Using COC(=O)/C=C/c1cccc(NC(=O)/C=C/c2ccc3c(c2)OCO3)c1 to produce O=C(O)/C=C/c1cccc(NC(=O)/C=C/c2ccc3c(c2)OCO3)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.