Using NN1CCCCC1, O=C(O)c1cnc(-c2ccc(Br)cc2)c(-c2ccc(Br)cc2)n1 to produce O=C(NN1CCCCC1)c1cnc(-c2ccc(Br)cc2)c(-c2ccc(Br)cc2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.