2-(1-.beta.-D-Ribofuranosyl-5-aminoimidazol-4-yl)-4-pyrimidone 2-[5-Amino-1-((2R,3R,4S,5R)-3,4-dihydroxy-5-hydroxymethyl-tetrahydro-furan-2-yl)-1H-imidazol-4-yl]-1H-pyrimidin-4-one AIDS-004086 AIDS004086 NSC610583 TB8:RiboAmImadazolPyr