Using N=C(N)N(CCCCCC(=O)O)c1ccc(O)cc1 to produce CCCCCCCCCC[N-]C(=O)CCCCCN(C(=N)N)c1ccc(O)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.