4-Anilino-7,8-dialkoxybenzo[g]quinoline-3-carbonitriles as Potent Src Kinase Inhibitors
摘要:
It has been previously reported that appropriately substituted 4-anilinoquinoline-3-carbonitriles are potent inhibitors of Src kinase, with biological activity in vitro and in vivo. Structural modifications to these compounds have been explored, providing the 4-anilinobenzo[g] quinoline-3-carbonitriles as a series with enhanced Src inhibitory properties. The synthesis and structure-activity relationships of these 4-anilino-7,8-dialkoxybenzo[g]quinoline-3-carbonitriles are presented here. Analogues with cyclic basic amine groups attached via ethoxy linkages at the C-8 position were the most active in vitro, with subnanomolar IC50 values against Src kinase observed for a majority of the compounds synthesized. Compound 17d was more potent in vitro than the analogously substituted 4-anilinoquinoline-3-carbonitrile SKI-606, which is undergoing evaluation in clinical trials. The most potent analogue synthesized was 17a, with an IC50 of 0.15 nM against Src kinase and with an IC50 of 10 nM against Src-transformed fibroblasts. Molecular modeling studies provided a rationale for the exceptional activity observed for these compounds, with favorable van der Waals interactions playing the major role. Compound 17c was found to be highly selective for Src kinase when tested against a panel of other kinases, with modest selectivity versus the Src family kinases Lyn and Fyn. Following ip dosing at 50 mg/kg, analogues 17c and 17d were shown to have plasma levels that significantly exceeded the cellular IC50 values against Src-transformed fibroblasts. In an Src-transformed fibroblast xenograft model, both compounds exhibited a significant inhibition of tumor growth.
This invention provides compounds of formula 1, having the structure
1
which are useful as inhibitors of protein tyro sine kinase and are antiproliferative agents.
这项发明提供了具有结构1的化合物,这些化合物可作为蛋白酪氨酸激酶的抑制剂,是抗增殖剂。
[EN] TRICYCLIC PROTEIN KINASE INHIBITORS<br/>[FR] INHIBITEURS TRICYCLIQUES DE PROTEINE KINASE
申请人:AMERICAN HOME PROD
公开号:WO2001047892A1
公开(公告)日:2001-07-05
This invention provides compounds of formula (1) which are useful as inhibitors of protein tyrosine kinase and are antiproliferative agents.