Nα,Nβ-Bis-benzyloxycarbonyl-D,L-α-hydrazino-β-phenylpropionsaeure

(+/-)-2-(N,N'-bis(t-butoxycarbonyl)hydrazino)-3-phenylpropanoic acid benzyl ester

L-phenylalanine benzylamide

alpha-氨基-苯丙酰胺盐酸盐(1:1)