Discovery of piperazinylimidazo[1,2-a]pyridines as novel S4 binding elements for orally active Factor Xa inhibitors
作者:Yasuhiro Imaeda、Tetsuji Kawamoto、Mamoru Tobisu、Noriko Konishi、Katsuhiko Hiroe、Masaki Kawamura、Toshimasa Tanaka、Keiji Kubo
DOI:10.1016/j.bmc.2007.12.024
日期:2008.3.15
recently reported the discovery of orally active sulfonylalkylamide Factor Xa (FXa) inhibitors, as typified by compound 1 (FXa IC(50)=0.061 microM). Since the pyridylpiperidine moiety was not investigated in our previous study, we conducted detailed structure-activity relationship studies on this S4 binding element. This investigation led to the discovery of piperazinylimidazo[1,2-a]pyridine 2b as a novel
我们最近报道了以化合物1为代表的口服活性磺酰基烷基酰胺因子Xa(FXa)抑制剂的发现(FXa IC(50)= 0.061 microM)。由于在我们先前的研究中并未研究吡啶基哌啶部分,因此我们对该S4结合元件进行了详细的结构-活性关系研究。这项研究导致发现哌嗪基咪唑并[1,2-a]吡啶2b作为新型有效的FXa抑制剂(FXa IC(50)= 0.021 microM)。进一步的修饰导致发现2-羟甲基咪唑并[1,2-a]吡啶2e(FXa IC(50)= 0.0090 microM),被发现是一种选择性且口服可生物利用的FXa抑制剂,其CYP3A4抑制作用降低。