(4S,5S,6S)-6-{(R)-1-Carbamoyl-1-[(2S,3S,4R,5R)-5-(2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-4-hydroxy-3-methoxy-tetrahydro-furan-2-yl]-methoxy}-4,5-dihydroxy-5,6-dihydro-4H-pyran-2-carboxylic acid (4-chloro-phenyl)-amide AIDS-189176 AIDS189176