Using CCCCCCC(C)(O)CCN, CCOC(=O)C(Br)CCCCCCCOC1CCCCO1 to produce CCCCCCC(C)(O)CCNC(CCCCCCCOC1CCCCO1)C(=O)OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.