{2-[(S)-2,5-Dioxo-3-(4,5,6,7-tetrabromo-1,3-dioxo-1,3-dihydro-isoindol-2-yl)-pyrrolidin-1-yl]-acetylamino}-acetic acid methyl ester
(S)-2-(2-{2-[(S)-2,5-Dioxo-3-(4,5,6,7-tetrabromo-1,3-dioxo-1,3-dihydro-isoindol-2-yl)-pyrrolidin-1-yl]-acetylamino}-acetylamino)-3-(4-hydroxy-phenyl)-propionic acid methyl ester