Using CON(C)C(C)=O, CC(C)(C)OC(=O)N1CCOC(c2ccc(Br)cc2)C1 to produce CC(=O)c1ccc(C2CN(C(=O)OC(C)(C)C)CCO2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.