methyl (9R,14S)-14-amino-17-cyano-5-[(methoxycarbonyl)amino]-8-(trifluoroacetyl)-16-{[2-(trimethylsilyl)ethoxy]methyl}-8,16,18-triazatricyclo[13.2.1.02,7]octadeca-1(17),2,4,6,15(18)-pentaene-9-carboxylate

(R)-methyl 2-(N-(2-(2-((S)-1-((tert-butoxycarbonyl)amino)but-3-en-1-yl)-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-imidazol-4-yl)-5-((methoxycarbonyl)amino)phenyl)-2,2,2-trifluoroacetamido)pent-4-enoate

methyl (9R,14S)-14-{[(tert-butoxy)carbonyl]amino}-17-cyano-5-[(methoxycarbonyl)amino]-8-(trifluoroacetyl)-16-{[2-(trimethylsilyl)ethoxy]methyl}-8,16,18-triazatricyclo[13.2.1.02,7]octadeca-1(17),2,4,6,15(18)-pentaene-9-carboxylate

(R)-methyl 2-(2-(2-((S)-1-(tert-butoxycarbonylamino)but-3-en-1-yl)-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-imidazol-4-yl)-5-(methoxycarbonylamino)phenylamino)pent-4-enoate

tert-butyl N-[(1S)-1-(4-{2-bromo-4-[(methoxycarbonyl)-amino]phenyl}-1-{[2-(trimethylsilyl)ethoxy]methyl}-1H-imidazol-2-yl)but-3-en-1-yl]carbamate

methyl (9R,14S)-17-bromo-14-{[(tert-butoxy)carbonyl]amino}-5-[(methoxycarbonyl)amino]-8-(trifluoroacetyl)-16-{[2-(trimethylsilyl)ethoxy]methyl}-8,16,18-triazatricyclo[13.2.1.02,7]octadeca-1(17),2,4,6,15(18)-pentaene-9-carboxylate

{3-bromo-4-[2-((S)-1-tert-butoxycarbonylaminobut-3-enyl)-3H-imidazol-4-yl]phenyl}carbamic acid methyl ester