N-ACETYL-4-BENZOQUINONE IMINE

N-ACETYL-5-BENZYLOXY-DL-TRYPTOPHAN

2-Acetylaminopropionic acid

N-Acetyl-L-aspartic acid

N-Acetyl-L-histidine

N-ACETYL-L-TYROSINE ETHYL ESTER

Boc-O-(2-bromo-Cbz)-L-Tyrosine