[[p-(2-methoxyethyl)phenoxy]methyl]oxirane Aprepitant Impurity 14 Aprepitant Aprepitant Impurity 9 Aprepitant (2R,3S)-2-[(1S)-1-[3,5-Bis(trifluoroMethyl)phenyl]ethoxy]-3-(4-fluorophenyl)Morpholine hydrochloride (2R,3S)-2-((R)-1-(3,5-Bis(trifluoromethyl)phenyl)ethoxy)-3-(4-fluorophenyl)morpholine hydrochloride Aprepitant Impurity A Enantiomer Aprepitant Impurity 13 Aprepitant Impurity 17 (R,R,R)-Aprepitant (2R)-2-[(1R)-1-[3,5-Bis(trifluoroMethyl)phenyl]ethoxy]-3-(4-fluorophenyl)-5,6-dihydro-2H-1,4-oxazine (1S,2S,3R)-Aprepitant Aprepitant Defluoro Aprepitant Aprepitant Impurity B HCl 5-[[(2S,3R)-2-[(1S)-1-[3,5-bis(trifluoromethyl)phenyl]ethoxy]-3-(4-fluorophenyl)morpholin-4-yl]methyl]-1,2-dihydro-1,2,4-triazol-3-one Aprepitant Impurity 11 HCl