Using CCOC(=O)CN, CCOC(=O)c1c(O)c2ccccc2n(OCc2ccccc2)c1=O to produce CCOC(=O)CNC(=O)c1c(O)c2ccccc2n(OCc2ccccc2)c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.