(R)-3-氨基-4-(2,4,5-三氟苯基)丁酸

二碳酸二叔丁酯

(R)-tert-butyl (4-hydroxy-1-(2,4,5-trifluorophenyl)butan-2-yl)carbamate

(R)-cyclohexyl 3-(tert-butoxycarbonyl amino)-4-(2,4,5-trifluorophenyl)butyrate