Using BrBr, Cc1[nH]ncc1-c1cc2c(s1)C(=O)NC(C)(C)N2 to produce Cc1[nH]ncc1-c1sc2c(c1Br)NC(C)(C)NC2=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.