Using CCON, Cc1ccc(C)c(OCc2ccccc2C(=O)c2ccnn2C)c1 to produce CCON=C(c1ccccc1COc1cc(C)ccc1C)c1ccnn1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.