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 trifluoromethyl; 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 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.
化合物的式子为:##STR1## 其中R为氢,C.sub.1-6烷基,C.sub.3-6环烷基,苯基,可以选用1至3个取代基,每个取代基都是独立选择的,可以是卤素,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;
吡啶基;
噻吩基,可以选用卤素或C.sub.1-6烷基取代;>C.dbd.X是式子>C.dbd.O(a),>C.dbd.N--O--R.sup.1(b),或>C.dbd.CH--R.sup.2(c)的基团;这些化合物是
磷酸二酯酶III和IV的有效
抑制剂,可用于过敏性疾病,特应性疾病和相关疾患的治疗。本发明还提供了制备这些化合物的中间体,含有这些化合物作为活性成分的制药组合物,以及制备这些化合物和制药组合物的方法。