Using CS(=O)(=O)N1CCCn2c(nc3c(N)nc4cc(OCc5ccccc5)ccc4c32)C1 to produce CS(=O)(=O)N1CCCn2c(nc3c(N)nc4cc(O)ccc4c32)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.