Usnic acid, a lichen antibiotic, showed low-level activity in the Lewis lung carcinoma test system. In an effort to produce new agents of potential use in the treatment of lung cancer, derivatives of the natural product were synthesized and evaluated with a cytotoxicity assay. Structure--activity analysis of the cytotoxicity data indicated the importance of the lipophilicity and the beta-triketone
地衣抗生素
松萝酸在路易斯肺癌测试系统中显示出低
水平的活性。为了产生可能用于治疗肺癌的新药物,合成了
天然产物的衍
生物,并用细胞毒性测定法进行了评估。细胞毒性数据的结构活性分析表明,
松香酸的亲脂性和β-三酮部分对细胞毒性具有重要意义。在P388白血病或Lewis肺癌试验系统中,任何合成化合物均未显示试验动物的存活率明显高于对照。