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乌檀(Nauclea officinalis Pierre ex Pitard)为一抗菌消炎的中草药,我们从其茎中分离得到四个结晶化合物,经鉴定为乌檀碱(naucleidinal)、奎诺瓦酸(quinovaic acid)、β-谷甾醇(β-sitosterol)和生物碱 C_(20)H_(14)N_2O_2。抑菌试验表明两个生物碱均有抑菌作用。生物碱C_(20)H_(14)N_2O_2的结构有待进一步确定。
Nauclea officinalis Pierre ex Pitard is an antibacterial and anti-inflammation Chinese herbal medicine. We isolated four crystalline compounds from its stems, identified as naucleidinal, quinovaic acid, and beta-valley. Sterols (β-sitosterol) and alkaloids C_ (20) H_ (14) N_2O_2. Antibacterial tests showed that both alkaloids have antibacterial activity. The structure of alkaloid C_(20)H_(14)N_2O_2 needs to be further confirmed.