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Outline
Six new compounds including two diarylheptanoids (1, 2), one norlignan (3), and three gingerenols (4-6) were isolated from the rhizoma of Zingiber officinale by column chromatography of Diaion HP-20, MCI Gel CHP-20, Sephadex LH-20, ODS-A gel and semi-preparative HPLC. Structural identification of the isolated compounds was performed via modern spectroscopic methods (1D and 2D NMR, UV, IR, and MS), and they were characterized as 3-keto-5(R)-(6-amino-9H-purin-9-yl)-1, 7-(4-hydroxy-3-methoxyphenyl)-heptane (1), (5α, 6α)1, 5-epoxy-3-one-6-hydroxy-1, 7-(4-dihydroxy-3-methoxyphenyl)-heptane (2), (2S)1-(bis(4-hydroxy-3-methoxyphenyl)methyl)-dihydrofuran-5-(2H)one (3), 1-(4-hydroxy-3-methoxyphenyl)-decane-3, 5, 6-triol (4), 1-(4-hydroxy-3-methoxyphenyl)-decane-3, 8-diol (5) and 1-(4-hydroxy-3-methoxyphenyl)-decane-3, 5, 10-triol (6), by using modern spectroscopic methods (1D and 2D NMR, UV, IR, and MS). The absolute configurations of compounds 1 and 3 were determined through the comparisons of optical rotations in references. However, the ECD data of compound 3 were failed to obtain, and only the relative configuration was determined through the NMR calculations. Due to insufficient sample amounts, the absolute configurations of compounds 3-6 were not further determined.
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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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