目的 研究莲Nelumbo nucifera的成熟种子中间绿色胚根(莲心)的化学成分。方法 利用反相硅胶柱色谱法、Sephadex LH-20凝胶柱色谱法、中压柱色谱及半制备高效液相色谱等方法分离纯化;通过NMR、MS等鉴定化合物结构。结果 从莲子心的乙醇提取物中分离得到13个化合物,分别鉴定为对甲氧基苯乙酸(1)、槲皮素-3-O-α-L-阿拉伯糖苷(2)、芹菜素-6-C-阿拉伯糖-8-C-葡萄糖苷(3)、柚皮素(4)、豆甾-4-烯-3-酮(5)、槲皮素-3-甲醚(6)、牡荆素(7)、大波斯菊苷(8)、槲皮素(9)、芹菜素(10)、木犀草素(11)、山柰酚(12)和黄芪苷(13)。结论 化合物1~3、5和6为首次从莲属植物中分离得到,化合物8为首次从莲子心中分离得到。

Objective To investigate the chemical constituents from the Seeds of Nelumbo nucifera. Methods The chemical constituents were isolated by repeated silica gel chromatography, Sephadex LH-20 gel columns chromatography, medium pressure column chromatography, and semi-preparative liquid chromatography, and their structures were elucidated by chemical properties and spectroscopic analyses. Results Thirteen compounds were identified to be p-methoxyphenylacetic acid (1), quercetin-3-O-α-L-arabinoside (2), apigenin-6-C-arabinoside-8-C-glucoside (3), naringenin (4), stigmast-4-en-3-one (5), quercetin-3-methyl ether (6), vitexin (7), cosmoslin (8), quercetin (9), apigennin (10), luteolin (11), kaempferol (12), and astragalin (13). Conclusion Compounds 1-3, 5 and 6 are obtained from the plants of Nelumbo Adans for the first time, and compound 8 is obtained from Nelumbo plumula for the first time.