Using O=C(C#Cc1ccc(C(=O)NC2CC2)c(Cl)c1)NC(c1cccc(C(F)(F)F)c1)C(F)(F)F to produce O=C(/C=C\c1ccc(C(=O)NC2CC2)c(Cl)c1)NC(c1cccc(C(F)(F)F)c1)C(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.