Tetrahydroswertianolin (1), a new tetrahydroxanthone glycoside, was isolated from the whole plant of Swertia japonica Makino (Gentianaceae). Its structure was determined by chemical and spectroscopic methods including 2D-NMR. This compound was found to be very effective in immunologically induced liver injury in mice.
Gentianaceae, Swertia japonica, tetrahydroswertianolin, tetrahydroxanthone, D-galactosamine/lipopolysaccharide-induced liver injury
Publication DOI: 10.1248/cpb.45.567Journal NLM ID: 0377775Publisher: Pharmaceutical Society Of Japan
Institutions: Research Institute for Wakan-Yaku (Traditional Sino-Japanese Medicines), Toyama Medical and Pharmaceutical University, 2630-Sugitani, Toyama 930-01, Japan
Methods: 13C NMR, 1H NMR, NMR-2D, IR, FAB-MS, chemical methods, biological assays, extraction