(2S,3S,4R,5R)-2-Hydroxymethyl-5-(3-phenyl-4-phenylamino-pyrazolo[3,4-d]pyrimidin-1-yl)-tetrahydro-furan-3,4-diol

4-amino-3-bromo-1-(5-amino-5-deoxy-2,3-O-isopropylidene-α-L-lyxofuranosyl)pyrazolo[3,4-d]pyrimidine

3-bromo-4-N-trimethylacetylamino-1-(2,3-O-isopropylidene-α-L-lyxofuranosyl)pyrazolo[3,4-d]pyrimidine

9-(5-amino-5-deoxy-2,3-O-isopropylidene-α-L-lyxofuranosyl)adenine