Using CN1c2c(cc(O)cc2C(F)(F)F)C2CN(C(=O)OC(C)(C)C)CCC21, BrCc1ccccn1 to produce CN1c2c(cc(OCc3ccccn3)cc2C(F)(F)F)C2CNCCC21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.