Using O=C(NCCCC#Cc1c(Cl)ccc2c1CCN(C(=O)C(F)(F)F)CC2)C1CCCC1 to produce O=C(NCCCC=Cc1c(Cl)ccc2c1CCN(C(=O)C(F)(F)F)CC2)C1CCCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.