Using NCCON, O=C(CCCN1CCC(n2c(=O)[nH]c3ccccc32)CC1)c1ccccc1 to produce NCCON=C(CCCN1CCC(n2c(=O)[nH]c3ccccc32)CC1)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.