1-{4-[2-({[(3S,2R,4R,5R)-5-(2,4-Dioxo(1,3-dihydropyrimidinyl))-3,4-dihydroxyoxolan-2-yl]methyl}(hydroxyamino))ethyl](4S,5S,2R,3R)-3-hydroxy-5-(hydroxymethyl)oxolan-2-yl}-1,3-dihydropyrimidine-2,4-dione AIDS-153187 AIDS153187 NSC699336