(S)-4-Bromo-2-(1,3-dioxo-1,3-dihydro-isoindol-2-yl)-5-oxo-pentanoic acid methyl ester

(S)-3-(2-Amino-thiazol-5-yl)-2-(1,3-dioxo-1,3-dihydro-isoindol-2-yl)-propionic acid methyl ester