tert-butyl N-[(1S)-1-(4-{2-amino-4-[(methoxycarbonyl)amino]phenyl}pyridin-2-yl)-4-hydroxybutyl]carbamate

methyl N-(3-(but-3-enoylamino)-4-(2-((1S)-1-((tert-butoxycarbonyl)amino)but-3-en-1-yl)pyridin-4-yl)phenyl)carbamate

tert-butyl methyl N,N'-((7S)-2-oxo-2,3,4,5,6,7-hexahydro-1H-8,12-(metheno)-1,9-benzodiazacyclotetradecine-7,15-diyl)biscarbamate

methyl N-{3-amino-4-[2-(1-{[(tert-butoxy)carbonyl]amino}but-3-en-1-yl)pyridin-4-yl]-2-fluorophenyl}carbamate

(S)-methyl 3-amino-4-(2-(1-aminobut-3-enyl)pyridin-4-yl)phenylcarbamate