[(1R)-1-氰基-2-苯基乙基]氨基甲酸叔丁酯

(R)-2-amino-N-((R)-1-methyl-2-oxo-5-phenyl-2,3-dihydro-1H-benzo[e][1,4]diazepin-3-yl)-3-phenylpropanamide

tert-butyl (R)-4-benzyl-5-oxooxazolidine-3-carboxylate