A novel imidazonaphthyridine derivative having antiallergic, antiinflammatory and antiasthmatic activities, represented by general formula (I), or a pharmacologically acceptable salt thereof, wherein R represents hydrogen, lower alkyl or -CH₂R' wherein R' represents phenyl or pyridyl.
                            一种具有抗过敏、抗炎和抗哮喘活性的新型
咪唑萘啶衍
生物,由通式 (I) 表示,或其药理学上可接受的盐,其中 R 代表氢、低级烷基或 -CH₂R',其中 R' 代表苯基或
吡啶基。