A composition comprising a compound represented by the following general formula (I): [for the symbols in the formula, refer to the definition of the specification] or a salt thereof has an excellent CaSR agonist action, and is a pharmaceutical, CaSR agonist agent The present invention provides a therapeutic agent for diseases and the like which is improved by the activation of CaSR, and a seasoning and a richness-imparting agent.下記一般式（Ｉ）：［式中の記号は、明細書の定義を参照のこと］で示される化合物またはその塩を含む組成物は、優れたＣａＳＲアゴニスト作用を有し、医薬、ＣａＳＲアゴニスト剤、ＣａＳＲの活性化により改善される疾患等の治療剤、ならびに調味料およびコク味付与剤を提供する。
