Using O=C1COC2(CCNCC2)CN1C1CC1, COC(=O)C(Br)c1ccc(Br)cc1F to produce COC(=O)C(c1ccc(Br)cc1F)N1CCC2(CC1)CN(C1CC1)C(=O)CO2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.