满山白化学成分研究(2)
化合物2 无色胶状物,ESI-MS m/z 383 [M+Na]+,743 [2M+Na]+; 1H-NMR(CD3OD,300 MHz)δ: 6.96(1H,s,H-2),6.84(1H,d,J=8.1 Hz,H-6),6.77(1H,d,J=8.1 Hz,H-5),6.73(2H,s,H-4′,6′),5.48(1H,d,J=6.0 Hz,H-7),3.84(3H,s,3′-OCH3),3.81(3H,s,3-OCH3),3.80(1H,overlapped,H-9b),3.70(1H,overlapped,H-9a),3.57(2H,m,H-9′) ......
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