Using CN1CCN(c2ccc(B3OC(C)(C)C(C)(C)O3)cn2)CC1, OC1CCNc2ncc(Br)cc21 to produce CN1CCN(c2ccc(-c3cnc4c(c3)C(O)CCN4)cn2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.