Using O, N#CCC1Cc2ccc(Cl)nc2-c2cc3c(F)cccc3n21 to produce O=CCC1Cc2ccc(Cl)nc2-c2cc3c(F)cccc3n21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.