Using CCOC(=O)CC1=NS(=O)(=O)c2cc(OCc3ccccc3)ccc2N1 to produce CCOC(=O)CC1=NS(=O)(=O)c2cc(O)ccc2N1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.