广西鸡屎藤的化学成分研究(2)
Fig.1 Structure,key HMBC and 1H-1H COSY correlations of compound 1化合物2 白色粉末(甲醇),TLC紫外灯(254 nm)下显紫色荧光,喷硫酸显色剂呈现紫黑色。ESI-MS m/z 469 [M+Na]+,915 [2M+Na]+,445[M-H]-;1H-NMR(CD3OD,600 MHz) δ :5.80(1H,d, J =0.9 Hz,H-1),7.39(1H,d, J =2.0 Hz,H-3),3.69(1H,ddd, J =11.4,6.9,1.8 Hz,H-5),5.56(1H,d, J =6.7 Hz,H-6),5.72(1H,s,H-7),2.97(1H,dd, J =8.6,8.6 Hz,H-9),4.99(1H ......
您现在查看是摘要页,全文长 3313 字符。