US7807829B2 - Process for {3-[2(r)-[(1r)-1-[3,5-Bis(trifluoromethyl) Phenyl]ethoxy]-3(s)-(4-Fluorophenyl)morpholin-4-Yl]methyl]-5-Oxo-4,5-Dihydro-[1,2,4]-Triazol-1-Yl}phosphonic Acid