The present invention relates to novel 1,3-dihydro-2H-imidazo[4,5-b]quinolin-2-one derivatives of formula ##STR1## wherein R is hydrogen, C.sub.1-6 alkyl, C.sub.3-6 cycloalkyl, phenyl optionally substituted with from 1 to 3 substituents each independently selected from halo, hydroxy, C.sub.1-6 alkyloxy, C.sub.5-6 cycloalkyloxy, C.sub.1-6 alkyl or trifiuoromethyl; pyridinyl; thienyl optionally substituted with halo or C.sub.1-6 alkyl; and >C.dbd.X is a radical of formula >C.dbd.O (a), >C.dbd.N--O--R.sup.1 (b), or >C.dbd.CH--R.sup.2 (c); the pharmaceutically acceptable addition salts and stereochemically isomeric forms thereof, said compounds being potent inhibitors of both phosphodiesterase III and IV, which are useful in the treatment of warm-blooded animals suffering from allergic disorders, atopic diseases and related afflictions. Intermediates in the preparation thereof. Pharmaceutical compositions containing said compounds as an active ingredient. Methods of preparing said compounds and pharmaceutical compositions.
本发明涉及一种新型的1,3-二氢-
2H-咪唑[4,5-b]
喹啉-2-酮衍
生物,其
化学式为##STR1##其中R为氢、C.sub.1-6烷基、C.sub.3-6环烷基、苯基,该苯基可以选自卤素、羟基、C.sub.1-6烷氧基、C.sub.5-6环烷氧基、C.sub.1-6烷基或三
氟甲基的1-3个取代基;
吡啶基;
噻吩基,该
噻吩基可以选自卤素或C.sub.1-6烷基;以及>C.dbd.X是
化学式>C.dbd.O(a)、>C.dbd.N--O--R.sup.1(b)或>C.dbd.CH--R.sup.2(c)的基团;其药学上可接受的加成盐和立体
化学异构体,该化合物是
磷酸二酯酶III和IV的有效
抑制剂,可用于治疗患有过敏性疾病、特应性疾病及相关疾病的温血动物。该制备的中间体。含有该化合物作为活性成分的药物组合物。制备该化合物和药物组合物的方法。