Using O=C(O)CCCCCN1C(=O)c2cccc([N+](=O)[O-])c2C1=O, [N-]=[N+]=[N-] to produce [N-]=[N+]=Nc1cccc2c1C(=O)N(CCCCCC(=O)O)C2=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.