Using O=C(Cc1ccc(Br)cc1)Nc1cc(C2CC2)[nH]n1, OB(O)c1ccccc1 to produce O=C(Cc1ccc(-c2ccccc2)cc1)Nc1cc(C2CC2)n[nH]1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.