Using O=C([O-])O, CCOC(=O)c1ccc(C2=Nc3ccccc3Oc3ccccc32)cc1 to produce CCOC(=O)c1ccc(C2c3ccccc3Oc3ccccc3N2C)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.