[关键词]
[摘要]
目的 研究荔枝Litchi chinensis核的化学成分。方法 利用各种色谱技术进行分离,运用现代光谱技术鉴定化合物结构。结果 从荔枝核50%乙醇提取物中分离得到15个化合物,分别鉴定为5-反式香豆酰奎宁酸(1)、3-O-反式香豆酰奎宁酸(2)、根皮苷(3)、柚皮苷(4)、芦丁(5)、柚皮素-7-O-芸香糖苷(6)、山柰酚3-O-(6-O-啡酰基)-β-D-葡萄糖基-(1→2)-α-L-鼠李糖-7-O-α-L-鼠李糖苷(7)、原花青素A2(8)、对羟基苯甲酸(9)、原儿茶醛(10)、对羟基苯甲醛(11)、原儿茶酸(12)、顺式对羟基肉桂酸(13)、反式对羟基桂皮酸(14)、falandin B(15)。结论 化合物1、2、7、13~15为首次从该属植物中分离得到,也是首次从该植物中分离得到。
[Key word]
[Abstract]
Objective To study the chemical constituents from Litchi Semen. Methods Different column chromatographic techniques were used to separate and purify the chemical constituents and their structures were elucidated by spectral analysis. Results A total of 15 compounds were isolated and identified as 5-p-trans-coumaroylquinic acid (1), 3-O-trans- coumaroylquinic acid (2), phlorizin (3), naringin (4), rutin (5), naringenin-7-O-rutinoside (6), kaempferol 3-O-(6-O-caffeoyl)-β-D- glucopyranosyl-(1→2)-α-L-rhamnopyranosyl-7-O-α-L-rhamnopyranoside (7), proanthocyanidin A-2 (8), p-hydroxybenzoic acid (9), protocatechuic aldehyde (10), p-hydroxybenzaldehyde (11), protocatechuic acid (12), Z-p-hydroxy-cinnamic acid (13), E-p-hydroxy-cinnamic acid (14), and 3,6-dihydroxy-5,11-epoxy-7Z-megastigmaen-9-one (15). Conclusion Compounds 1, 2, 7, 13-15 are isolated from the genus Litchi for the first time, and they are also isolated from this plant for the first time.
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[基金项目]
2017年广西创新驱动发展专项资金项目(桂科AA17202035);江西省中药学一流学科专项科研基金项目(JXSYLXK-ZHYAO 052)