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Seventeen phenolic compounds were isolated from the aqueous extract of the stems of Ephedra sinica using various column chromatographic techniques, including silica gel and Sephadex LH-20, combined with semi-preparative HPLC. Their structures were elucidated by modern spectroscopic methods such as NMR, UV, IR, and MS. Compounds 1 and 2 were identified as new phenols, and compounds 3-17 were isolated from this plant for the first time. The proliferation inhibitory activities of all the compounds on human non-small cell lung cancer cells (A549) was screened. The results showed that compounds 1-17 exhibited no proliferation inhibitory activity on A549 cells at a concentration of 10 μmol·L-1.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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