121055-65-0 AIDS-001180 AIDS001180 Acetamide, N-[1-[3-cyano-3-deoxy-2,5-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-.beta.-D-xylofuranosyl]-1,2-dihydro-2-oxo-4-pyrimidinyl]- Cytosine deriv. N4-Acetyl-1-[2,5-bis-O-(t-butyldimethylsilyl)-3-C-cyano-3-deoxy-.beta.-D-xylopentofuranosyl]cytosine