(3S)-N-叔丁氧羰基-3-氨基-4-(2,4,5-三氟苯基)丁酸; (S)-3-(BOC-氨基)-4-(2,4,5-三氟苯基)丁酸; (S)-N-BOC-3-氨基-4-(2,4,5-三氟苯基)丁酸; (S)-西他列汀 N-BOC-酸杂质; BOC-(S)-3-氨基-4-(2,4,5-三氟苯基)丁酸; (BETAS)-BETA-叔丁氧羰基氨基-2,4,5-三; 西他利汀杂质 P; (S)-3-叔丁氧羰基氨基-4-2,4,5-三氟苯基丁酸;

(S)-3-(tert-butoxycarbonylamino)-4-(2,4,5-trifluorophenyl)butanoic acid; 3-aMino-5-(tert-butoxy)-5-oxo-4-(2,4,5-trifluorophenyl)pentanoic acid; Boc-(S)-3-aMino-4-(2,4,5-rifluoro-phenyl)-butyric acid; (S)-3-(Boc-aMino)-4-(2,4,5-trifluorophenyl)butanoic acid; (S)-Sitagliptin N-Boc-Acid IMpurity; (S)-N-Boc-3-Amino-4-(2,4,5-trifluorophenyl)butanoic acid; (3S)-3-{[(tert-Butoxy)carbonyl]amino}-4-(2,4,5-trifluorophenyl)butanoic acid; Boc-(S)-3-amino-4-(2,4,5-trifluorophenyl)butyric acid≥ 98% (HPLC);