申请人:Dompe Farmaceutici S.p.A.
公开号:US05023256A1
公开(公告)日:1991-06-11
Novel imidazopyridine derivatives of formula: ##STR1## wherein, R represents an alkoxyalky radical having 4-6 carbon atoms or a benzyl radical optionally substituted by a halogen atom, an alkyl or alkoxy radical having up to 3 carbon atoms, X represents hydrogen or an alkyl radical having up to 3 carbon atoms, n represents 0 or 1 m represents an integer of from 2 to 5 inclusive, R.sub.1 and R.sub.2 may be the same or different and represent a saturated or unsaturated alkyl radical containing up to 4 carbon atoms or they, taken together with the adjacent nitrogen atom, may form a pyrrolidine, piperazine or homopiperazine ring which may be optionally substituted by an alkyl radical containing up to 3 carbon atoms, provided that when n is zero also m is zero and --N(R.sub.1)R.sub.2 represents the above defined piperazine or homopiperazine ring. The compounds (I) have an antihistaminic activity.
新型咪唑吡啶衍生物的化学式:##STR1##其中,R代表具有4-6个碳原子的烷氧基烷基基团或苄基基团,可选择地被卤原子、具有最多3个碳原子的烷基或烷氧基基团替代;X代表氢或具有最多3个碳原子的烷基基团;n代表0或1;m代表一个从2到5的整数,包括2和5;R.sub.1和R.sub.2可以相同也可以不同,代表含有最多4个碳原子的饱和或不饱和烷基基团,或者它们与相邻的氮原子一起可以形成一个可选择地被最多3个碳原子的烷基基团替代的吡咯烷、哌嗪或同源哌嗪环,前提是当n为零时,m也为零,并且--N(R.sub.1)R.sub.2代表上述定义的哌嗪或同源哌嗪环。这些化合物(I)具有抗组胺活性。