Pyrazolopyrimidine nucleosides. V. Methylation of the C-nucleoside antibiotic formycin and structural elucidation of products by magnetic circular dichroism …
LB Townsend, RA Long, JP McGraw…
文献索引:Townsend,L.B. et al. Journal of Organic Chemistry, 1974 , vol. 39, p. 2023 - 2027
The antibiotics formycin and formycin B were isolated3 from Norcardia interforma and f~ und~-~ to be C-nucleosides which were isomeric with the naturally occurring nucleosides adenosine and inosine, respectively. These antibiotics are of considerable interest since they are C-nucleosides and belong to the same class of compounds as~ howdomycin,~ pseudouridine, 8 and pyra~ omycin.~ Formycin has demonstrated inhibition of Ehrlich ...