1-[5-Hydroxyindolyl-2-carbonyl]-4-[4-(1,1-dimethylethylamino)-3-pyridazinyl]piperazine 1H-Indol-5-ol, 2-[[4-[4-[(1,1-dimethylethyl)amino]-3-pyridazinyl]-1-piperazinyl]carbonyl]- AIDS-112492 AIDS112492