L-aspartyl-N-methyl-L-phenylalanine methyl ester hydrobromide

{(R)-1-[({[(S)-1-Benzyl-2-oxo-2-(N'-propionyl-hydrazino)-ethyl]-methyl-carbamoyl}-methyl)-carbamoyl]-ethyl}-carbamic acid benzyl ester

(S)-2-[((S)-2-Amino-4-methyl-pentanoyl)-methyl-amino]-3-phenyl-propionic acid methyl ester

(S)-N-(2-chloroethyl)-N-methylphenylalanine methyl ester

(R)-2-Amino-N-({[(S)-1-benzyl-2-oxo-2-(N'-propionyl-hydrazino)-ethyl]-methyl-carbamoyl}-methyl)-propionamide