Abstract:
Six compounds were isolated from the ethyl acetate fraction of
Citri Sarcodactylis Fructus by using various column chromatographic methods, such as MCI Gel CHP-20, ODS, Sephadex LH-20, silica gel and semipreparative HPLC. Their structures were identified to be citrusin G (
1), citrusin H (
2), citrusin E (
3), syringin (
4), coniferin (
5), methylconiferin (
6) by NMR, HR-ESI-MS, UV, IR spectra. Compounds
1 and
2 were new secondary metabolism products and
3-
6 were obtained from the titled material for the first time. Compound
1 showed anti-renal fibrosis activity in TGF-
β1-induced kidney proximal tubular cells.