55726-45-9 Cytosine, 1.beta.-D-arabinofuranosyl-N(sup 4)-palmitoyl- Hexadecanamide, N-(1-.beta.-D-arabinofuranosyl-1,2-dihydro-2-oxo-4-pyrimidinyl)- Hexadecanamide, N-(1.beta.-D-arabinofuranosyl-1,2-dihydro-2-oxo-4-pyrimidinyl)- NSC250684