Using CC(C)(C)OC(=O)N1CCC(O)(c2ccccc2)C1, COC(=O)CBr to produce COC(=O)COC1(c2ccccc2)CCN(C(=O)OC(C)(C)C)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.