Using Cc1cccc(C)c1C(=O)O, CC(C)(C)OC(=O)CC(NC(=O)OCc1ccccc1)C(=O)CBr to produce Cc1cccc(C)c1C(=O)OCC(=O)C(CC(=O)OC(C)(C)C)NC(=O)OCc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.