Synthesis and Structure−Activity Relationships of Soluble 7-Substituted 3-(3,5-Dimethoxyphenyl)-1,6-naphthyridin-2-amines and Related Ureas as Dual Inhibitors of the Fibroblast Growth Factor Receptor-1 and Vascular Endothelial Growth Factor Receptor-2 Tyrosine Kinases
作者:Andrew M. Thompson、Amy M. Delaney、James M. Hamby、Mel C. Schroeder、Teresa A. Spoon、Sheila M. Crean、H. D. Hollis Showalter、William A. Denny
DOI:10.1021/jm0500931
日期:2005.7.1
5-Dimethoxyphenyl) and 3-phenyl analogues were prepared from 7-acetamido-2-tert-butylureas by alkylation with benzyl omega-iodoalkyl ethers, debenzylation, and amination, followed by selective cleavage of the 7-N-acetamide. 3-(2,6-Dichlorophenyl) analogues were prepared from the 7-fluoro-2-amine by displacement with substituted alkylamines, followed by selective acylation of the resulting substituted naphthyridine-2
7位取代的3-芳基-1,6-萘啶-2,7-二胺和相关的2-脲是成纤维细胞生长因子受体1(FGFR-1)和血管内皮生长因子受体2(VEGFR-2)的抑制剂。3-(3,5-二甲氧基苯基)和3-苯基类似物由7-乙酰氨基-2-叔丁基脲通过苄基ω-碘烷基醚烷基化,脱苄基化和胺化,然后选择性裂解7-N-来制备。乙酰胺。通过用取代的烷基胺置换从7-氟-2-胺制备3-(2,6-二氯苯基)类似物,然后用烷基异氰酸酯选择性地酰化所得的取代的萘啶-2,7-二胺。3-(3,5-二甲氧基苯基)衍生物是FGFR和VEGFR的低纳摩尔抑制剂,相对于PDGFR和c-Src具有高度选择性(> 100倍)。7侧链碱基的碱基强度或空间位置的变化对效价(<5倍)或选择性(<20倍)的影响很小。3-(2,6-二氯苯基)-2-脲衍生物对VEGFR的活性略低,选择性较低,对PDGFR(约10倍)和c-Src(约500倍)更有效。通常,3-(3