Using O=C1NN(C(=O)Nc2ccc([N+](=O)[O-])cc2)C(c2ccccc2)C1c1ccccc1 to produce Nc1ccc(NC(=O)N2NC(=O)C(c3ccccc3)C2c2ccccc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.