Using COc1ccc(CNCc2cc3cccc(C)c3nc2-c2ccccc2C(F)(F)F)cc1 to produce Cc1cccc2cc(CN)c(-c3ccccc3C(F)(F)F)nc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.