Using Oc1cnc(Br)cn1, CC(C)OC(=O)N1CCC(COS(C)(=O)=O)CC1 to produce CC(C)OC(=O)N1CCC(COc2cnc(Br)cn2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.