Using BrCc1ccccc1, COC(=O)c1cccn1NC(=O)OC(C)(C)C to produce COC(=O)c1cccn1N(Cc1ccccc1)C(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.