Using CCOC(=O)C(c1ccc(Nc2cc(CC)nc(-c3cccc(Cl)c3)n2)cc1)C(F)(F)F to produce CCOC(=O)Cc1ccc(Nc2cc(CC)nc(-c3cccc(Cl)c3)n2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.