Using CCNC(=O)c1ccc(-n2cc(C(=O)OCC)nn2)c(OCC)c1 to produce CCNC(=O)c1ccc(-n2cc(C(=O)O)nn2)c(OCC)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.