Using CON(C)C(=O)c1ccc(Br)cc1, Brc1ccc(N2CCOCC2)cc1 to produce O=C(c1ccc(Br)cc1)c1ccc(N2CCOCC2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.