PROBLEM TO BE SOLVED: To provide an agent excellent in preventive and/or therapeutic effects of cardiomyopathy due to autoimmune diseases, inflammation, allergy, asthma, graft rejection, GvHD or sepsis by inhibiting TLR3, 7 and/or 9.SOLUTION: There is provided a compound of the general formula (1) or a salt thereof or a solvate thereof. (1), where R represents a hydrogen atom or a C1-3 alkyl group, Q represents a C1-6 alkylene group, ring S, ring T and ring U represent each independently 5- or 7-membered nitrogen-containing saturated heterocyclic rings, and the 5- or 7-membered nitrogen-containing saturated heterocyclic rings are the same or different and may have 1 and/or 3 substituents selected from a group consisting of a C1-3 alkyl group, a halogen atom, a hydroxyl group and a C1-3 alkoxy group.COPYRIGHT: (C)2014,JPO&INPIT【課題】TLR3、7及び/又は9を阻害し、自己免疫疾患、炎症、アレルギー、喘息、移植片拒絶、GvHD、又は敗血症による心筋症の予防及び/又は治療効果に優れた薬剤を提供すること。【解決手段】次の一般式(1):[式中、Rは、水素原子又はC1-3アルキル基を示し、Qは、C1-6アルキレン基を示し、環S、環T及び環Uは、それぞれ独立して、5乃至7員の含窒素飽和複素環を示し、ここで前記5乃至7員の含窒素飽和複素環は、同一又は異なって、C1-3アルキル基、ハロゲン原子、水酸基及びC1-3アルコキシ基からなる群から選ばれる置換基を1乃至3個有しても良い]で示される化合物若しくはその塩、又はそれらの溶媒和物。【選択図】なし
