Using CCCc1cnc2c(c1)C(=O)N(C(C)(C(N)=O)C(C)C)C2=O to produce CCCc1cnc2c(c1)C(=O)N1C2=NC(=O)C1(C)C(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.