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General structures of aromatic (A) 6-benzylaminopurine-9-β-D-riboside derivatives (R1 = X, CH3, OCH3, OH, OCHF2, OCF3, CF3 or a combination of these groups), (B) 6-benzylaminopurine-9-β-L-riboside derivatives (R2 = H, F, Cl, OCH3 or OH) and (C) 6-benzylaminopurine-9-β-D-arabinoside derivatives (R3 = X, CH3, OCH3, OH, OCF3, CF3 or NH2).
