BARALDI, P. G.;GUARNERI, M.;MORODER, F.;SIMONI, D.;BENETTI, S., SYNTHESIS, BRD, 1981, N 9, 727-729
作者:BARALDI, P. G.、GUARNERI, M.、MORODER, F.、SIMONI, D.、BENETTI, S.
DOI:——
日期:——
Pyrazolo[4,3-d]pyrimidine nucleosides. Synthesis and antiviral activity of 1-.beta.-D-ribofuranosyl-3-methyl-6-substituted-7H-pyrazolo[4,3-d]pyrimidin-7-ones
作者:Pier Giovanni Baraldi、Daniele Simoni、Vittorio Periotto、Stefano Manfredini、Mario Guarneri、Roberto Manservigi、Enzo Cassai
DOI:10.1021/jm00374a009
日期:1984.8
N1 analogues of formycin B, with substituents at the 3 and 6 positions of the pyrazolo[4,3-d]pyrimidine moiety were synthesized by the direct SnCl4-catalyzed ribosylation method. The site of the glycosidic linkage and the anomeric configurations were established on the basis of X-ray crystallography, as well as 1H and 13C nuclear magnetic resonance spectroscopy. Preliminary results of the antiviral