Using O=C(COC1CCN(c2nc3ccc(O)cc3o2)CC1)N1CCOCC1, BrCC1CC1 to produce O=C(COC1CCN(c2nc3ccc(OCC4CC4)cc3o2)CC1)N1CCOCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.