RESUMEN
In the present study, three compounds were isolated from Argyreia acuta, among them, compounds 1 and 2 were new and Compounds 1 and 3 were isomers. They were separated by several types of columns, such as normal phase, RP, size exclusion and preparative HPLC, and their structures were elucidated by several spectroscopic methods, such as 1D- and 2D-NMR and HR-TOF-MS.
Asunto(s)
Convolvulaceae , Química , Medicamentos Herbarios Chinos , Química , Glicósidos , Química , Isomerismo , Espectrometría de Masas , Estructura Molecular , Resonancia Magnética Nuclear Biomolecular , Componentes Aéreos de las Plantas , Química , Resinas de Plantas , Química , EspectrofotometríaRESUMEN
In the present study, three compounds were isolated from Argyreia acuta, among them, compounds 1 and 2 were new and Compounds 1 and 3 were isomers. They were separated by several types of columns, such as normal phase, RP, size exclusion and preparative HPLC, and their structures were elucidated by several spectroscopic methods, such as 1D- and 2D-NMR and HR-TOF-MS.
Asunto(s)
Convolvulaceae , Química , Medicamentos Herbarios Chinos , Química , Glicósidos , Química , Isomerismo , Espectrometría de Masas , Estructura Molecular , Resonancia Magnética Nuclear Biomolecular , Componentes Aéreos de las Plantas , Química , Resinas de Plantas , Química , EspectrofotometríaRESUMEN
To study the constituents from the chloroform extract of the roots of Lasianthus acuminatissimus Merr., various chromatographic techniques were used to separate and purify the constituents. The structure was established on the basis of ID, 2D NMR and HRMS spectroscopic analysis. A new compound was isolated and identified, which was 3, 8-dihydroxy-1-methoxy-2-methoxymethyl-9,10-anthraquinone (I). Compound I is a new anthraquinone, namely lasianthurin.