2-amino-7-(β-D-arabinofuranosyl)-4-chloro-7H-pyrrolo[2,3-d]pyrimidine

2-amino-7-[2-deoxy-2-fluoro-3,5-di-O-(tetrahydro-2-pyranyl)-β-D-ribofuranosyl]-4-chloro-7H-pyrrolo[2,3-d]pyrimidine

2-Amino-7-(2-deoxy-2-fluoro-β-D-ribofuranosyl)-4-chloro-7H-pyrrolo[2,3-d]-pyrimidine

2-amino-7-[2-deoxy-2-fluoro-β-D-arabinofuranosyl]-7H-pyrrolo[2,3-d]pyrimidin-4(3H)-one