[关键词]
[摘要]
目的 对野茉莉Styrax japonicus的叶进行化学成分研究。方法 通过硅胶、Sephadex LH-20凝胶柱色谱及重结晶等方法进行分离和纯化,根据理化性质、波谱数据进行结构鉴定。结果 从野茉莉叶70%乙醇提取物三氯甲烷萃取部位分离得到16个化合物,包括9个苯丙素和7个其他类化合物,分别鉴定为nectandrin B(1)、豆甾醇(2)、荚果蕨素(3)、eupomatenoid-7(4)、β-谷甾醇(5)、去氢二异丁香酚(6)、4-oxo-4[(3β,22E)-stigmasta-5,22-dien-3-yloxy]butanoic acid(7)、4-(3-methory-4-hydroxy) pheny-3-methyl-3-buten-2-one(8)、熊果酸(9)、香草酸(10)、(+)-(7S,8R,8'R)-4,8'-dihydroxy-3-methoxy-1',2',3',4',5',6'-hexanorligna-7,7'-lactone(11)、(+)-(7S,8R)-4-hydroxy-3-methoxy-1',2',3',4',5',6',7'-heptanorlign-8'-one(12)、(2S,3R')-2,3-dihydro-2-(4-hydroxy-3-methoxyphenyl)-7-methoxy-5-(2-propen-1-yl)-3-benzofuranmethanol(13)、香草醛(14)、对香豆酸(15)和二氢山柰酚(16)。结论 化合物1、3~16均为首次从该植物中分离得到。
[Key word]
[Abstract]
Objective To study the chemical constituents from the leaves of Styrax japonicus.Methods Seventeen compounds including nine phenylpropanoids and seven other constituents were isolated from the chloroform fraction of the 70% ethanol extract of leaves of S. japonicus, using column chromatography over silica gel and Sephadex LH-20 as well as the method of recrystallization.Results On the basis of physical and chemical properties combined with spectral data analysis, their structures were elucidated as nectandrin B (1), stigmasterol (2), matteucinol (3), eupomatenoid-7 (4), β-stigmasterol (5), dehydrodiisoeugenol (6), 4-oxo-4[(3β,22E)-stigmasta-5,22-dien-3-yloxy] butanoic acid (7), 4-(3-methory-4-hydroxy) pheny-3-methyl-3-buten-2-one (8), ursolic acid (9), vanillic acid (10), (+)-(7S,8R,8'R)-4,8'-dihydroxy-3-methoxy-1',2',3',4',5',6'-hexanorligna-7,7'-lactone (11), (+)-(7S,8R)-4-hydroxy-3-methoxy-1',2',3',4',5',6',7'-heptanorlign 8'-one (12), (2S,3R')-2,3-dihydro-2-(4-hydroxy-3-methoxyphenyl)-7-methoxy-5-(2-propen-1-yl)-3-benzofuranmethanol (13), vanillin (14), (E)-p-coumaric acid (15), and dihydrokaempferol (16).Conclusion Compounds 1, 3-16 are isolated from this plant for the first time.
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[基金项目]
国家中医药管理局“药用植物学”重点学科(国中医药发[2009]30号);湖南省大学生研究性学习和创新性实验计划项目(湘教通[2018]255号);郴州五盖山天时生态农业科技开发有限公司委托课题(50010103);湖南省高校科技创新团队资助项目(湘教通[2010]212号);湖南中医药大学中药学一流学科资助项目(校行科字[2018]3号)