Six series of novel 4-(2-fluorophenoxy)-3,3′-bipyridine derivatives conjugated with aza-aryl formamide/amine scaffords were designed and synthesized through a structure-based molecular hybridization approach. The target compounds were evaluated for c-Met kinase inhibitory activities and cytotoxicity against four cancer cell lines (HT-29, A549, MKN-45 and MDA-MB-231) in vitro. Most compounds exhibited moderate to excellent potency, and the most promising candidate 26c (c-Met kinase IC₅₀ = 8.2 nM) showed a 4.7-fold increase in cytotoxicity against c-Met-addicted MKN-45 cell line in vitro (IC₅₀ = 3 nM), superior to that of Foretinib (IC₅₀ = 23 nM). The preliminary structure–activity relationship indicated that a 1H-benzo [e] [1,3,4]thiadiazine-3-carboxamide-4,4-dioxide moiety as linker contributed to the antitumor potency.

通过基于结构的分子杂交方法，设计合成了六种新颖的与氮杂芳基甲酰胺/胺骨架共轭的4-（2-氟苯氧基）-3,3'-联吡啶衍生物。评估了目标化合物在体外对四种癌细胞系（HT-29，A549，MKN-45和MDA-MB-231）的c-Met激酶抑制活性和细胞毒性。大多数化合物均表现出中等至出色的效力，最有前途的候选蛋白26c（c-Met激酶IC ₅₀  = 8.2 nM）在体外对c-Met上瘾的MKN-45细胞系的细胞毒性增加了4.7倍（IC ₅₀  = 3 nM），优于Foretinib（IC ₅₀ = 23 nM）。初步的结构-活性关系表明，1 H-苯并[e] [1,3,4]噻二嗪-3-羧酰胺-4,4-二氧化物部分作为连接基有助于抗肿瘤作用。