title: Pyrido(2,3-d)pyrimidines. 3. Synthesis of some 8-( -D-ribofuranosyl)pyrido(2,3-d)pyrimidines structurally related to the antibiotic sangivamycin.
mesh_terms: D000903:Antibiotics, Antineoplastic / Q000138:chemical synthesis*; D003500:Cyclization; D008956:Models, Chemical; D011725:Pyridines / Q000138:chemical synthesis; D011743:Pyrimidines / Q000138:chemical synthesis; D011758:Pyrroles / Q000138:chemical synthesis; D012263:Ribonucleosides / Q000138:chemical synthesis*; D013329:Structure-Activity Relationship
chemical_list: D000903:Antibiotics, Antineoplastic; D011725:Pyridines; D011743:Pyrimidines; D011758:Pyrroles; D012263:Ribonucleosides