Using Oc1ccc(Br)nc1F, CC(C)OC(=O)N1CCC(COS(C)(=O)=O)CC1 to produce CC(C)OC(=O)N1CCC(COc2ccc(Br)nc2F)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.