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从四川何首乌(polygonumnultiflorumThunb)块根乙醇提取物的乙酸乙酯不溶部分分离得到五个单体,经理化常数测定,光谱(IR,UV,FAB-MS,1HNMR,13CNMR,1H-13CCOSY和NOE差谱)分析及衍生物制备,确定了两个化合物的结构为新化合物。化合物Ⅰ1,3-二羟基-6,7-二甲基酮-1-O-β-D-葡萄糖甙,命名为何首乌乙素,化合物Ⅱ为2,3,5,4′-四羟基-二苯乙烯-2,3-二-O-β-D葡萄糖甙,命名为何首乌丙素。其余三个结晶因量少有待进一步分离、鉴定。
Five monomers were isolated from the ethyl acetate insoluble fraction of ethanol extracts from the roots of polygonum nultiflorum Thunb in Sichuan, and the managerial constants were determined. Spectra (IR, UV, FAB-MS, 1H NMR, 13C NMR, 1H-13 CCOSY, and NOE differential spectra) were obtained. Analysis and derivative preparation confirmed the structure of the two compounds as new compounds. Compound I 1,3-dihydroxy-6,7-dimethyl ketone-1-O-β-D-glucopyranoside, the name of the first acetylcholine, Compound II is 2,3,5,4′-tetrahydroxy-bis Styrene-2,3-di-O-β-D glucoside, the name of the first sulfasalazine. The remaining three crystallization factors need to be further separated and identified.