QUINUCLIDINE ESTERS OF 1-AZAHETEROCYCLYLACETIC ACID AS ANTIMUSCARINIC AGENTS, PROCESS FOR THEIR PREPARATION AND MEDICINAL COMPOSITIONS THEREOF

摘要

The invention relates to compounds of formula (I), wherein A, R1, R2, X, m and n are as defined in the specification, as selective M3 receptor antagonists, process for their preparation, composition comprising them and the therapeutic use thereof. Said compounds may be used in the treatment of, inter alia, a respiratory disease such as asthma and COPD.