2,5-Methano-8H,12H-cyclopenta[d][1,2,4]triazolo[1,2-a]indazole-8,10(9H)-dione, octahydro-9,12-dimethyl-12-tricyclo[3.3.1.13,7]dec-1-yl- AIDS-151276 AIDS151276 NSC691118