Discovery of novel quaternary ammonium derivatives of (3R)-quinuclidinol esters as potent and long-acting muscarinic antagonists with potential for minimal systemic exposure after inhaled administration: identification of (3R)-3-{[hydroxy(di-2-thienyl)acetyl]oxy}-1-(3-phenoxypropyl)-1-azoniabicyclo[2.2.2]octane bromide (aclidinium bromide).
Prat M, Fern?ndez D, Buil MA, Crespo MI, Casals G, Ferrer M, Tort L, Castro J, Monle?n JM, Gavald? A, Miralpeix M, Ramos I, Dom?nech T, Vilella D, Ant?n F, Huerta JM, Espinosa S, L?pez M, Sentellas S, Gonz?lez M, Albert? J, Segarra V, C?rdenas A, Beleta J, Ryder H. Discovery of novel quaternary ammonium derivatives of (3R)-quinuclidinol esters as potent and long-acting muscarinic antagonists with potential for minimal systemic exposure after inhaled administration: identification of (3R)-3-{[hydroxy(di-2-thienyl)acetyl]oxy}-1-(3-phenoxypropyl)-1-azoniabicyclo[2.2.2]octane bromide (aclidinium bromide). J Med Chem. 2009 Aug 27; 52(16):5076-92.