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Pyrido (2,3-d) pyrimidines. II. Synthesis of ribonucleosides of 4-oxo- and 2,4-dioxopyrido (2,3-d) pyrimidines. 1972

B H Rizkalla, and A D Broom, and M G Stout, and R K Robins

UI MeSH Term Description Entries
D007659 Ketones Organic compounds containing a carbonyl group Ketone
D008722 Methods A series of steps taken in order to conduct research. Techniques,Methodological Studies,Methodological Study,Procedures,Studies, Methodological,Study, Methodological,Method,Procedure,Technique
D008745 Methylation Addition of methyl groups. In histo-chemistry methylation is used to esterify carboxyl groups and remove sulfate groups by treating tissue sections with hot methanol in the presence of hydrochloric acid. (From Stedman, 25th ed) Methylations
D008956 Models, Chemical Theoretical representations that simulate the behavior or activity of chemical processes or phenomena; includes the use of mathematical equations, computers, and other electronic equipment. Chemical Models,Chemical Model,Model, Chemical
D011725 Pyridines Compounds with a six membered aromatic ring containing NITROGEN. The saturated version is PIPERIDINES.
D011743 Pyrimidines A family of 6-membered heterocyclic compounds occurring in nature in a wide variety of forms. They include several nucleic acid constituents (CYTOSINE; THYMINE; and URACIL) and form the basic structure of the barbiturates.
D012263 Ribonucleosides Nucleosides in which the purine or pyrimidine base is combined with ribose. (Dorland, 28th ed)

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