Using CCC(OC)c1nc(-c2ccccc2)c(-c2ccccc2)c(O)c1C(=O)Nc1nccs1 to produce CCC(O)c1nc(-c2ccccc2)c(-c2ccccc2)c(O)c1C(=O)Nc1nccs1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.