Balancing hERG affinity and absorption in the discovery of AZD5672, an orally active CCR5 antagonist for the treatment of rheumatoid arthritis
作者:John G. Cumming、Howard Tucker、John Oldfield、Colin Fielding、Adrian Highton、Alan Faull、Martin Wild、Dearg Brown、Stuart Wells、John Shaw
DOI:10.1016/j.bmcl.2011.12.117
日期:2012.2
reducing affinity at the hERG cardiac ion channel. Replacement of one aromatic ring in the diphenylpropyl region with less lipophilic, saturated heterocyclic rings and subsequent optimisation of the other phenyl ring led to the identification of clinical compound AZD5672 which retained excellent potency while reducing hERG affinity. Modulating lipophilicity affected the interplay between potency, hERG
为了减少在hERG心脏离子通道上的亲和力,研究了对一系列有效和选择性取代的1-(3,3-二苯丙基)-哌啶苯基乙酰胺CCR5拮抗剂的修饰。用较少亲脂性的饱和杂环取代二苯丙基区域中的一个芳环,然后优化另一个苯环,导致鉴定出临床化合物AZD5672,该化合物保留了出色的功效,同时降低了hERG亲和力。调节亲脂性影响效能,hERG亲和力和吸收之间的相互作用。已发现AZD5672在这些特性之间具有可接受的平衡,并已进入II期临床试验,以检验抑制CCR5会在类风湿性关节炎治疗中带来益处的假设。