2-Phenyl-5H-benzofuro(3,2-d)-1,3,4-thiadiazolo(3,2-a)pyrimidin-5-one 5H-Benzofuro(3,2-d)-1,3,4-thiadiazolo(3,2-a)pyrimidin-5-one, 2-phenyl- 88753-84-8