Using CC(C)(C)[O-], CC(C)(C)OC(=O)NCCSCc1csc(Br)n1 to produce CC(C)(C)OC(=O)NCCSCc1csc(SCCNC(=O)OC(C)(C)C)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.