Gadolinium 3,6,9-tris(carboxymethyl)-11-oxo-3,6,9,12-tetraazatridecanoate

3-[2-[2-[2-[2-[2-[2-(2-aminoethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]-N-[2-(2,6-dioxo-3-piperidyl)-1-oxo-isoindolin-4-yl]propanamide

(2S,4R)-1-[(2S)-2-[[2-[2-[2-(2-chloroethoxy)ethoxy]ethoxy]acetyl]amino]-3,3-dimethyl-butanoyl]-4-hydroxy-N-[[4-(4-methylthiazol-5-yl)phenyl]methyl]pyrrolidine-2-carboxamide

(2S,4R)-4-hydroxy-1-[(2S)-2-(6-iodohexylamino)-3,3-dimethyl-butanoyl]-N-[[4-(4-methylthiazol-5-yl)phenyl]methyl]pyrrolidine-2-carboxamide

(2R,4S)-1-[(2S)-2-(12-aminododecanoylamino)-3,3-dimethyl-butanoyl]-4-hydroxy-N-[(1S)-1-[4-(4-methylthiazol-5-yl)phenyl]ethyl]pyrrolidine-2-carboxamide

(2S,4R)-1-[(2S)-2-(13-aminotridecanoylamino)-3,3-dimethyl-butanoyl]-4-hydroxy-N-[[4-(4-methylthiazol-5-yl)phenyl]methyl]pyrrolidine-2-carboxamide

11-[[(1S)-1-[(2S,4R)-4-hydroxy-2-[[(1S)-1-[4-(4-methylthiazol-5-yl)phenyl]ethyl]carbamoyl]pyrrolidine-1-carbonyl]-2,2-dimethyl-propyl]amino]-11-oxo-undecanoic acid

tert-butyl 7-[[(1S)-1-[(2S,4R)-4-hydroxy-2-[[(1S)-1-[4-(4-methylthiazol-5-yl)phenyl]ethyl]carbamoyl]pyrrolidine-1-carbonyl]-2,2-dimethyl-propyl]amino]-7-oxo-heptanoate

methyl 10-[[(1S)-1-[(2S,4R)-4-hydroxy-2-[[(1S)-1-[4-(4-methylthiazol-5-yl)phenyl]ethyl]carbamoyl]pyrrolidine-1-carbonyl]-2,2-dimethyl-propyl]amino]-10-oxo-decanoate

tert-butyl 8-[[(1S)-1-[(2S,4R)-4-hydroxy-2-[[4-(4-methylthiazol-5-yl)phenyl]methylcarbamoyl]pyrrolidine-1-carbonyl]-2,2-dimethyl-propyl]amino]-8-oxo-octanoate

(2S,4R)-1-[(2S)-2-(4-aminobutanoylamino)-3,3-dimethyl-butanoyl]-4-hydroxy-N-[(1S)-1-[4-(4-methylthiazol-5-yl)phenyl]ethyl]pyrrolidine-2-carboxamide;2,2,2-trifluoroacetic acid