Using CC(C)(C)OC(=O)NCCCN1C(=O)CC[C@@H]1CN=[N+]=[N-] to produce CC(C)(C)OC(=O)NCCCN1C(=O)CC[C@@H]1CN, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.