The present invention provides a compound or a salt thereof having a calcium-sensing receptor antagonistic activity, and being expected to be useful as an agent for preventing or treating heart failure, pulmonary hypertension, or the like. The compounds represented by formula (I) or a salt thereof has a calcium-sensing receptor antagonistic activity, and is expected to be useful as an agent for preventing or treating heart failure, pulmonary hypertension, or the like, wherein each symbol is as described in the specification.
本发明提供了一种化合物或其盐,该化合物或其盐具有
钙传感受体拮抗活性,有望用作预防或治疗心力衰竭、肺动脉高压或类似疾病的药物。式(I)代表的化合物或其盐具有
钙传感受体拮抗活性,有望用作预防或治疗心衰、肺动脉高压或类似疾病的药物,其中各符号如说明书所述。