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  • Title: [Triterpenoids and steroids of root of Rubus biflorus].
    Author: Kang SH, Shi YQ, Yang CX.
    Journal: Zhong Yao Cai; 2008 Nov; 31(11):1669-71. PubMed ID: 19260277.
    Abstract:
    OBJECTIVE: To investigate the chemical constituents of root of Rubus biflorus. METHODS: Isolation and purification were carried out by silica gel column chromatography and recrystallization and so on. Structural determination of the pure compounds was based on physico-chemical properties and various spectral data analysis (1H-NMR, 13C-NMR, IR, EI-MS). RESULTS: Five compounds were isolated and identified as follows: lupeol acetate (I), corosolic acid (II), oleanic acid (III), 2alpha-hydroxyoleanolic acid (IV), sitosterol (V). CONCLUSION: All these compounds are isolated from this plant for the first time.
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