Boc-Leu-Aib-Pro-Leu-Aib-Pro-ONSu

Boc-Leu-Aib-Pro-Leu-Aib-Pro-OMe

Boc-Leu-Aib-Pro-Leu-Aib-Pro-OH

Boc-Leu-Aib-Pro-ONSu

20-benzyl 1-ethyl (2S,8S,11S,14S,17S)-17-(2-((S)-2-((tert-butoxycarbonyl)amino)-4-methylpentanamido)-2-methylpropanamido)-2,11,14-triisobutyl-5,5-dimethyl-4,7,10,13,16-pentaoxo-8-(pyridin-3-ylmethyl)-3,6,9,12,15-pentaazaicosanedioate