[EN] 1, 3-DISUBSTITUTED AZETIDINE DERIVATIVES FOR USE AS CCR-3 RECEPTOR ANTAGONISTS IN THE TREATMENT OF INFLAMMATORY AND ALLERGIC DISEASES<br/>[FR] DERIVES D'AZETIDINE 1, 3-DISUBSTITUES A UTILISER EN TANT QU'ANTAGONISTES DU RECEPTEUR CCR3 DANS LE TRAITEMENT DE MALADIES INFLAMMATOIRES ET ALLERGIQUES
申请人:NOVARTIS AG
公开号:WO2005026113A1
公开(公告)日:2005-03-24
Compounds of formula Ia or Ib in free or salt form, wherein Ar, X1, X2, m, R1, Q, Y, R2 and R3 have the meanings as indicated in the specification, are useful for treating conditions that are mediated by CCR-3, for example an inflammatory or allergic condition, particularly an inflammatory or obstructive airways disease. Pharmaceutical compositions that contain the compounds and a process for preparing the compounds are also described.
The efficient synthesis of orthogonallyprotectedglycerols, 2-aminopropane-1,3-diols and 2aminobutane-1,4-diols that can constitute useful tools in heterocyclicchemistry, is reported. These interesting tri-functionalized small synthons were easily prepared from serine or aspartic acid. In addition, these substrates can be readily transformed into their iodide derivatives in very good yields.