2-{[1-(2-Cyclopropylethyl)-6-fluoro-4-hydroxy-2-oxo-1,2-dihydroquinolin-3-yl]-dioxo-1,4-dihydrobenzo[1,2,4]thiadiazin-7-yloxy}-H-dimethylcarbamoylmethylacetamide AIDS-221847 AIDS221847