甘青大戟中的甾体类和芳香族化学成分(3)
化合物5 白色无定型固体; ESIMS m/z 411 [M+H]+,449 [M+K]+;1HNMR(acetoned6,500 MHz) δ:7.14(1H,d,J=10.0 Hz,H1),6.08(1H,dd,J=10.0,1.5 Hz,H2),5.95(1H,s,H4),0.78(3H,s,H318),1.23(3H,s,H319),0.94(3H,d,J=6.5 Hz,H321),0.83(3H,d,J=6.5 Hz,H326),0.82(3H,d,J=6.5 Hz,H327),0.84(3H,t,J=6.5 Hz,H329);13CNMR(acetoned6,125 MHz) δ:156.4(C1),127.9(C2),186.0(C3),124.2(C4),169.6(C5),33.3(C6),34.5(C7),36.2(C8),53.5(C9) ......
您现在查看是摘要页,全文长 3445 字符。