Using COC(=O)Cc1ccc(OCc2ccc3ccccc3n2)c(-n2cccc2)c1 to produce O=C(O)Cc1ccc(OCc2ccc3ccccc3n2)c(-n2cccc2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.