Efficient synthesis of α-purine nucleosides of 2-deoxyribofuranose and 2-deoxyribopyranose

Abstract
A high yield synthesis of α-purine nucleosides of 2-deoxyribofuranose and 2-deoxyribopyranose is reported starting from 1,3,5-tri-O-acetyl-2-deoxyribofuranose and 1,3,5,-tri-O-acetyl-2-deoxyribopyranose with silylated purines under Lewis acid (SnCl4) catalysed conditions.

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