Using COC(=O)c1ccc2cc(-c3ccc(C(=O)OC)c(C45CC6CC(CC(C6)C4)C5)c3)ccc2c1 to produce COC(=O)c1ccc(-c2ccc3cc(C(=O)O)ccc3c2)cc1C12CC3CC(CC(C3)C1)C2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.