| Citation: | LIN Feng-Xia, YANG Yu, ZHANG Ai-Jun, ZHANG Yang, DIAO Yi-Min. A new naphthaquinone derivative from Pyrola calliantha H. AndresJ. 药学学报, 2010,45(8): 1025-1027. |
To investigate the chemical constituents of hemostatic extract of Pyrola calliantha H. Andres, the extract was subjected to chromatographic separation and purification. Along with some known compounds, a new naphthaquinone derivative was isolated and identified as 2-(1, 4-dihydro-2, 6-dimethyl-1, 4-dioxo-3- naphthalenyl)-3, 4, 5-trihydroxylbenzoic acid by physicochemical and spectroscopic analysis.