5,7-Etheno-1H,5H-cyclopropa[d][1,2,4]triazolo[1,2-a]pyridazine-6-carbonitrile, 2,3,5a,6,6a,7-hexahydro-1,3-dioxo-2-phenyl- 72012-63-6 AIDS-129408 AIDS129408 NSC345729