Using CCOC(=O)c1cn(Cc2ccccc2-c2ccccc2)c2cccnc2c1=O to produce O=C(O)c1cn(Cc2ccccc2-c2ccccc2)c2cccnc2c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.