Using Cc1c(-c2ccc3cc(NC(=O)C4CC4)ncc3c2)cnc(Cl)c1F to produce Cc1c(F)cncc1-c1ccc2cc(NC(=O)C3CC3)ncc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.