Using Cc1sc(-c2ccccc2)nc1C(=O)OC(C)(C)C, O=C1CCC(=O)N1Br to produce CC(C)(C)OC(=O)c1nc(-c2ccccc2)sc1CBr, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.