Using O=C1N(C(c2ccccc2)c2ccccc2)c2ccccc2C12COc1c(Cl)cc3c(c12)OCCO3 to produce O=C1Nc2ccccc2C12COc1ccc3c(c12)OCCO3, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.