Using O=C(c1ccc2nc(NC(=O)C(F)(F)F)c(-c3ccccc3)n2c1)c1cccc(F)c1F to produce CNC(=O)/C=C(\c1ccc2nc(NC(=O)C(F)(F)F)c(-c3ccccc3)n2c1)c1cccc(F)c1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.