Using O=C(OCc1ccccc1)N(Cc1cc(C(F)(F)F)cc(C(F)(F)F)c1)c1ncc(O)cn1, CCOC(=O)CCCBr to produce CCOC(=O)CCCOc1cnc(N(Cc2cc(C(F)(F)F)cc(C(F)(F)F)c2)C(=O)OCc2ccccc2)nc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.