Using COc1ccc(C(O)CCCCC(=O)O)cc1, Cc1cc(O)c(C)c(C)c1O to produce COc1ccc(C(CCCCC(=O)O)C2=C(C)C(=O)C(C)=C(C)C2=O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.