title: Pyrazolopyrimidine nucleosides. V. Methylation of the C-nucleoside antibiotic formycin and structural elucidation of products by magnetic circular dichroism spectroscopy.
mesh_terms: D000903:Antibiotics, Antineoplastic / Q000138:chemical synthesis*; D002942:Circular Dichroism; D007536:Isomerism; D008745:Methylation; D011720:Pyrazoles / Q000138:chemical synthesis; D011743:Pyrimidines / Q000138:chemical synthesis; D011744:Pyrimidinones / Q000138:chemical synthesis; D012263:Ribonucleosides / Q000138:chemical synthesis*; D013056:Spectrophotometry, Ultraviolet
chemical_list: D000903:Antibiotics, Antineoplastic; D011720:Pyrazoles; D011743:Pyrimidines; D011744:Pyrimidinones; D012263:Ribonucleosides