Using CCCCCCCCC(O)/C=C/c1cccc(CC(O)c2cccc(C(=O)OC)c2)n1 to produce CCCCCCCCC(O)/C=C/c1cccc(CC(O)c2cccc(C(=O)O)c2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.