Using CCOP(=O)(Cn1c(=O)c(=O)[nH]c2cc([N+](=O)[O-])c3ccccc3c21)OCC to produce CCOP(=O)(Cn1c(=O)c(=O)[nH]c2cc(N)c3ccccc3c21)OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.