野花椒中一个新的木脂素二聚体(3)
3Results and discussion
Compound 1a white powder, [α]21D-139.9(c 0.04, CHCl3). The molecular formula was determined to be C41H44O14 by HR-EI-MS(m/z 760.273 1 [M]+·). UV λmax(CHCl3)(log ε): 241(3.26), 279(2.93) nm; IR(KBr) νmax 3 425, 2 956, 2 922, 2 851, 1 658, 1 515, 1 464 ......
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Compound 1a white powder, [α]21D-139.9(c 0.04, CHCl3). The molecular formula was determined to be C41H44O14 by HR-EI-MS(m/z 760.273 1 [M]+·). UV λmax(CHCl3)(log ε): 241(3.26), 279(2.93) nm; IR(KBr) νmax 3 425, 2 956, 2 922, 2 851, 1 658, 1 515, 1 464 ......
您现在查看是摘要页,全文长 2700 字符。