Using CCOC(=O)CCc1nnc2c(=O)[nH]c3cc([N+](=O)[O-])ccc3n12 to produce O=C(O)CCc1nnc2c(=O)[nH]c3cc([N+](=O)[O-])ccc3n12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.