Using COc1ccc(C2CCC=C2[N+](=O)[O-])c(OC)c1OC to produce COc1ccc(C2CCCC2[N+](=O)[O-])c(OC)c1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.