《Table 2 Antioxidant activity against XOD and DPPH of com-pounds 1–11》
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《Two symmetrical unsaturated acids isolated from Viscum album》
*Compounds 1–11 showed antioxidant activity against XOD and DPPH at12 mol·L–1
Compound 2 was isolated as a colorless amorphous solid,the HR-ESI-MS spectrum(m/z 279.1402[M–H]–),suggested the molecular formula C16H22O4.The 1H and 13C NMR spectrum(Table 1)of Compound 2 showed that its structure was similar to that of 1,except for the relative configuration of the vinyl group.In the 1H NMR spectrum of 2,two hydrogen groups of alkenes at 7.66(1H,d,15.6 Hz)and 7.69(1H,d,15.6 Hz)were shown,indicating the presence of trans alkene.Thus,the structure of compound 2 was determined to be(2E,6E)-dibutyl octa-2,6-dien-4-yne dioate(Fig.3).
图表编号 | XD0062383700 严禁用于非法目的 |
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绘制时间 | 2019.02.20 |
作者 | CAO Duo、WANG Li-Qing、HAN Xiao-Min、GUAN Hui-Rui、LEI Meng、WEI Ya-Hui、CHENG Liang、YANG Pei-Ming、SUN Zheng-Liang、GAO Wen、DAI Jia-Kun |
绘制单位 | College of Life Science, Northwest University、State Key Laboratory of New Drug and Pharmaceutical Process, Shanghai Institute of Pharmaceutical Industry, China State Institute of Pharmaceutical Industry、College of Life Science, Northwest University、Colleg |
更多格式 | 高清、无水印(增值服务) |
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