A novel thiazole derivative represented by the following general formula [1] and a pharmaceutically acceptable salt thereof: ##STR1## wherein A is a single bond, a straight-chained or branched lower alkylene group or a straight-chained or branched lower alkenylene group; B is a single bond or --CO--; R.sup.1 is a carboxy group or --CON(R.sup.7)OR.sup.8 (R.sup.7 and R.sup.8 are independently of each other a hydrogen atom or a lower alkyl group); R.sup.2 is a lower alkyl group; R.sup.3 and R.sup.4 are independently of each other a hydrogen atom, a lower alkyl group or a lower alkoxycarbonyl group; R.sup.5 is a hydrogen atom or a halogen atom; and R.sup.6 is a hydrogen atom, a halogen atom, a lower alkyl group, a hydroxy group, a lower alkoxy group, a thiol group, a lower alkylthio group, a lower alkylsulfinyl group, a lower alkylsulfonyl group, a nitro group, an amino group, a substituted amino group, a cyano group, a carboxy group or an acyl group. The compounds of the present invention are useful as therapeutic or preventive drugs for autoimmune diseases and inflammatory diseases.
一种新的
噻唑衍
生物,其通式如下[1],以及其药用盐:##STR1## 其中A是一个单键,一条直链或支链的低碳烷基基团或一条直链或支链的低碳烯基基团;B是一个单键或--CO--; R.sup.1是一个羧基或--CON(R.sup.7)OR.sup.8(R.sup.7和R.sup.8分别独立地是氢原子或低烷基基团);R.sup.2是一个低烷基基团;R.sup.3和R.sup.4分别独立地是氢原子、低烷基基团或低烷氧羰基基团;R.sup.5是一个氢原子或卤原子;R.sup.6是一个氢原子、卤原子、低烷基基团、羟基、低烷氧基团、
硫醇基团、低烷
硫基团、低烷基亚
硫基团、低烷基砜基团、低烷基砜基团、硝基基团、
氨基团、取代
氨基团、
氰基团、羧基或酰基。本发明的化合物可用作自身免疫性疾病和炎症性疾病的治疗或预防药物。