申请人:Boehringer Ingelheim Pharmaceuticals Inc.
公开号:EP0137979A1
公开(公告)日:1985-04-24
Compounds of the formula
wherein
R, is hydrogen or alkyl of 1 to 4 carbon atoms;
R2 is hydrogen, methyl, hydroxyl, alkoxy of 1 to 4 carbon atoms, di(alkyl of 1 to 2 carbon atoms)amino-(alkoxy of 1 to 4 carbon atoms) or -HN-CO-CO-OR,;
A is
R3 is hydrogen, methyl, alkoxy of 1 to 4 carbon atoms, hydroxyl, amino, alkanoyloxy of 1 to 2 carbon atoms, di(alkyl of 1 to 2 carbon atoms)amino-(alkoxy of 1 to 4 carbon atoms) or acetamido; and
R. is hydrogen, amino, alkoxy of 1 to 4 carbon atoms, halogen or -HN-CO-CO-OR,; and, when R, is hydrogen, non-toxic, pharmacologically acceptable salts thereof. The compounds as well as their salts are useful for the treatment of immunological, inflammatory and allergic disorders such as allergic asthma, rhinitis, conjunctivitis, hay fever, urticaria, food allergies and the like.
式中的化合物
式中
R,是氢或 1 至 4 个碳原子的烷基;
R2 是氢、甲基、羟基、1 至 4 个碳原子的烷氧基、二(1 至 2 个碳原子的烷基)氨基-(1 至 4 个碳原子的烷氧基)或 -HN-CO-CO-OR,;
A 是
R3 是氢、甲基、1 至 4 个碳原子的烷氧基、羟基、氨基、1 至 2 个碳原子的烷酰氧基、二(1 至 2 个碳原子的烷基)氨基-(1 至 4 个碳原子的烷氧基)或乙酰氨基;和
R.是氢、氨基、1 至 4 个碳原子的烷氧基、卤素或-HN-CO-CO-OR,;当 R.是氢时,是其无毒、药理学上可接受的盐。这些化合物及其盐类可用于治疗免疫、炎症和过敏性疾病,如过敏性哮喘、鼻炎、结膜炎、花粉热、荨麻疹、食物过敏等。