(2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)boronic acid InChI=1/C4H5BN2O4/c8-3-2(5(10)11)1-6-4(9)7-3/h1,10-11H,(H2,6,7,8,9 boronic acid, (1,2,3,4-tetrahydro-2,4-dioxo-5-pyrimidinyl)-