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Outline
Three new eudesmane sesquiterpenoids (oxyphylleudnes K-M) were separated and purified from the ethyl acetate fraction of Alpinia oxyphylla Fructus, by using various column chromatography methods such as MCI Gel CHP-20, YMC GEL ODS-A, and silica gel columns, combined with preparative thin-layer and semi-preparative liquid chromatography methods. Their structures were identified by modern spectroscopic techniques (1D and 2D NMR, UV, IR and MS) and with computational NMR and ECD methods. Among them, there are two nor-eudesmane sesquiterpenes (1, 2) and one seco-eudesmane sesquiterpene (3).
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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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