(+/-)-2-Amino-3,4-dihydro-7-[2,3-dihydroxy-4-(hydroxymethyl)-1- cyclopentyl]-7H-pyrrolo[2,3-d]pyrimidin-4-ones: new carbocyclic analogues of 7-deazaguanosine with antiviral activity.
5-Allyl-2-amino-4,6-dihydroxypyrimidine (3) was chlorinated and ozonized to yield (2-amino-4,6-dichloro-pyrimidin-5-yl)acetaldehyde (5). Acetalization of 5 with ethanol afforded a new pyrimidine intermediate 6 which can lead to 2-amino-3,4-dihydro-7-alkyl-7H-pyrrolo[2,3-d]pyrimidin-4-ones and therefore to carbocyclic analogues of 7-deazaguanosine. The 7-substituent was a cyclopentyl analogue of the arabinofuranosyl moiety in 10a, lyxofuranosyl moiety in 10b, and ribofuranosyl moiety in 10c. Compounds 10a and 10b exhibited selective inhibitory activities against the multiplication of HSV1 and HSV2 in cell culture. Repeated administration of compound 10a at 10mg/kg ip to mice infected with HSV2 increased the number of survivors and lengthened significantly the mean survival time.
D000818:Animals; D000998:Antiviral Agents / Q000138:chemical synthesis; D055598:Chemical Phenomena; D002621:Chemistry; D004267:DNA Viruses / Q000187:drug effects; D006561:Herpes Simplex / Q000188:drug therapy; D051379:Mice; D011744:Pyrimidinones / Q000138:chemical synthesis / Q000494:pharmacology*; D011758:Pyrroles / Q000138:chemical synthesis / Q000494:pharmacology*; D012328:RNA Viruses / Q000187:drug effects; D018139:Simplexvirus / Q000187:drug effects; D013329:Structure-Activity Relationship; D014779:Virus Replication / Q000187:drug effects
D000998:Antiviral Agents; D011744:Pyrimidinones; D011758:Pyrroles