The present invention relates to the use of the compounds of general formula 1 wherein the groups R<;SUP>;1<;/SUP>;, R<;SUP>;2 <;/SUP>;and R<;SUP>;3 <;/SUP>;may have the meanings specified in the claims and in the description, for preparing a pharmaceutical composition for the treatment of respiratory complaints, as well as new compounds of formula 1, processes for preparing them, and pharmaceutical formulations containing them.本發明係關於以下通式1之化合物用於製備供治療呼吸性疾病之醫藥組合物的用途,以及新穎式1之化合物、其製備方法及含有其之醫藥調配物: 1;其中基團R1、R2及R3可具有申請專利範圍及說明書中所指定之涵義。