Using CC(C)(C)OC(=O)NC1CCNCC1, O=C(NCCBr)OCc1ccccc1 to produce CC(C)(C)OC(=O)NC1CCN(CCNC(=O)OCc2ccccc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.