滨藜叶分药花化学成分研究(4)
化合物8白色无定型粉末。ESI-MSm/z689[M+Na]/1。/1H-NMR(CD3OD,400MHz)δ:5.37(1H,d,J=8.0Hz,H-1′),5.33(1H,brs,H-12),4.03(1H,d,J=11.2Hz,H-24a),3.39(1H,d,J=11.2Hz,H-24b),3.77(1H,m,H-2),3.27(1H,d,J=3.8Hz,H-19),3.05(1H,overlapped,H-18),3.05(1H,overlapped,H-3),1.29(3H,s,Me-27),1.23(3H,s,Me-23),0.98(3H,s,Me-25),0.95(3H,s,Me-30),0.94(3H,s,Me-29) ......
您现在查看是摘要页,全文长 3199 字符。