Using N=C(N)N, CCOC(=O)c1nn(C)c2c1CCC/C(=C\N(C)C)C2=O to produce CCOC(=O)c1nn(C)c2c1CCCc1cnc(N)nc1-2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.