刺萼龙葵化学成分研究(2)
3 结构鉴定化合物1 白色针晶(甲醇); HR-ESI-MS m/z 891.479 4[M+Na]+, 867.473 6[M-H]-; 1H-NMR(CD3OD,600 MHz)δ: 5.41(1H,br s,H-6),0.83(3H,s,18-Me),1.07(3H,s,19-Me),0.98(3H,d,J=7.02 Hz,21-Me),0.81(3H,d,J=6.42 Hz,27-Me),4.52(1H,d,J=7.8 Hz,Glu-H-1′),5.22(1H,br s,Rha-H-1″),1.26(3H,d,J=6.24 Hz,Rha-H-6″) ......
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