Using C=CCNC(=O)C(F)(F)F, O=C(N(CC1CCCCC1)c1cccc(Br)c1)C(F)(F)F to produce O=C(NC/C=C/c1cccc(N(CC2CCCCC2)C(=O)C(F)(F)F)c1)C(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.