N-Oxalylglycine

N-Oxalylglycine is the organic compound with the formula HO2CC(O)NHCH2CO2H. This colourless solid is used as an inhibitor of α-ketoglutarate-dependent enzymes. It is isosteric with α-ketoglutaric acid. Such enzymes are pervasive and, for example, are required for the synthesis of 4-hydroxyproline.