Using C[C@@H](O)CCC1OCCOC1CCC/C=C/c1cc(OCc2ccccc2)cc(OCc2ccccc2)c1C(=O)O to produce C[C@@H](O)CCCC(=O)CCC/C=C/c1cc(OCc2ccccc2)cc(OCc2ccccc2)c1C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.