作者:Hiroaki Yamagishi、Takayuki Inoue、Yutaka Nakajima、Jun Maeda、Hiroaki Tominaga、Hiroyuki Usuda、Takeshi Hondo、Ayako Moritomo、Fumihiro Nakamori、Misato Ito、Koji Nakamura、Hiroki Morio、Yasuyuki Higashi、Masamichi Inami、Shohei Shirakami
DOI:10.1016/j.bmc.2017.07.043
日期:2017.10
Janus kinases (JAKs) play a crucial role in cytokine mediated signal transduction. JAK inhibitors have emerged as effective immunomodulative agents for the prevention of transplant rejection. We previously reported that the tricyclic imidazo-pyrrolopyridinone 2 is a potent JAK inhibitor; however, it had poor oral absorption due to low membrane permeability. Here, we report the structural modification
Janus激酶(JAKs)在细胞因子介导的信号转导中起关键作用。JAK抑制剂已成为预防移植排斥的有效免疫调节剂。我们先前曾报道三环咪唑并吡咯并吡啶酮2是强力的JAK抑制剂。然而,由于低的膜渗透性,它的口服吸收差。在这里,我们报告化合物2进入三环二吡咯并吡啶18a的结构修饰,重点是减少极性表面积(PSA),这显示出强大的体外活性,改善的膜通透性和良好的口服生物利用度。化合物18a在大鼠异位心脏移植模型中显示出功效。