羽叶丁香茎皮中1个新木脂素成分(4)
化合物8 白色膠状物;ESIMS m/z 183[M-H]-;1HNMR (CD3OD,500 MHz) δ:6.72 (2H,overlapped,H2,6),6.61 (1H,dd,J=2.0,8.0 Hz,H5),3.58 (1H,dd,J=3.5,13.5 Hz,Hαa),3.48 (1H,dd,J=3.5,13.5 Hz,Hαb),4.08 (1H,dd,J=4.0,8.5 Hz,Hβ),3.22 (3H,s,αOMe)。13CNMR (CD3OD,125 MHz) δ:131.6 (C1),114.9 (C2),146.5 (C3),146.2 (C4),116.2 (C5),119.8 (C6),67.9 (Cα),86.1 (Cβ),56.8 (αOMe)。以上数据与文献[14]对照,鉴定为3,4dihydroxyβmethoxyphenethyl alcohol ......
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