从美商陆(Phytolaccaamericana)种子甲醇提取物中分离得到3个新的1,4-苯并二噁烷化合物(1～3),检测了其对原代培养大鼠皮层神经元的轴突发生活性。干燥的美商陆种子(2.6kg)用甲醇室温提取3次,历时1个月。合并甲醇提取物,真空干燥得到粗提取物。取部分粗提物(57.3g)与硅藻土混合 Three new 1,4-benzodioxane compounds (1 to 3) were isolated from the methanol extract of Phytolacca americana seeds, and their axis bursts in primary cultured rat cortical neurons were examined. Life style. Dried Pampanga seeds (2.6 kg) were extracted 3 times with methanol at room temperature for 1 month. The methanol extracts were combined and dried in vacuo to give a crude extract. Take some crude extract (57.3g) mixed with diatomaceous earth