Using COP(=O)(CC(=O)OC(C)(C)C)OC, CCC(C)C1=C[C@@H]2C(=O)C[C@@H]2C1 to produce CCC(C)C1=C[C@@H]2C(=CC(=O)OC(C)(C)C)C[C@@H]2C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.