Compounds of general formula (I), their use as calcium receptor-active compounds for the prophylaxis, treatment or amelioration of physiological disorders or diseases associated with disturbances of CaSR activity, such as hyperparathyroidism, pharmaceutical compositions comprising said compounds, and methods of treating diseases with said compounds.[I]CaSR活性の異常と関連のある生理学的障害または疾患、例えば副甲状腺機能亢進症の予防、処置または緩和のための、カルシウム受容体感知化合物として一般式Iで表される化合物、その使用、該化合物を含む医薬組成物、ならびに該化合物により疾患を処置する方法。