Using CCOC(=O)c1cc(-n2c(=O)[nH]c3c(c2=O)CCC3)ccc1[N+](=O)[O-], CC[O-] to produce CCOC(=O)c1cc(-n2c(=O)c3c(n(C)c2=O)CCC3)ccc1[N+](=O)[O-], please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.