159850-71-2 3-Benzoyl-6,7-dihydroisoxazolo(4,3-d)pyrimidine-7-one 3-Benzoylisoxazolo(4,3-d)pyrimidin-7(6H)-one Isoxazolo(4,3-d)pyrimidin-7(6H)-one, 3-benzoyl-