tert-butyl N-[(12E,15S)-5-[(methoxycarbonyl)amino]-9-oxo-17-{[2-(trimethylsilyl)-ethoxy]-methyl}-8,17,19-triazatricyclo-[14.2.1.02,7]nonadeca-1(18),2,4,6,12,16(19)-hexaen-15-yl]-carbamate

methyl (9R,14S)-14-amino-5-[(methoxycarbonyl)amino]-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

methyl (9R,11E,14S)-14-{[(tert-butoxy)carbonyl]amino}-5-[(methoxycarbonyl)amino]-16-{[2-(trimethylsilyl)ethoxy]methyl}-8,16,18-triazatricyclo[13.2.1.02,7]octadeca-1(17),2,4,6,11,15(18)-hexaene-9-carboxylate

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

methyl (9R,14S)-14-{[(3R)-3-(3-chlorophenyl)-3-hydroxypropyl]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