Using CCOC(=O)c1c(C=C2CC2)c2ccccc2n1Cc1cccc(C(F)(F)F)c1 to produce O=C(O)c1c(C=C2CC2)c2ccccc2n1Cc1cccc(C(F)(F)F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.