Using O=C1CN(c2ccc(-c3ccn(COCc4ccccc4)n3)cc2OCc2ccccc2)S(=O)(=O)N1 to produce O=C1CN(c2ccc(-c3cc[nH]n3)cc2O)S(=O)(=O)N1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.