A novel series of hybrids of indolin-2-one and quinazolin-4(3H)-one linked via an imine bond were synthesized and tested for their inhibitory activity against the proliferation of a panel of five human cancer cell lines. We found that compound 5c bearing 5-bromo substituent at the indolin-2-one ring exhibited weak cytotoxic activity with percentages of inhibition ranging from 27% to 49% at 20 μM, while its counterpart 7c having 4-methoxybenzyl group at the N1-position of indolin-2-one ring was more active with percentages of inhibition in range of 32-63%. These results indicate that the presence of a bromo substituent at the 5-position and a 4-methoxybenzyl group at the N1-position of indolin-2-one ring is important for the cytotoxic activity.
合成了一系列通过
亚胺键连接的
吲哚-2-酮和喹嗪-4(3H)-酮的杂合物,并测试了它们对五种人类癌
细胞系增殖的抑制活性。我们发现,带有5-
溴取代基的化合物5c在
吲哚-2-酮环上表现出弱的细胞毒活性,在20 μM的浓度下抑制率范围为27%到49%,而其对应的化合物7c在
吲哚-2-酮环的N1位上携带4-甲氧基苄基,活性更强,抑制率范围为32%到63%。这些结果表明,
吲哚-2-酮环在5位的
溴取代基和N1位的4-甲氧基苄基对细胞毒活性是重要的。