A compound of formula 1
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.
一种化合物,其
化学式为11,其中:R1是C1-C4烷基;R2是C1-C4烷基;R3是C1-C4烷基或苯基,每个基团都可以是单取代或多取代的,或者R2和R3一起是-
CH2- -或- - - -,或者是具有药理可接受酸的相应酸加成盐,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道疾病中的应用。