长尾粗叶木根的化学成分研究(Ⅱ)

目的研究长尾粗叶木Lasianthus acuminatissimus根的化学成分。方法利用正相硅胶柱色谱、凝胶柱色谱、反相柱色谱和制备液相色谱等方法进行分离纯化,通过波谱数据并结合文献报道数据鉴定结构。结果从长尾粗叶木根中分离得到16个化合物,分别鉴定为对甲氧基苯酚(1)、3-乙酰基白桦酸(2)、十六烷酸(3)、3,8-二羟基-2-乙氧基甲基-1-甲氧基-9,10-蒽醌(4)、1,3-二羟基-2-乙氧甲基-9,10-蒽醌(5)、1,3-二羟基-3-甲基-9,10-蒽醌(6)、3,8-二羟基-1-甲氧基-9,10-蒽醌(7)、3-羟基-1-甲氧甲基-9,10-蒽醌(8)、1,3-二羟基-2-甲氧甲基-9,10-蒽醌(9)、4-羟甲基-2-糠醛(10)、邻苯二甲酸二丁酯(11)、长尾粗叶木素A(12)、异东莨菪素(13)、虎刺醇(14)、钩藤苷元A(15)、长尾粗叶木苷A(16)。结论化合物1~11为首次从粗叶木属植物中分离得到。

Chemical constituents from root of Lasianthus acuminatissimus (II)

Objective To study the chemical constituents from the root of Lasianthus acuminatissimus. Methods The compounds were isolated and purified by silica gel column chromatography, Sephadex LH-20, ODS column chromatography, preparative HPLC and so on. Their structures were determined on the basis of physicochemical properties and their spectroscopic data, as well as literature. Results A total of 16 compounds were separated and identified as 4-methoxyphenol (1), 3-acetylbetulinic acid (2), palmitic acid (3), 3,8-dihydroxy-2-ethoxymethyl-1-methoxy-9,10-anthraquinone (4), 1,3-dihydroxy-2-ethoxymethyl-9,10-anthraquinone (5), 1,3-dihydroxy-2-methyl-9,10-anthraquinone (6), 3,8-dihydroxy-1-methoxy-9,10-anthraquinone (7), 3-hydroxy-1-methoxy-9,10-anthraquinone (8), 1,3-dihydroxy-2-methoxymethyl-9,10-anthraquinone (9), 4-hydroxymethyl-2-furaldehyde (10), butyl benzyl phthalate (11), lasianthurin A (12), isoscopletin (13), damnacanthol (14), uncargenin A (15), and lasianthuoside A (16). Conclusion Compounds 1—11 are isolated from the genus of Lasianthus for the first time.