Using COC(=O)c1ccc(C=O)cc1, CC(=O)c1ccc2c(c1)C(C)(C)CCC2(C)C to produce COC(=O)c1ccc(C=CC(=O)c2ccc3c(c2)C(C)(C)CCC3(C)C)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.