(2S)-2-acetamido-N-[(2R)-1-[(2S,4S)-2-[3-(diaminomethylideneamino)propyl]-4-(naphthalen-2-ylmethoxy)pyrrolidin-1-yl]-1-oxo-3-phenylpropan-2-yl]-3-(3H-imidazol-4-yl)propanamide
(2S)-2-acetamido-N-[(1R)-2-[(2S,4S)-2-(3-guanidinopropyl)-4-(2-naphthylmethoxy)pyrrolidin-1-yl]-2-oxo-1-(phenylmethyl)ethyl]-3-(3H-imidazol-4-yl)propanamide
(2S)-2-acetamido-N-[(1R)-2-[(2S,4S)-2-(3-guanidinopropyl)-4-(2-naphthylmethoxy)-1-pyrrolidinyl]-2-oxo-1-(phenylmethyl)ethyl]-3-(3H-imidazol-4-yl)propanamide
(2S)-2-acetamido-N-[(1R)-1-(benzyl)-2-[(2S,4S)-2-(3-guanidinopropyl)-4-(2-naphthylmethoxy)pyrrolidin-1-yl]-2-keto-ethyl]-3-(3H-imidazol-4-yl)propionamide
(2S)-2-acetamido-N-[(2R)-1-[(2S,4S)-2-[3-(diaminomethylideneamino)propyl]-4-(naphthalen-2-ylmethoxy)pyrrolidin-1-yl]-1-oxo-3-phenyl-propan-2-yl]-3-(3H-imidazol-4-yl)propanamide