Using CCOC(=O)C(=O)C1CN(C(C)=O)c2ccc([N+](=O)[O-])cc2C1=O, NNc1ccc2c(c1)OCO2 to produce CCOC(=O)c1nn(-c2ccc3c(c2)OCO3)c2c1CN(C(C)=O)c1ccc([N+](=O)[O-])cc1-2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.