label: 4-{[(E)-amino(imino)methyl]amino}-N-({(2S)-1-[N-(2-naphthylsulfonyl)-L-seryl]pyrrolidin-2-yl}methyl)butanamide
label_lc: 4-{[(e)-amino(imino)methyl]amino}-n-({(2s)-1-[n-(2-naphthylsulfonyl)-l-seryl]pyrrolidin-2-yl}methyl)butanamide