Muscarinic Acetylcholine receptor antagonists and methods of using them are provided.
本发明提供了肌肉型乙酰胆碱受体拮抗剂及其使用方法。
Novel long acting bronchodilators for the treatment of respiratory diseases
申请人:Grauert Matthias
公开号:US20050256114A1
公开(公告)日:2005-11-17
The invention relates to compounds of general formula 1
wherein n, A, B, D, L, R
1
, R
2
, R
3
and R
4
may have the meanings given in the claims and in the specification, processes for preparing them, and their use as pharmaceutical compositions, particularly as pharmaceutical compositions for the treatment of respiratory complaints.
Facilitating drug discovery: We describe a novel method for the selective catalytic N-dealkylation of drugmolecules on a nanoporousgold (NPG) catalyst producing valuable N-dealkylated metabolites and intermediates. Various examples examined in this study showed that aerobic catalytic N-dealkylation of drugmolecules on NPG has a broad scope, supporting N-deethylation, N-deisopropylation and N-demethylation