Synthesis and Antiviral (RNA) Evaluation of Nucleoside Analogs of Tiazofurin Modified at the Carboxamide Moiety
摘要:
The carboxamide functionality of tiazofurin la has been modified to produce the following analogs: carboximidates 5a,b, carboxamidines 6, 10, tetrahydropyrimidine 7, N-glycine 8 and N-glutamine 9. These structural modifications abolished the in vitro antiviral (RNA) activity exhibited by tiazofurin against the flaviviruses (yellow fever and Japanese encephalitis viruses), bunyavirus (Punta Toro virus) and togavirus (Venezuelan equine encephalomyelitis virus). Only carboximidates 5a,b retained marginal activity against bunyaviruses.
Synthesis and biological activity of nucleosides and nucleotides related to the antitumor agent 2-.beta.-D-ribofuranosylthiazole-4-carboxamide
作者:Prem C. Srivastava、Ganapathi R. Revankar、Roland K. Robins
DOI:10.1021/jm00369a006
日期:1984.3
intraperitoneally implanted murine leukemias in mice. Amidine 7 was slightly toxic to L1210 in culture and inhibitory to purine nucleoside phosphorolysis. The cyclic 3',5'-phosphate 5 was less effective than the corresponding 5'-phosphate 2 or the parent nucleoside 1 as an antitumor agent.
Synthesis and Antiviral (RNA) Evaluation of Nucleoside Analogs of Tiazofurin Modified at the Carboxamide Moiety
作者:Michael J. Phelan、Bjarne Gabrielsen、Jorma J. Kirsi、William M. Shannon、Michael A. Ussery、Louis Barthel-Rosa、Ernst M. Schubert、Ganesh D. Kini、Roland K. Robins
DOI:10.1080/15257779508010693
日期:1995.8
The carboxamide functionality of tiazofurin la has been modified to produce the following analogs: carboximidates 5a,b, carboxamidines 6, 10, tetrahydropyrimidine 7, N-glycine 8 and N-glutamine 9. These structural modifications abolished the in vitro antiviral (RNA) activity exhibited by tiazofurin against the flaviviruses (yellow fever and Japanese encephalitis viruses), bunyavirus (Punta Toro virus) and togavirus (Venezuelan equine encephalomyelitis virus). Only carboximidates 5a,b retained marginal activity against bunyaviruses.