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唑衍生物,对自身免疫性疾病具有治疗作用,涉及制备这种衍生物的过程,以及含有这种衍生物的制药组合物,该衍生物具有以下式子:
##STR1##
其中R1是较低的烷基,可以具有一个或多个取自羧基,芳基和羧基(较低)环烷基的取代基; 芳基,可以具有一个或多个取自卤素,较低的烷基,卤代(较低)烷基和较低的烷氧基的取代基; 卤代芳基氨基; 或杂环基; R2是氢,较低的烷基,较低的烷基氨基(较低)烷基,芳基或芳基(较低)烷基; R3是氢,卤素,较低的烷基或较低的烷氧基; n是0到2之间的整数。