Using CC(=O)O, CC(C)(C)C(=O)Nc1cnc(C(=O)CBr)cn1 to produce CC(=O)OCC(=O)c1cnc(NC(=O)C(C)(C)C)cn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.