(E)-1-(3-Chlorophenyl)-5-(2-(3-pyridyl)ethenyl)-1H,7H-pyrazolo(1,5-a)pyrimidin-7-one (E)-1-(3-Clorofenil)-5-(2-(3-piridil)etenil)-1H,7H-pirazolo(1,5-a)pirimidin-7-oni [Italian] 1H,7H-Pyrazolo(1,5-a)pyrimidin-7-one, 1-(3-chlorophenyl)-5-(2-(3-pyridyl)ethenyl)-, (E)- 88569-98-6 Pyrazolo(1,5-a)pyrimidin-7(1H)-one, 1-(3-chlorophenyl)-5-(2-(3-pyridinyl)ethenyl)-, (E)-