Using Cc1[nH]cnc1C=C1CCc2[nH]c3c(F)cccc3c2C1=O to produce Cc1[nH]cnc1CC1CCc2[nH]c3c(F)cccc3c2C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.