The invention relates to novel thieno-(3',4'-4,5)imidazo(2,1-b)thiazole derivatives of the formula ##STR1## in which R.sub.1 denotes hydrogen, halogen or CF.sub.3 and R.sub.2 denotes hydrogen or C.sub.1 -C.sub.4 alkyl and, in the case in which R.sub.2 denotes hydrogen, their pharmaceutically utilizable salts, a process for the preparation of these compounds and their use for the treatment of cancer or rheumatoid arthritis caused by a defective immune system.
本发明涉及一种新型的
噻吩-(3',4'-4,5)
咪唑(2,1-b)
噻唑衍
生物,其
化学式为##STR1##其中,R.sub.1代表氢、卤素或CF.sub.3,R.sub.2代表氢或C.sub.1-C.sub.4烷基;在R.sub.2代表氢的情况下,还包括其药学上可利用的盐。本发明还涉及制备这些化合物的方法,以及它们在治疗因免疫系统缺陷引起的癌症或类风湿性关节炎中的应用。