148680-50-6 2-Phenyl-3,3a-dihydro-4-oxo-5-(4-phenylpiperazin-1-yl)methylpyrazol(1,5-d)(1,2,4)triazine Pyrazolo(1,5-d)(1,2,4)triazin-4(5H)-one, 3,3a-dihydro-2-phenyl-5-((4-phenyl-1-piperazinyl)methyl)-