Using COC(=O)c1c(CBr)cccc1[N+](=O)[O-], C1COCCN1 to produce COC(=O)c1c(CN2CCOCC2)cccc1[N+](=O)[O-], please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.