[关键词]
[摘要]
目的 对人参Panax ginseng果梗的化学成分进行研究。方法 采用硅胶柱色谱和反相硅胶制备液相方法进行分离纯化,通过1H-NMR和13C-NMR波谱方法分析鉴定化合物结构。结果 从人参果梗的乙醇提取物中分离纯化得到28个化合物,分别鉴定为20(S)-原人参三醇(1)、20(S)-原人参二醇(2)、20(S)-达玛-24-烯-3-酮-6α,12β,20-三醇(3)、(20S,23E)-达玛-23-烯-3β,6α,12β,20,25-五醇(4)、(20S,24R)-达玛-26-烯-3β,6α,12β,20,24-五醇(5)、20(R)-达玛烷-3-酮-6α,12β,20,25-四醇(6)、人参皂苷Rk2(7)、20(R)-达玛烷-24(25)-环氧-3β,6α,12β,20-四醇(8)、人参皂苷CK(9)、20(S)-达玛烷-3β,6α,12β,20,25-五醇(10)、人参皂苷Rh4(11)、20(S)-达玛烷-3β,12β,20,25-四醇(12)、20(S)-达玛烷-3β,6α,12β,20,24-五醇(13)、20(R)-达玛烷-3β,6α,12β,20,25-五醇(14)、拟人参皂苷RT5(15)、人参皂苷Rh1(16)、人参皂苷Rh3(17)、20(S)-达玛烷-3β,12β,20,25-四醇-3-O-β-D-吡喃葡萄糖苷(18)、20(S)-异人参皂苷Rh3(19)、人参皂苷Rg1(20)、人参皂苷Y(21)、人参皂苷Rd(22)、人参皂苷la(23)、20(S)-达玛烷-3β,12β,20,25-四醇-3-O-β-D-吡喃葡萄糖基-(1→2)-O-β-D-吡喃葡萄糖苷(24)、人参皂苷Rg2(25)、三七皂苷Fe(26)、人参皂苷Re(27)和人参皂苷Rb1(28)。结论 化合物4~6、8、10、12、13和21是首次从人参中分离得到。
[Key word]
[Abstract]
Objective To investigate the chemical constituents of the fruit pedicels of Panax ginseng. Methods The compounds were purified by silica gel column chromatography and preparative reverse-phase high performance liquid chromatography. Their structures were elucidated on the basis of spectroscopic analyses. Results Twenty-eight compounds were isolated from the total extract of the fruit pedicels of P. ginseng. They were identified as 20(S)-protopanaxatriol (1), 20(S)-protopanaxadiol (2), 20(S)-dammar-24-ene-3-one-6α,12β,20-triol (3), (20S,23E)-dammar-23-ene-3β,6α,12β,20,25-pentol (4), (20S,24R)-dammar-26-ene-3β,6α,12β,20,24-tetrol (5), 20(R)-dammar-3-one-6α,12β,20,25-tetrol (6), ginsenoside Rk2 (7), 20(R)-dammar-24(25)-epoxy-3β,6α,12β,20-tetrol (8), ginsenoside CK (9), 20(S)-dammar-3β,6α,12β,20,25-pentol (10), ginsenoside Rh4 (11), 20(S)-dammar-3β,12β,20,25-tetrol (12), 20(S)-dammar-3β,6α,12β,20,24-pentol (13), 20(R)-dammar-3β,6α,12β,20,25-pentol (14), pseudoginsenoside RT5 (15), ginsenoside Rh1 (16), ginsenoside Rh3 (17), 20(S)-dammar-3β,12β,20,25-tetrol-3-O-β-D-glucopyranoside (18), 20(S)-isoginsenoside Rh3 (19), ginsenoside Rg1 (20), ginsenoside Y (21), ginsenoside Rd (22), ginsenoside la (23), 20(S)-dammar-3β,12β,20,25-tetrol-3-O-β-D-glucopyranosyl-(1→2)-O-β-D-glucopyranoside (24), ginsenoside Rg2 (25), notoginsenoside Fe (26), ginsenoside Re (27), and ginsenoside Rb1 (28), respectively. Conclusion Among them, compounds 4-6, 8, 10, 12, 13, and 21 are isolated from P. ginseng for the first time.
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[基金项目]
国家自然科学基金资助项目(31160017);北京市自然科学基金资助项目(2142012);大学生科研与创业行动计划(201710011115)