7-(β-D-Arabinofuranosyl)-2,4-dimethoxy-7H-pyrrolo<2,3-d>pyrimidin

2-amino-7-β-D-arabinofuranosyl-4-methoxy-7H-pyrrolo<2,3-d>pyrimidine

2-amino-7-α-D-arabinofuranosyl-4-methoxy-7H-pyrrolo<2,3-d>pyrimidine

4-Amino-7-(2,3,5-tri-O-benzyl-α-D-arabinofuranosyl)pyrrolo<2,3-d>pyrimidin