According to one aspect of the invention, there is provided a pharmaceutical formulation for administration by inhalation comprising a compound of formula (I),
wherein
R1 represents C1-6 alkyl or C1-6 haloalkyl;
R2 represents -C(=O)-aryl or -C(=O)-heteroaryl;
R3 represents hydrogen, methyl (which may be in either the α or β configuration) or methylene;
R4 and R5 are the same or different and each represents hydrogen or halogen; and
represents a single or a double bond;
and salts and solvates thereof together with a long-acting β2-adrenoreceptor agonist which formulation has a therapeutically useful effect in the treatment of inflammatory disorders of the respiratory tract over a period of 24 hours or more.
根据本发明的一个方面,提供了一种用于吸入给药的药物制剂,其中包含式 (I) 化合物、
其中
R1 代表 C1-6 烷基或 C1-6 卤代烷基;
R2 代表-C(=O)-芳基或-C(=O)-杂芳基;
R3 代表氢、甲基(可以是 α 或 β 构型)或亚甲基;
R4 和 R5 相同或不同,各自代表氢或卤素;以及
代表单键或双键;
及其盐类和溶剂,以及长效 β2-
肾上腺素受体激动剂,该制剂在治疗呼吸道炎症性疾病方面具有 24 小时或更长时间的治疗作用。