申请人:Teijin Limited
公开号:US04383996A1
公开(公告)日:1983-05-17
A derivative of thiazolo [3,2-a] pyrimidine expressed by formula (I) ##STR1## (where R indicates a phenyl group or a benzyl group which has a halogen atom, a lower alkyl or lower alkyloxy group as a substituent group, an alicyclic group or an arylethyl group), and a process for the preparation of a compound of formula (I) comprising cyclizing a compound expressed by formula (II) by application of heat ##STR2## (where a definition of R is as same as that given in case of formula (I) and R' indicates a halogen atom or lower alkyloxy group). A drug which contains this compound as active ingredient is useful for curing autoimmune diseases such as rheumatoid arthritis, nephritis, etc.
一种由式(I)表示的噻唑并[3,2-a]嘧啶衍生物##STR1##(其中R表示苯基或苄基,其具有卤原子、较低烷基或较低烷氧基作为取代基,脂环基或芳基乙基基团),以及制备式(I)化合物的方法,包括通过加热使式(II)表示的化合物环化##STR2##(其中R的定义与式(I)情况下给出的相同,R'表示卤原子或较低烷氧基)。包含该化合物作为活性成分的药物对治疗类风湿性关节炎、肾炎等自身免疫疾病有用。