A compound of formula 1
wherein: R
1
is C
1
-C
4
-alkyl; R
2
is C
1
-C
4
-alkyl; and R
3
is C
1
-C
4
-alkyl or phenyl, each optionally mono- or polysubstituted, or R
2
and R
3
together are —CH
2
—CH
2
— or —CH
2
—CH
2
—CH
2
—, or the corresponding acid addition salt with a pharmacologically acceptable acid, processes for preparing such compounds, pharmaceutical compositions containing such compounds, and their use in the treatment of inflammatory and obstructive respiratory diseases.
公式为1的化合物,其中:R1为C1-C4-烷基;R2为C1-C4-烷基;R3为C1-C4-烷基或苯基,每个基可选单取代或多取代,或R2和R3一起为-
CH2- -或- - - -,或其相应的药物可接受酸的酸加成盐,制备这种化合物的方法,含有这种化合物的制药组合物,以及它们在治疗炎症和阻塞性呼吸疾病中的用途。