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Five sesquiterpenoids were isolated from a 50% acetone extract of Cornus officinalis leaves, a traditional non-medicinal part of Cornus officinalis, using modern column chromatographic techniques such as macroporous adsorbent resins colum, silica gel colum, chromatography gel colum and semi-preparative liquid chromatography techniques. Their structures were identified by modern wave spectroscopy techniques and electronic circular dichroism (ECD) and assigned as cornurtone A (1), cornucadinoside B (2), lacinilene C (3), 3, 12-dihydroxycadalene (4), cornucadinoside C (5). Compound 1 was new compound and compounds 2-5 were first isolated from leaves of Cornus officinalis. Compounds 2 and 3 had potential neuroprotective activities.
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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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