Using CC(C)Cc1cc(-c2cccc(CBr)c2)c(S(=O)(=O)NC(C)(C)C)s1, O=C1CCC(=O)N1 to produce CC(C)Cc1cc(-c2cccc(CN3C(=O)CCC3=O)c2)c(S(=O)(=O)NC(C)(C)C)s1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.