Using CCCCON=O, Cc1cccc(CC(=O)c2ccc3c(c2)n(C)c(=O)n3C2CCCC2)c1 to produce Cc1cccc(C(=NO)C(=O)c2ccc3c(c2)n(C)c(=O)n3C2CCCC2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.