Using Cc1cc(Oc2ccc(Nc3cc(-c4ccc(O)cc4)nc(N)n3)cc2)ccn1, BrCCBr to produce Cc1cc(Oc2ccc(Nc3cc(-c4ccc(OCCBr)cc4)nc(N)n3)cc2)ccn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.