申请人:Fujisawa Pharmaceutical Co., Ltd.
公开号:US04397849A1
公开(公告)日:1983-08-09
This invention relates to novel benzothiazine derivatives having therapeutic effect on autoimmune diseases, to processes for preparation of such derivatives, and to pharmaceutical compositions containing such derivatives, the derivatives having the formula: ##STR1## wherein R.sup.1 is lower alkyl which may have one or more substituents selected from carboxy, aryl and carboxy(lower)cycloalkyl; aryl which may have one or more substituents selected from halogen, lower alkyl, halo(lower)alkyl and lower alkoxy; haloarylamino; or heterocyclic group; R.sup.2 is hydrogen, lower alkyl, lower alkylamino(lower)alkyl, aryl or ar(lower)alkyl; R.sup.3 is hydrogen, halogen, lower alkyl or lower alkoxy; and n is an integer 0 to 2.
本发明涉及一种新的苯并噻嗪衍生物,具有治疗自身免疫性疾病的作用,以及制备这种衍生物的过程和含有这种衍生物的制药组合物,该衍生物具有以下结构式:##STR1## 其中,R.sup.1是低碳基,可以具有一个或多个取代基,所选取代基包括羧基,芳基和羧基(低)环烷基;芳基,可以具有一个或多个取代基,所选取代基包括卤素,低碳基,卤代(低)烷基和低碳氧基;卤代芳胺基;或杂环基;R.sup.2是氢,低碳基,低碳基氨基(低)烷基,芳基或芳(低)烷基;R.sup.3是氢,卤素,低碳基或低碳氧基;n是0到2的整数。