[关键词]
[摘要]
目的 研究青龙衣(核桃楸Juglans mandshurica未成熟果实的外果皮)的化学成分。方法 采用反复硅胶柱色谱、Sephadex LH-20柱色谱和ODS柱色谱法等进行分离纯化,并运用NMR波谱技术鉴定化合物的结构。结果 从青龙衣95%乙醇提取物中分离得到14个化合物,分别鉴定为芹菜素(1)、苜蓿素(2)、异泽兰黄素(3)、3,7,8,3'-四羟基-4'-甲氧基黄酮(4)、3,5-二羟基-7-甲氧基-3',4'-亚甲二氧基黄酮(5)、花旗松素(6)、槲皮素-3-O-(6″-没食子酰基)-β-D-半乳糖苷(7)、槲皮素-3-O-(4″-O-乙酰基)-α-L-鼠李糖苷(8)、黄杞苷(9)、异黄杞苷(10)、山柰酚-3-O-β-D-吡喃葡萄糖苷(11)、槲皮素-3-O-β-D-葡萄糖醛酸苷(12)、槲皮素-3-O-β-D-吡喃葡萄糖苷(13)、杨梅素-3-O-β-D-葡萄糖醛酸苷(14)。结论 化合物1~10、12、14为首次从青龙衣中分离得到。
[Key word]
[Abstract]
Objective To study the chemical constituents from the green walnut husks of Juglans mandshurica. Methods The chemical constituents from the green walnut husks of J. mandshurica were isolated and purified by repeated silica gel, Sephadex LH-20 column chromatography and ODS column chromatography, and their structures were identified by NMR spectral analysis. Results A total of 14 compounds were isolated from the green walnut husks of J. mandshurica, and identified as apigenin (1), tricin (2), eupatilin (3), 3,7,8,3'-tetrahydroxy-4'-methoxyflavone (4), 3,5-dihydroxy-7-methoxy-3',4-methylenedioxyflavone (5), taxifolin (6), quercetin-3-O-(6″-galloyl)-β-D-galactopyranoside (7), quercetin-3-O-(4″-O-acetyl)-α-L-rhamnopyranoside (8), engeletin (9), isoengeletin (10), kaempferol-3-O-β-D-glucopyranoside (11), quercetin-3-O-β-D-glucuronide (12), quercetin-3-O-β-D- glucopyranoside (13), and myricetin-3-O-β-D-glucuronide (14). Conclusion Compounds 1-10, 12, and 14 are isolated from the green walnut husks of J. mandshurica for the first time.
[中图分类号]
[基金项目]
国家自然科学基金资助项目(81202890);黑龙江省科学基金资助项目(LH2019H048);中国博士后特别资助项目(2014T70374);中国博士后面上资助项目(一等)(2013M530164);黑龙江省博士后科研启动金资助项目(LBH-Q16207);哈尔滨市青年科技创新人才项目(2013RFQXJ052);黑龙江中医药大学博士创新基金项目(B201103);黑龙江中医药大学优秀创新人才支持项目(051248)