Using CC(=O)OC(C)=O, COCOc1ccc(C=CC(=O)c2c(OCOC)cc(OCOC)c(CC=C(C)C)c2O)cc1 to produce COCOc1ccc(C=CC(=O)c2c(OCOC)cc(OCOC)c(CC=C(C)C)c2OC(C)=O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.