Abstract
| - The preparation of 4-deazaformycin A has beenachieved. The synthesis features the condensation of asuitably substituted, lithiated 4-picoline with 2,3,5-tri-O-benzyl-d-ribonolactone, dehydration of the resulting hemiacetal, and ionic hydrogenation, followed by manipulationof the protecting groups and subsequent ring closure withthe formation of 7-amino-3-(β-d-ribofuranosyl)pyrazolo[3,4-c]pyridine.
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