雪上一支蒿的化学成分研究(4)
化合物7:白色块状结晶, 分子式为:C22H33O3N;H-NMR (500 MHz, C5D5N) δ:5.24(1H, br.s, αH-17), 4.92(1H, br.s, βH-17), 4.08(1H, br.s, H-15), 4.14(1H, dd, J= 5.2, 2.6 Hz, H-12), 3.30(3H, s, H-20), 2.98(1H, dd, J= 9.2, 5.3 Hz, H-13), 2.43(1H, d, J= 8.7 Hz, H-7), 1.69(1H, d, J= 15.2 Hz, H-5), 1.28(3H, d, J= 5.4 Hz, NCH2CH3), 0.75 (3H, s, H-18);13C-NMR (125 MHz, C5D5N) δ:67.3(C-1), 26.7(C-2), 31.2(C-3), 35.2(C-4), 51.3(C-5), 24.2(C-6) ......
您现在查看是摘要页,全文长 3682 字符。