| 摘要 |
<p>A novel imidazonaphthyridine derivative represented by general formula (I) and a pharmacologically acceptable salt thereof, having immunomodulatory and bronchodilator effects, wherein R1 represents hydrogen or X-H wherein X represents NR2 (R2 being hydrogen, lower alkyl, cycloalkyl, aralkyl or cyano), C(CO¿2R?3)2 (R3 being lower alkyl) or CHR4 (R4 being cyano or nitro).</p> |
