with the potential for improving cardiac function in heart failure patients. However, the low plasma stability of apelin-13 necessitates continuous intravenous infusion for therapeutic use. There are several approaches to increase the stability of apelin-13 including attachment of pharmacokinetic enhancing groups, stabilized peptides, and Fc-fusion approaches. We sought a small-molecule APJ receptor
Apelin-13是Apelin受体(APJ)受体的内源性肽激动剂,具有改善心力衰竭患者心脏功能的潜力。然而,apelin-13的低血浆稳定性需要连续静脉输注以用于治疗。有几种增加apelin-13稳定性的方法,包括附加药代动力学增强基团,稳定的肽和Fc融合方法。我们寻求一种小分子APJ受体激动剂的方法来靶向具有适合长期口服给药的药代动力学特征的化合物。这份手稿描述了
嘧啶系列的顺序优化,导致
吡啶酮14,用体外效力相当于内源性
配体apelin-13,在多种临床前物种中具有出色的口服
生物利用度和PK谱。在急性大鼠压力-容量环模型中,化合物14表现出与apelin-13相似的强大药效学作用,并已被推荐作为临床候选药物。