Using O=C1Cc2cc(C(=O)c3cccc([N+](=O)[O-])c3)ccc2N1 to produce Nc1cccc(Cc2ccc3c(c2)CC(=O)N3)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.