RC group were almost similar to control group.Total anthraquinones from the root and rhizoma of R. palmatum, total flavonoids from the root of S. baicalensis, total saponins from the root of P. grandiflorum, total flavonoids and saponins from the root and rhizoma of G. uralensis regulated energy, choline and amino acid metabolism and gut flora disorder affected by realgar's toxicity.