Using O=C(CCCCCNC(=O)C(F)(F)F)N1Cc2ccccc2C(Br)C(Br)c2ccccc21 to produce O=C(CCCCCNC(=O)C(F)(F)F)N1Cc2ccccc2C#Cc2ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.