(1S)-N-[1-(Cyclopropylamino)-1,2-dioxo-3-hexanyl]-2-[(2S)-2-({(2S)-4,4-dimethyl-2-[(2-pyrazinylcarbonyl)amino]pentanoyl}amino)-3,3-dimethylbutanoyl]octahydrocyclopenta[c]pyrrole-1-carboxamide (non-pre ferred name)

(1S)-N-[1-(Cyclopropylamino)-1,2-dioxo-3-hexanyl]-2-[(2S)-2-({(2S)-4,4-dimethyl-2-[(2-pyrazinylcarbonyl)amino]pentanoyl}amino)-3,3-dimethylbutanoyl]octahydrocyclopenta[c]pyrrol-1-carboxamid (non-prefe rred name)

(1S)-N-[1-(Cyclopropylamino)-1,2-dioxo-3-hexanyl]-2-[(2S)-2-({(2S)-4,4-dimethyl-2-[(2-pyrazinylcarbonyl)amino]pentanoyl}amino)-3,3-dimethylbutanoyl]octahydrocyclopenta[c]pyrrole-1-carboxamide (non-pre ferred name)

(1S)-N-[1-(Cyclopropylamino)-1,2-dioxo-3-hexanyl]-2-[(2S)-2-({(2S)-4,4-diméthyl-2-[(2-pyrazinylcarbonyl)amino]pentanoyl}amino)-3,3-diméthylbutanoyl]octahydrocyclopenta[c]pyrrole-1-carboxamide (non-pre ferred name)

2-(2-{4,4-Dimethyl-2-[(pyrazine-2-carbonyl)-amino]-pentanoylamino}-3,3-dimethyl-butyryl)-octahydro-cyclopenta[c]pyrrole-1-carboxylic acid (1-cyclopropylaminooxalyl-butyl)-amide