Using CCOC(=O)N1CCc2c(oc3c(OC)ccc(C(=O)O)c23)C1, O=[N+]([O-])c1ccc(O)cc1 to produce CCOC(=O)N1CCc2c(oc3c(OC)ccc(C(=O)Oc4ccc([N+](=O)[O-])cc4)c23)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.