Using CCO, COc1cc(NC(=O)c2sc(Br)cc2[N+](=O)[O-])ccc1OCCN1CCCC1 to produce COc1cc(-n2cnc3cc(Br)sc3c2=O)ccc1OCCN1CCCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.