4-[N',N''-bis(tert-butyloxycarbonyl)guanidino]phenyl N-(benzyloxycarbonyl)-α-(difluoromethyl)-D,L-phenylalaninate

(S)-3-[4-(4-{tert-Butoxycarbonylamino-[(Z)-tert-butoxycarbonylimino]-methyl}-piperazin-1-yl)-3-nitro-benzoylamino]-2-(naphthalene-2-sulfonylamino)-propionic acid tert-butyl ester

tert-butyl 1-{6-[[(dipyridin-2-ylmethyl)(pyridin-2-ylmethyl)amino]methyl]pyridin-3-yl}-11,11-dimethyl-1,9-dioxo-10-oxa-2,6,8-triazadodecan-7-ylidenecarbamate

methyl (3aS,3bS,9bS)-4-{3-[N-(tert-butoxycarbonyl)-N-[(tert-butoxycarbonylimino)(methylthio)methyl]amino]propyl}-1,5-bis(2,2,2-trichloroethoxycarbonyl)-2,3,3a,4,5,9b-hexahydro-4-(3-hydroxypropyl)-1H-pyrrolo[3,2-c]quinoline-8-carboxylate

tert-butyl (5-(5-methyl-4-(2-(methylthio)ethyl)oxazol-2-yl)-1,3-phenylene)bis(azanediyl)bis((tert-butoxycarbonylamino)methan-1-yl-1-ylidene)dicarbamate