A new synthesis and an antiviral assessment of the 4′-fluoro derivative of 4′-deoxy-5′-noraristeromycin
摘要:
A synthetic route to (1S, 2S, 3R, 5S)-3-(6-amino-9H-purin-9-yl)-5-fluorocyclopentane-1,2-diol (that is, the 4'-fluoro derivative of 4'-deoxy-5'-noraristeromycin, 3) is described via a fluorinated cyclopentanol, which is in contrast to existing schemes where fluorination occurred once the purine ring was present. Compound 3 was assayed versus a number of viruses. A favorable response was observed towards measles (IC50 of 1.2 mu g/mL in the neutral red assay and 14 mu g/mL by the visual assay) but this was accompanied by cytotoxicity in the CV-1 host cells (21-36 mu g/mL). Among the viruses unaffected by 3 were human cytomegalovirus and the poxviruses (vaccinia and cowpox), which are three viruses that were inhibited by the 40,40-difluoro analog of 3 (that is, 2). (C) 2009 Elsevier Ltd. All rights reserved.
A new synthesis and an antiviral assessment of the 4′-fluoro derivative of 4′-deoxy-5′-noraristeromycin
摘要:
A synthetic route to (1S, 2S, 3R, 5S)-3-(6-amino-9H-purin-9-yl)-5-fluorocyclopentane-1,2-diol (that is, the 4'-fluoro derivative of 4'-deoxy-5'-noraristeromycin, 3) is described via a fluorinated cyclopentanol, which is in contrast to existing schemes where fluorination occurred once the purine ring was present. Compound 3 was assayed versus a number of viruses. A favorable response was observed towards measles (IC50 of 1.2 mu g/mL in the neutral red assay and 14 mu g/mL by the visual assay) but this was accompanied by cytotoxicity in the CV-1 host cells (21-36 mu g/mL). Among the viruses unaffected by 3 were human cytomegalovirus and the poxviruses (vaccinia and cowpox), which are three viruses that were inhibited by the 40,40-difluoro analog of 3 (that is, 2). (C) 2009 Elsevier Ltd. All rights reserved.