(1S)-2-[(2S)-2-({(2S)-2-cyclohexyl-2-[(pyrazin-2-ylcarbonyl)amino]acetyl}amino)-3,3-dimethylbutanoyl]-N-[1-(cyclopropylamino)-1,2-dioxohexan-3-yl]octahydrocyclopenta[c]pyrrole-1-carboxamide (non-preferred name)

(1S)-2-[(2S)-2-({(2S)-2-Cyclohexyl-2-[(2-pyrazinylcarbonyl)amino]acetyl}amino)-3,3-dimethylbutanoyl]-N-[1-(cyclopropylamino)-1,2-dioxo-3-hexanyl]octahydrocyclopenta[c]pyrrol-1-carboxamid (non-preferre d name)

(1S)-2-[(2S)-2-({(2S)-2-Cyclohexyl-2-[(2-pyrazinylcarbonyl)amino]acetyl}amino)-3,3-dimethylbutanoyl]-N-[1-(cyclopropylamino)-1,2-dioxo-3-hexanyl]octahydrocyclopenta[c]pyrrole-1-carboxamide (non-prefer red name)

(1S)-2-[(2S)-2-({(2S)-2-Cyclohexyl-2-[(2-pyrazinylcarbonyl)amino]acétyl}amino)-3,3-diméthylbutanoyl]-N-[1-(cyclopropylamino)-1,2-dioxo-3-hexanyl]octahydrocyclopenta[c]pyrrole-1-carboxamide (non-prefer red name)

(1S)-2-[(2S)-2-({(2S)-2-cyclohexyl-2-[(pyrazin-2-ylcarbonyl)amino]acetyl}amino)-3,3-dimethylbutanoyl]-N-[1-(cyclopropylamino)-1,2-dioxohexan-3-yl]octahydrocyclopenta[c]pyrrole-1-carboxamide (non-preferred name)

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