Using COc1ccc(N)cc1, O=C1c2cccc([N+](=O)[O-])c2C(=O)c2c1cccc2[N+](=O)[O-] to produce COc1ccc(Nc2cccc3c2C(=O)c2c(cccc2[N+](=O)[O-])C3=O)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.