作者:Tianan Fang、James R. Corte、Paul J. Gilligan、Yoon Jeon、Honey Osuna、Karen A. Rossi、Joseph E. Myers、Steven Sheriff、Zhen Lou、Joanna J. Zheng、Timothy W. Harper、Jeffrey M. Bozarth、Yiming Wu、Joseph M. Luettgen、Dietmar A. Seiffert、Ruth R. Wexler、Patrick Y.S. Lam
DOI:10.1016/j.bmcl.2020.126949
日期:2020.2
bioavailable FXIa inhibitors has been a challenge. Herein, we describe our efforts to address this challenge by optimization of our imidazole-based macrocyclic series. Our optimization strategy focused on modifications to the P2 prime, macrocyclic amide linker, and the imidazole scaffold. Replacing the amide of the macrocyclic linker with amide isosteres led to the discovery of substituted amine linkers which
口服可生物利用的FXIa抑制剂的发现一直是一个挑战。本文中,我们描述了我们通过优化基于咪唑的大环系列来应对这一挑战的努力。我们的优化策略侧重于修饰P2伯,大环酰胺接头和咪唑支架。用酰胺等排物代替大环接头的酰胺导致发现取代的胺接头,其不仅维持了FXIa结合亲和力,而且改善了大鼠的口服暴露。将优化的大环胺连接基与吡啶骨架结合使用,可得到口服生物可利用的单位数的纳米摩尔FXIa抑制剂的化合物23和24,对相关的凝血酶具有极好的选择性。