Using COc1ccc(C2CC(OC(C)=O)CCC2[N+](=O)[O-])cc1OC to produce COc1ccc(C2CC(OC(C)=O)CCC2N)cc1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.