title: Synthesis and antiviral studies of unsaturated analogues of isomeric dideoxynucleosides.
abstract: Novel isomeric dideoxynucleosides with unsaturation in the carbohydrate moiety have been synthesized. For example, isod4A was synthesized through a rearrangement reaction involving a cyclonucleoside. Support for the structures of both purine and pyrimidine d4 compounds came from UV, NMR, HRMS and single crystal X-ray data. Interestingly, the single crystal X-ray data for isod4C shows that the base is almost orthogonal to the carbon-carbon double bond of the sugar moiety. Consistent with this is the observation that the UV data of this compound does not show a bathochromic shift compared to the saturated compound implying that the pi-bond is not in conjugation with the pyrimidine base.
authors.affiliation: Department of Chemistry, University of Iowa, Iowa City 52242, USA.
authors.forename: S
authors.initials: S
authors.lastname: Bera
authors.forename: T
authors.initials: T
authors.lastname: Mickle
authors.forename: V
authors.initials: V
authors.lastname: Nair
mesh_terms: D019380:Anti-HIV Agents / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology; D000998:Antiviral Agents / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D002460:Cell Line; D018360:Crystallography, X-Ray; D015224:Dideoxynucleosides / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D015497:HIV-1 / Q000187:drug effects; D006801:Humans; D007536:Isomerism; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D013056:Spectrophotometry, Ultraviolet; D013329:Structure-Activity Relationship
chemical_list: D019380:Anti-HIV Agents; D000998:Antiviral Agents; D015224:Dideoxynucleosides