Using CC(C)(C)OC(=O)N1CC(C=O)C1, COc1ccc(Br)cc1 to produce COc1ccc(C(O)C2CN(C(=O)OC(C)(C)C)C2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.