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目的研究榆树(Ulmus pumila L.)根皮中的化学成分。方法采用反复硅胶柱色谱法,凝胶柱色谱法,半制备HPLC等进行分离纯化;通过理化常数测定和光谱分析鉴定其化学结构。结果从榆树根皮正丁醇提取物中分离得到了6个化合物,即lyoniside(1)、(+)-lyoniresinol 3α-O-α-L-rh-amnopyranoside(2)、正丁基-O-β-D-吡喃果糖苷(n-butyl-O-β-D-fructopyranoside,3)、正丁基-O-α-D-呋喃果糖苷(n-butyl-O-α-D-fructofuranoside,4)、正丁基-O-β-D-呋喃果糖苷(n-butyl-O-β-D-fructo-furanoside,5)、胡萝卜苷(daucosterol,6)。结论化合物2-5为属内首次分离得到,化合物1为种内首次分离得到。
Objective To study the chemical constituents in the root bark of Ulmus pumila L. Methods The compounds were separated and purified by repeated silica gel column chromatography, gel column chromatography and semi-preparative HPLC. Their chemical structures were identified by physico-chemical constants and spectral analysis. Results Six compounds were isolated from the extracts of root bark of Ulmus pumila, namely lyoniside (1), (+) - lyoniresinol 3α-O-α-L- rh-amnopyranoside O-β-D-fructopyranoside (3), n-butyl-O-α-D-fructofuranoside 4), n-butyl-O-β-D-fructo-furanoside (5) and daucosterol (6) Conclusion Compound 2-5 was isolated from the genus for the first time, and compound 1 was isolated for the first time in the species.