Using Sc1c(Cl)cccc1Cl, CCOC(=O)c1cnc(CO)n1-c1ccc(F)cc1 to produce CCOC(=O)c1cnc(CSc2c(Cl)cccc2Cl)n1-c1ccc(F)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.