2,4-Dimethoxypyrimidine-5-boronic acid5-Borono-2,3-dimethoxypyrimidine2,4-二甲氧基嘧啶-5-硼酸2,4-dimethoxy-5-Pyrimidineboronic acid(2,4-Dimethoxypyrimidin-5-yl)boronic acid2,4-二甲氧基-5-嘧啶硼酸2,4-Dimethoxypyrimidine-5-boronic acid(2,6-Dimethoxypyrimidin-5-yl)boronic acid2,4-Dimethoxy-5-pyrimidinylboronic acid