Using N=C(N)N, CCOC(=O)c1nn(C)c2c1CCC(=CN(C)C)C2=O to produce CCOC(=O)c1nn(C)c2c1ccc1cnc(N)nc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.