(2S)-2-[[4-[4-[[3-[2-[2-[2-[[2-[4,7-bis(carboxymethyl)-10-(2-hydroxyprop-2-enyl)-1,4,7,10-tetrazacyclododec-1-yl]acetyl]amino]ethoxy]ethoxy]ethoxy]propylamino]methyl]phenyl]phenyl]methylamino]-3-[[7-[(1H-imidazol-2-ylamino)methyl]-1-methyl-4-oxoquinoline-3-carbonyl]amino]propanoic acid;(3R)-4-[[(2R)-3-carboxy-1-[3-[3-[[4-[3-[3-[[2-carboxy-2-[(2,4,6-trimethylphenyl)sulfonylamino]ethyl]carbamoyl]-7-[(1H-imidazol-2-ylamino)methyl]-4-oxoquinolin-1-yl]propylamino]-4-oxobutanoyl]amino]propoxy]propylamino]-1-oxopropan-2-yl]amino]-4-oxo-3-[[2-[4,7,10-tris(carboxymethyl)-1,4,7,10-tetrazacyclododec-1-yl]acetyl]amino]butanoic acid;(2S)-3-[[7-[(1H-imidazol-2-ylamino)methyl]-1-methyl-4-oxoquinoline-3-carbonyl]amino]-2-[[4-[4-[[3-[2-[2-[2-[[2-[4,7,10-tris(carboxymethyl)-1,4,7,10-tetrazacyclododec-1-yl]acetyl]amino]ethoxy]ethoxy]ethoxy]propylamino]methyl]phenyl]phenyl]methylamino]propanoic acid