Using O=C(c1ccc(Br)cn1)N1CCC(c2nc3ccccc3[nH]2)CC1, OB(O)c1ccccc1 to produce O=C(c1ccc(-c2ccccc2)cn1)N1CCC(c2nc3ccccc3[nH]2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.