A compound of formula 1
wherein the groups R
1
, R
2
, R
3
, R
4
and n may have the meanings given in the claims and in the specification, and methods for preparing a pharmaceutical composition for the treatment of inflammatory and obstructive respiratory complaints.
一种化合物,其
化学式为1,其中基团R1、R2、R3、R4和n可能具有权利要求书和说明书中给出的含义,以及用于制备用于治疗炎症和阻塞性呼吸疾病的药物组合物的方法。