We synthesized ten enamine naphthoquinones with yields ranging from 43 to 76%. These compounds were screened for their in vitro antiproliferative activities by MTT assay against four types of human cancer cell lines: HCT116, PC3, HL60 and SNB19. The naphthoquinones bearing the picolylamine (7) and quinoline (12) moieties were the most actives (IC₅₀ < 24 μM for all the cell lines), which were comparable or better to the values obtained for the control drugs. In silico evaluations allowed us to develop a qualitative Structure-Activity Relationship which suggest that electrostatic features, particularly the C₂–C₃ internuclear repulsion and the molecular dipole moment, relate to the biological response. Furthermore, Molecular Docking simulations indicate that the synthetic compounds have the potential to act as anticancer molecules by inhibiting topoisomerase-II and thymidylate synthase.

我们合成了十种烯胺萘醌，产率在 43% 到 76% 之间。通过 MTT 测定法筛选这些化合物对四种类型的人类癌细胞系 HCT116、PC3、HL60 和 SNB19 的体外抗增殖活性。带有甲基吡啶 ( 7 ) 和喹啉 ( 12 ) 部分的萘醌是最活跃的（所有细胞系的 IC ₅₀  < 24 μM），与对照药物获得的值相当或更好。计算机评估使我们能够建立定性的结构-活性关系，这表明静电特征，特别是C ₂ -C ₃核间斥力和分子偶极矩，与生物反应有关。此外，分子对接模拟表明，合成化合物具有通过抑制拓扑异构酶-II 和胸苷酸合酶作为抗癌分子的潜力。