Using Cn1c(-c2ccc(O)cc2Cl)nnc1C(C)(C)Oc1c(F)cc(F)cc1F, NC(=O)CBr to produce Cn1c(-c2ccc(OCC(N)=O)cc2Cl)nnc1C(C)(C)Oc1c(F)cc(F)cc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.