Using CC(C)(C)OC(=O)N1c2ccc(Br)cc2Sc2cc(Br)cc(F)c21, C1COCCN1 to produce CC(C)(C)OC(=O)N1c2ccc(Br)cc2Sc2cc(N3CCOCC3)cc(F)c21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.