Cbz-MeAla-NHNH-Boc

Cbz-Ile-MeIle-MeAla-NHNH-Boc

N'-{(S)-2-[((S)-2-Amino-3-methyl-butyryl)-methyl-amino]-propionyl}-hydrazinecarboxylic acid tert-butyl ester

Cbz-MeIle-MeAla-NHNH-Boc

N'-{(S)-2-[Methyl-((2S,3S)-3-methyl-2-methylamino-pentanoyl)-amino]-propionyl}-hydrazinecarboxylic acid tert-butyl ester

Boc-βAla-((2R)-2-hydroxy-4-triethylsilyloxy-4-methyl-pentanoic acid)-Pro-Ile-MeIle-MeAla-NHNH-Boc

Boc-βAla-Hmp-Pro-Ile-Val-MeAlaNHNHBoc

N'-[(S)-2-({(S)-2-[((2S,3S)-2-{[(S)-1-((R)-2-Hydroxy-4-methyl-4-triethylsilanyloxy-pentanoyl)-pyrrolidine-2-carbonyl]-amino}-3-methyl-pentanoyl)-methyl-amino]-3-methyl-butyryl}-methyl-amino)-propionyl]-hydrazinecarboxylic acid tert-butyl ester

Boc-βAla-((2R)-2-hydroxy-4-triethylsilyloxy-4-methyl-pentanoic acid)-Pro-Ile-MeVal-MeAla-NHNH-Boc

Boc-βAla-Hmp-Pro-Ile-MeIle-MeAlaNHNHBoc

Cbz-Ile-Val-MeAla-NHNH-Boc