Facile Synthesis of Pyrrolo[2,3-d]pyrimidine and Pyrrolo[3,2-c]pyridine 2',3'-Dideoxyribonucleosides via Nucleobase Anion Glycosylation with 2,3-Dideoxy-D-glycero-pentofuranosyl Chloride

Abstract
A facile synthesis of pyrrolo[2,3-d]pyrimidine and pyrrolo[3,2-c]pyridine 2'',3''-dideoxyribonucleosides employing a nucleobase anion and 2,3-dideoxy-D-glycero-pentofuranosyl chloride is described. The synthetic route allows large scale preparation of 2'',3''-dideoxytubercidin, 3, 7-dideaza-2'',3''-dideoxyadenosine and related base-modified 2'',3''-dideoxyribonucleosides not accessible by conventional glycosylation techniques.
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