PROBLEM TO BE SOLVED: To provide a prophylactic and/or therapeutic agent for diseases associated with autoimmunity, immune deficiency diseases or neurodegenerative diseases, in particular a prophylactic and/or therapeutic agent for sepsis.SOLUTION: The prophylactic and/or therapeutic agent includes a compound of formula (I) or a salt thereof. In the formula (I), A1 is formula (A) or (B) A2 is the formula (B) or the like when A1 is the formula (A) Q1 is -NR1R2 or the like R1 and R2 are each a hydrogen atom, 1-10C alkyl or the like Alk3 is a single bond or the like X is a single bond or the like R3 is 1-10C alkyl or the like Q2 is -NR4R5 or the like R4 and R5 are each a hydrogen atom, 1-10C alkyl or the like Alk4 is a single bond or the like Ar is allylene or the like Y is a single bond, -O- or the like Z is a single bond, -N(R10)- or the like Alk1 and Alk2 are each methylene or the like n1 and n2 are each an integer of 1-3 and R10 is a hydrogen atom, 1-10C alkyl or the like.COPYRIGHT: (C)2013,JPO&INPIT【課題】自己免疫が関与する疾患、免疫不全症または神経変性疾患の予防薬および/または治療薬、特にセプシスの予防薬および/または治療薬の提供。【解決手段】式(I)の化合物又はその塩[式中、A1は、式(A)または(B)を表し、A1が式(A)のときA2は上記式 (B)等を表し、Q1は、-NR1R2等を表し、R1およびR2は、各々水素原子、C1-10アルキル等を表し、Alk3は、単結合等を表し、Xは、単結合等を表し、R3は、C1-10アルキル等を表し、Q2は、-NR4R5等を表し、R4およびR5は、各々水素原子、C1-10アルキル等を表し、Alk4は、単結合等を表し、Arは、アリレン等を表し、Yは、単結合、-O-等を表し、Zは、単結合、-N(R10)-等を表し、Alk1およびAlk2は、各々メチレン等を表し、n1およびn2は、各々1~3の整数を表し、R10は、水素原子、C1-10アルキル等を表す]。【選択図】 なし
