Using Cc1oc(-c2ccc(Br)cc2)nc1CCN1CCCCC1C, OB(O)c1ccncc1 to produce Cc1oc(-c2ccc(-c3ccncc3)cc2)nc1CCN1CCCCC1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.