Using O=C(Nc1cc(Cl)cnc1N1CCC(CCCO)CC1)c1cccc(Cl)c1, BrC(Br)(Br)Br to produce O=C(Nc1cc(Cl)cnc1N1CCC(CCCBr)CC1)c1cccc(Cl)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.