| 摘要 |
<p>Novel imidazopyridine derivatives of formula: <CHEM> 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, R1 and R2 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 n is zero and -N(R1)R2 represents the above defined piperazine or homopiperazine ring. The compounds (I) have an antihistaminic activity.</p> |
