英文别名METHYL (2R)-6-OXOPIPERAZINE-2-CARBOXYLATE; (2R)-6-OXO-2-PIPERAZINECARBOXYLIC ACID METHYL ESTER; 2-Piperazinecarboxylic acid, 6-oxo-, methyl ester, (2R)-; (R)-methyl 6-oxopiperazine-3-carboxylate; Methyl (R)-6-Oxopiperazine-2-carboxylate; (R)-6-Oxo-2-piperazinecarboxylic acid methyl ester; 2-Piperazinecarboxylicacid,6-oxo-,methylester,(2R)-(9CI) 
