N-tBOC-Gly-L-Pro-O-benzyl-L-Ser-1-anthraquinonylhydrazide

methyl (S)-2-(O-benzyl-N-(tert-butoxycarbonyl)-L-seryl)-1,2,3,4-tetrahydroisoquinoline-3-carboxylate

Boc-L-Ser(Bzl)-D-Ala-OH