PROBLEM TO BE SOLVED: To provide a therapeutic agent for diseases related to cholinergic of central nervous system (CNS) and/or peripheral nervous system (PNS), diseases related to smooth muscular contraction, endocrine diseases, diseases related to neurodegeneration and the like, having a strong regulation action of an &alpha；7 nicotinic acetylcholine receptor (&alpha；7 nAChR).SOLUTION: There is provided a compound of the formula (I) and a salt thereof. (I), where A represents CRor a nitrogen atom, X-Y-Z represents N-CO-NRRand the like, R, R, Rand Rare same or different and represent a hydrogen atom and the like, W represents CH or a nitrogen atom, Rrepresents a hydrogen atom and the like, R, R, Rand Rare same or different and represent a hydrogen atom and the like, R, R, Rand Rare same or different and represent Ccycloalkyl which may be substituted and the like, Ris same or different and represents a hydrogen atom and the like and n represents 1 or 2.【課題】強いα７ニコチン性アセチルコリン受容体（α７ ｎＡＣｈＲ）の調節作用を有し、中枢神経系（ＣＮＳ）及び／又は末梢神経系（ＰＮＳ）のコリン作動性に関する疾患、平滑筋収縮に関する疾患、内分泌疾患、神経変性に関する疾患等の治療薬の提供。【解決手段】式（Ｉ）の化合物又はその塩。［式中、Ａは、ＣＲ１Ｄ又は窒素原子を表し、Ｘ－Ｙ－Ｚは、Ｎ－ＣＯ－ＮＲ４ＡＲ４Ｂ等を表し、Ｒ１Ａ、Ｒ１Ｂ、Ｒ１Ｃ及びＲ１Ｄは、同一又は異なって、水素原子等を表し、Wは、ＣＨ又は窒素原子を表し、Ｒ２は、水素原子等を表し、Ｒ３Ａ、Ｒ３Ｂ、Ｒ３Ｃ及びＲ３Ｄは、同一又は異なって、水素原子等を表し、Ｒ４Ａ、Ｒ４Ｂ、Ｒ５及びＲ７は、同一又は異なって、置換されていてもよいＣ３－１０シクロアルキル等を表し、Ｒ６は、同一又は異なって、水素原子等を表し、ｎは、１又は２を表す］【選択図】なし
