The invention provides an N-benzyl-N-arylsulfonamide derivative, which is an N-benzyl-N-arylsulfonamide compound represented by formula (I) or a pharmaceutically acceptable salt or solvate thereof. The N-benzyl-N-arylsulfonamide derivative is obtained by condensing a substituted nitrobenzene with 5- or 6-membered nitrogen-containing aliphatic heterocycle (the ring B), reducing the nitro group to an amino group, and subjecting the amino group to reductive amination, sulfonamidation; or by subjecting a substituted nitrobenzene to nitro reduction, reductive amination and sulfonamidation, and condensing the resultant intermediate with 5- or 6-membered nitrogen-containing aliphatic heterocycle (the ring B). It has been experimentally demonstrated that the N-benzyl-N-arylsulfonamide derivative of the invention can specifically bind to Kv1.3 potassium channel and inhibit or decrease its activity, and is useful in the treatment of autoimmune diseases caused by abnormal activation of the Kv1.3 potassium channel in human or animals. The invention further provides a medicament or a pharmaceutical composition comprising the N-benzyl-N-arylsulfonamide derivative.
本发明提供了一种N-苄基-N-芳基磺酰胺衍
生物,它是由式(I)代表的N-苄基-N-芳基磺酰胺化合物或其药学上可接受的盐或溶液。N-苄基-N-芳基磺酰胺衍
生物是通过将取代的
硝基苯与 5 或 6 元含氮脂族杂环(环 B)缩合,将硝基还原为
氨基,再将
氨基进行还原胺化、磺酰胺化;或将取代的
硝基苯进行硝基还原、还原胺化和磺酰胺化,再将得到的中间体与 5 或 6 元含氮脂族杂环(环 B)缩合而得到的。实验证明,本发明的N-苄基-N-芳基磺酰胺衍
生物能特异性地与Kv1.3
钾通道结合,抑制或降低其活性,可用于治疗人或动物因Kv1.3
钾通道异常激活引起的自身免疫性疾病。本发明进一步提供了一种包含N-苄基-N-芳基磺酰胺衍
生物的药物或药物组合物。