PROBLEM TO BE SOLVED: To provide a new compound having an excellent inhibitory activity on the binding between IgE and an IgE receptor (FcεRI), a binding inhibitor between IgE and an IgE receptor (FcεRI), and an excellent anti-allergic agent, anti-asthma agent and anti-inflammatory agent which are highly safe against allergic activity, asthmatic activity and inflammatory activity and can be administered in simple manners at low costs.SOLUTION: There is provided a compound represented by structural formula (2).COPYRIGHT: (C)2014,JPO&INPIT【課題】IgEとIgEレセプター(FcεRI)との結合に対し、優れた結合阻害活性を有する新規化合物、並びに、IgEとIgEレセプター(FcεRI)との結合阻害剤、アレルギー作用、喘息作用、炎症作用に対し、安全性が高く、投薬が安価かつ容易である、優れた抗アレルギー剤、抗喘息剤、及び抗炎症剤の提供。【解決手段】構造式(2)で代表される化合物。【選択図】なし