(4-{4-[(3-Carbamoyl-phenylcarbamoyl)-methyl]-6-chloro-5-methyl-3-oxo-3,4-dihydro-pyrazin-2-ylamino}-cyclohexyl)-carbamic acid tert-butyl ester

[3-(2-{5-Chloro-3-[4-(5-fluoro-benzoimidazol-1-yl)-piperidin-1-yl]-6-methyl-2-oxo-2H-pyrazin-1-yl}-acetylamino)-benzyl]-carbamic acid tert-butyl ester

3-(4-methoxybenzylamino)-6-methyl-1-carboxymethylpyrazinone