[EN] PIPERAZINE DERIVATIVES FOR USE AS CCR-3 RECEPTOR ANTAGONISTS IN THE TREATMENT OF ASTHMA<br/>[FR] DERIVES PIPERAZINES A UTILISER COMME ANTAGONISTES DU RECEPTEUR CCR-3 POUR LE TRAITEMENT DE L'ASTHME
申请人:HOFFMANN LA ROCHE
公开号:WO2003045393A1
公开(公告)日:2003-06-05
The present invention relates to piperazine derivatives of Formula (I), wherein: R1-R4, A, L, and X are as defined in the specification. The compounds are useful as CCR-3 receptor antagonists, and therefore, may be used for the treatment of CCR-3 mediated diseases such as asthma.