Using CCCCCCCCC(O)/C=C/c1cccc(C(=O)c2cc(C(=O)OC)cc(C(=O)OC)c2)n1 to produce CCCCCCCCC(O)/C=C/c1cccc(C(=O)c2cc(C(=O)O)cc(C(=O)O)c2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.