黄苞大戟化学成分研究(3)
化合物7 白色粉末; ESI-MS m/z 451 [M+Na]+; 1H-NMR(CDCl3,500 MHz)δ:6.50(1H,d,J=8.5 Hz,H-7),6.24(1H,d,J=8.5 Hz,H-6),5.22(1H,dd,J=8.3,15.3 Hz,H-23),5.14(1H,dd,J=8.3,15.3 Hz,H-22),3.97(1H,m,H-3),1.00(3H,s,H-19),0.99(3H,d,J=6.6 Hz,H-21),0.90(3H,d,J=6.8 Hz,H-28),0.88(3H,s,H-18),0.83(3H,d,J=7.0 Hz,H-26),0.81(3H,d,J=7.0 Hz,H-27); 13C-NMR(CDCl3,100 MHz)δ:30.1(C-1) ......
您现在查看是摘要页,全文长 3163 字符。