Using CCOC(=O)CC1CCCc2nc(C(C)C)n(Cc3ccc(Cl)c(Cl)c3)c21 to produce CC(C)c1nc2c(n1Cc1ccc(Cl)c(Cl)c1)C(CC(=O)O)CCC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.