AIDS-142515 AIDS142515 Ethyl 4-((6-(hydroxy(oxido)amino)-2-thioxo-2,3-dihydro-1H-benzimidazol-1-yl)methylene)-5-oxo-1-phenyl-4,5-dihydro-3H-1.lambda.~5~-pyrazole-3-carboxylate NSC659723