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[Chemical composition of fructus Liquidambaris--lulutong]
Chun Li1, Yu-ru Sun, You-fu Sun
1Institute of Chinese Materia Medica, China Academy of Traditional Chinese Medicine, Beijing 100700, China.
Aim:
To study the chemical composition in the fruits of Liquidambar formana Hance.
Methods:
Various column chromatographic techniques were used to separate and purify the constituents. Their physical and chemical properties and spectral data were measured for structural elucidation.
Results:
Eleven compounds were isolated and identified as beta-sitosterol (1), 3-oxo-11 alpha, 12 alpha-epoxyleanan-28, 13 beta-olide (2), 3-oxo-12 alpha-hydroxy-oleanan-28, 13 beta-olide (3), 3 alpha-acetyloxy-25-hydroxyolean-12-en-28-oic acid (4), oleanolic acid (5), ursolic acid (6), daucosterol (7), betulonic acid (8), gallic acid (9), nonacosane (10) and n-triacontanoic acid (11).
Conclusion:
Among the isolated constituents, compound 4 is new compound, compound 3 is firstly isolated from the natural product and compound 5, 6, 7, 9, 10 and 11 are isolated from LuLuTong for the first time.