苦参中非生物碱类成分研究(2)
3 结构鉴定化合物1 白色粉末; ESI-MS m/z 409 [M+Na]+,207 [M-glc]+,431 [M+HCOO]-;1H-NMR(CD3OD,600 MHz) δ : 2.55(1H,d,J=16.7 Hz,H-2α),2.05(1H,d,J=16.7 Hz,H-2β),5.76(1H,s,H-4),5.94(1H,d,J=15.5 Hz,H-7),5.65(1H,dd,J=6.4,15.5 Hz,H-8),4.43(1H,dq,J=6.4,6.4 Hz,H-9),1.19(3H,d,J=6.4 Hz,H-10),0.93(3H,s,H-11),0.92(3H,s,H-12),1.82(3H,s,H-13),4.09(1H,d,J=7.8 Hz,H-1′),2.94(2H,m,H-2′,5′),3.03(2H,m,H-3′ ......
您现在查看是摘要页,全文长 3573 字符。