115955-20-9 4,5-Dihydro-4-((1-piperazinyl)acetyl)-7-(3-(trifluoromethyl)phenyl)pyrazolo(1,5-a)pyrimidine-3-carbonitrile CL 286,527 CL 286527 Pyrazolo(1,5-a)pyrimidine-3-carbonitrile, 4,5-dihydro-4-(1-piperazinylacetyl)-7-(3-(trifluoromethyl)phenyl)-