Using CCOC(=O)COc1ccc(C=C2C(=O)Nc3ccccc32)c2cccnc12 to produce O=C([O-])COc1ccc(C=C2C(=O)Nc3ccccc32)c2cccnc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.