Using Cn1c(Nc2ccc(O)cc2)nc2ccccc21, O=Cc1cccnc1Cl to produce Cn1c(Nc2ccc(Oc3ncccc3C=O)cc2)nc2ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.