Oxidation of 2-amino-9-beta-D-ribofuranosylpurine-6-sulfenamide to the corresponding 6-sulfonamide facilitates changes in biologic characterization that include activity against thiopurine-refractory experimental leukemia.

Abstract

Preclinical investigations in vivo revealed unexpected differences in the biological characteristics of 2-amino-9-beta-D-ribofuranosylpurine-6-sulfenamide (sulfenosine, 1) and 2-amino-9-beta-D-ribofuranosylpurine-6-sulfonamide (sulfonosine, 2), two novel but structurally related derivatives of 6-thioguanosine (6TGR). Strikingly, the addition of a fully… (More)

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