The invention provides (R) -1- [3- (R) -cyclohexyl-hydroxy-phenyl- methyl) -isoxazol-5-ylmethyl] -3- (3-f luoro-phenoxy) -1-azonia- bicyclo[2.2.2]octane 2-hydroxy ethanesulf onate, pharmaceutical compositions containing the compound and its use as a muscarinic antagonists, for the treatment of chronic obstructive pulmonary disease.Linvention concerne le 2-hydroxy-éthanesulfonate de (R)-1-[3-(R)-cyclohexyl-hydroxy-phényl-méthyl)-isoxazol-5-ylméthyl]-3- (3-fluoro-phénoxy)-1-azonia-bicyclo[2.2.2]octane, des compositions pharmaceutiques renfermant le composé et son utilisation en tant quantagoniste muscarinique, pour le traitement de la bronchopneumopathie chronique obstructive.
