Hosoya Takahiro, Yun Young Sook, Kunugi Akira
Graduate School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan.
Phytochemistry. 2008 Feb;69(3):827-32. doi: 10.1016/j.phytochem.2007.08.021. Epub 2007 Oct 24.
From the MeOH extract of the leaves of W. japonica, seven phenylpropanoid gentiobiosides (1-7) were isolated along with eight known phenylpropanoids (8-15). Structures of 1-7 were determined based on spectroscopic data and chemical evidence. The activity of compounds 1-15 to scavenge superoxide anion radicals was investigated using an electron spin resonance (ESR) method.
从日本常山叶片的甲醇提取物中,分离得到了7种苯丙素龙胆二糖苷(1 - 7)以及8种已知的苯丙素类化合物(8 - 15)。根据光谱数据和化学证据确定了1 - 7的结构。采用电子自旋共振(ESR)方法研究了化合物1 - 15清除超氧阴离子自由基的活性。