Using O=C([O-])[O-], COC(=O)c1[nH]c2c(C)ccc(C)c2c1C=NO to produce CON=Cc1c(C(=O)OC)[nH]c2c(C)ccc(C)c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.