Using C=CCO, COC(=O)/C=C/c1c[nH]c2ccc(OCc3ccccc3)cc12 to produce C=CCOC(=O)/C=C/c1c[nH]c2ccc(OCc3ccccc3)cc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.