Using C[N+](=O)[O-], COc1cc(C=O)c2c(c1OC)CCC2 to produce COc1cc(C=C[N+](=O)[O-])c2c(c1OC)CCC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.