Using CC(C)(C)OC(=O)N1CCNC(=O)CC1, CON(C)C(=O)CCCBr to produce CON(C)C(=O)CCN1CCN(C(=O)OC(C)(C)C)CCC1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.