159850-75-6 3-Benzoyl-5-(4-chlorophenyl)isoxazolo(4,3-d)pyrimidin-7(6H)-one 3-Benzoyl-5-(p-chlorophenyl)-6,7-dihydroisoxazolo(4,3-d)pyrimidin-7-one Isoxazolo(4,3-d)pyrimidin-7(6H)-one, 3-benzoyl-5-(4-chlorophenyl)-