Using COC(=O)c1cccc(NC(=O)OC(C)(C)C)c1, BrCc1ccccc1 to produce COC(=O)c1cccc(N(Cc2ccccc2)C(=O)OC(C)(C)C)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.