毛重楼的化学成分研究(3)
化合物7 白色针晶(甲醇);mp 213~215 ℃;ESI-MS m/z 1 013.1[M-H]-,867.7 [M-H-146]-,721.4 [M-H-146-146]-,575.3 [M-H-146-146-146]-;/1H-NMR(Pyr-d5,500 MHz)δ:0.69(3H,d,J=5.7 Hz,27-CH3),1.13(3H,d,J=6.9 Hz,21-CH3),0.82(3H,s,18-CH3),1.04(3H,s,19-CH3),3.86(1H,m,H-3),5.31(1H,d,J=5.2 Hz,H-6),3.57(2H,m,H-26),5.81(1H,s,4′-O-Rha-H-1),6.25(1H ......
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