Using CCOC(C)=O, COC(=O)c1cc(S(=O)(=O)c2cc(Br)c(Nc3ccccc3)c([N+](=O)[O-])c2)c(SC)s1 to produce COC(=O)c1cc(S(=O)(=O)c2cc(Br)c3c(c2)ncn3-c2ccccc2)c(SC)s1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.