Using Nc1nnc(Cc2ccccc2Cl)o1, O=C(O)C1(c2ccc3c(c2)OCO3)CC1 to produce O=C(Nc1nnc(Cc2ccccc2Cl)o1)C1(c2ccc3c(c2)OCO3)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.