Using CCCN(CCC)c1cccc2nc(Nc3ccc(Cl)cc3O)n(C)c12, OCCCBr to produce CCCN(CCC)c1cccc2nc(Nc3ccc(Cl)cc3OCCCBr)n(C)c12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.