Using [I-], COc1ccc(-n2nc(COS(C)(=O)=O)cc2-c2ccc(Cl)c(Cl)c2)cc1 to produce COc1ccc(-n2nc(CI)cc2-c2ccc(Cl)c(Cl)c2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.