ganp_a_1553164_sm4909.docx (567.08 kB)
Steroids from the seeds of Datura metel
journal contribution
posted on 2019-01-21, 15:20 authored by Bing-You Yang, Hai-Bing Jiang, Yan Liu, Jing Chen, Hai-Xue KuangTwo new steroids meteloside F (1) and meteloside G (2), together with six known ones (3–8), were isolated and identified from the seeds of Datura metel L. The chemical constituents were isolated by silica gel, ODS chromatogram columns. and preparative HPLC. The structures of these compounds were established by one- and two-dimensional NMR spectra and HR-ESI-MS. The compounds exhibited inhibition on the nitric oxide release of lipopolysaccharide-induced RAW 264.7 cells with IC50 values from 30.2 to 44.8 μM.