2-Pyridinyl(7-(4-pyridinyl)pyrazolo(1,5-a)pyrimidin-3-yl)methanone 96604-21-6 CL 273547 Methanone, 2-pyri(dinyl(7-(4-pyridinyl)pyrazolo(1,5-a)pyrimidin-3-yl)-; Ocinaplon Ocinaplon [USAN:INN]