Compounds represented by the following general formula:
(wherein R1 represents H, halogen, lower alkyl, lower alkoxy, substituted or unsubstituted phenoxy, nitro or cyano, R2 represents H, lower alkyl or lower alkylthio, and R represents a-halogenoalkyl or a group represented by
a process for their preparation, and a medicinal composition containing same having an immunity-controlling action effective against chronic articular rheumatism, viral diseases, cancer, etc.
由以下通式代表的化合物:(其中 R1 代表 H、卤素、低级烷基、低级烷氧基、取代或未取代的苯氧基、硝基或
氰基,R2 代表 H、低级烷基或低级烷
硫基,R 代表 a-卤代烷基或由其制备工艺所代表的基团),以及含有这些化合物的具有免疫调节作用的药物组合物,可有效防治慢性关节风湿病、病毒性疾病、癌症等。