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2-Chloro-6-methoxy-9-beta-D-(2-C-methyl ribofuranosyl)purine

2-Amino-6-methythio-9-(beta-D-ribofuranosyl)-9H-purine; 6-S-Methyl-6-thio-guanosine

6-S-Allyl-6-thio-guanosine

2-Methylamino-N6-methyladenosine

2-(N,N-Dimethylamino)-N6,N6-dimethyladenosine

N2-Ethylguanosine

2-Cyanomethylthioadenosine

2-Benzylthioadenosine

2-(4-Methylbenzyl)thioadenosine

2-(2,4-Dichlorobenzyl)thioadenosine