The present invention related to compounds of formula (I) wherein R1, R2, ring A and ring Bare as defined in the claims. The compounds are potent inhibitors of the sodium-calcium exchanger (NCX) and are useful in the treatment or prevention of various clinical conditions in which intracellular calcium homeostasis is disturbed, including ischemic diseases and arrhythmias. In particular, the compounds of formula (I) are useful as inotropic agents in the treatment and 10 prevention of conditions in which inotropic support is required to maintain a sufficient level of blood supply, for example, in the treatment of heart failure or in the treatment of patients undergoing surgery.
本发明涉及公式(I)的化合物,其中R1、R2、环A和环B的定义如权利要求所述。这些化合物是
钠钙交换体(NCX)的有效
抑制剂,可用于治疗或预防各种临床病症,其中细胞内
钙平衡受到干扰,包括缺血性疾病和心律失常。特别地,公式(I)的化合物在治疗和预防需要肌力支持以维持足够血液供应
水平的病症方面是有用的,例如在治疗心力衰竭或在治疗接受手术的患者方面。