阿糖尿苷

2,6-二氨基嘌呤

3′,5′-(1,1,3,3-tetraisopropyl-1,3-disiloxan-1,3-yl)-9-(β-D-ribofuranosyl)purin-2,6-diamine

2-acetamido-6-chloro-9-(2,3,5-O-triacetyl-β-D-arabinofuranosyl)purine

2-acetamido-6-amino-9-(3,5-O-diacetyl-β-D-arabinofuranosyl)purine