((2S,3R,4R,5R)-4-acetoxy-5-(6-(dimethylamino)-9H-purin-9-yl)-3-(2,2,2-trifluoroacetamido)tetrahydrofuran-2-yl)methyl pivalate

9-(3-azido-3-deoxy-β-D-ribofuranosyl)-6-(dimethylamino)purine

3'-benzylamino-N6,N6-dimethyl-3'-deoxy-adenosine

(3S,4S)-3-azido-1-pentyne-4,5-diol

2,2-Dimethyl-propionic acid (2S,3S)-3-amino-2-hydroxy-pent-4-ynyl ester