Using O=C1Cc2ccc(NC(=O)Nc3cccc([N+](=O)[O-])c3)cc2N1 to produce Nc1cccc(NC(=O)Nc2ccc3c(c2)NC(=O)C3)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.