Using O=C1CCN(C(=O)/C=C/c2cccc(Cl)c2)CCN1, CCOC(CBr)OCC to produce CCOC(CN1CCN(C(=O)/C=C/c2cccc(Cl)c2)CCC1=O)OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.