Boc-(2s,4r)-4-苄基-吡咯烷-2-羧酸

(2S,4R)-1-(tert-Butoxycarbonyl)-4-(4-fluorobenzyl)pyrrolidine-2-carboxylic acid

(S)-2-tert-butoxycarbonylamino-6-diazo-5-oxohexanoic acid tert-butyl ester