Using CCOC(=O)CC1CCCCc2nc(C(C)(C)C)n(Cc3ccc(Cl)cc3)c21 to produce CC(C)(C)c1nc2c(n1Cc1ccc(Cl)cc1)C(CC(=O)O)CCCC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.