Heterocyclic substituted piperazinone derivatives as tachykinin receptor antagonists

摘要

The present invention relates to substituted piperazinone derivatives of formula (1) or stereoisomers, or pharmaceutically acceptable salts thereof and their use as tachykinin receptor antagonists. Such antagonists are useful in the treatment of tachykinin-mediated diseases and conditions disclosed herein including: asthma, cough, and bronchitis. The present invention also relates to intermediates useful in the preparation of compounds of formula (1).