Study on Chemical Constituents in Rubus Pinfaensis / 中国药师

ABSTRACT

Objective:To study the chemical constituents in the dry roots of Rubus pinfaensis. Methods:The compounds were sep-arated from the alcohol extract of the roots of Rubus pinfaensis by silica gel column chromatography, and identified by IR, 1 H-NMR and EI-MS methods. Results:Five compounds were isolated and identified as oleanolic acid (Ⅰ) , 3-keto, 16α-hydroxy, 24-noroleanolic acid (Ⅱ) , 3′-methoxy myricetin (Ⅲ) , 2′-deoxyuridine (Ⅳ) and p-hydroxy phenylacetic acid (Ⅴ) . Conclusion: Compound Ⅰ,Ⅱ,Ⅲ,Ⅳ and Ⅴ are isolated from Rubus pinfaensis for the first time.