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  • Articles  (2)
  • 13C MAS NMR  (1)
  • Aldolase  (1)
  • 1
    ISSN: 1434-193X
    Keywords: DNA ; Dihydroxyacetone monophosphate ; Aldolase ; Carbon-13 ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: ---A synthesis of [3′,4′-13C2]thymidine (1) is described in which [13C2]acetic acid (2) is converted into the nucleoside in twelve steps with 9% overall yield. D-2-Deoxyribose-5-phosphate aldolase (DERA, EC 4.1.2.4) and triosephosphate isomerase (TPI, EC 5.3.1.1) are used for the stereocontrolled formation of D-[3,4-13C2]-2-deoxyribose-5-phosphate (8) from [2,3-13C2]dihydroxyacetone monophosphate (DHAP, 7) and acetaldehyde in 80% yield. The route permits the introduction of isotopically enriched carbon atoms at any position or combination of positions in the furanose ring and the product can be coupled with any of the four naturally occurring base moieties.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1573-5079
    Keywords: 13C MAS NMR ; EPR ; FTIR ; spheroidene ; stable isotope labelling ; ubiquinone
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract In this minireview the information at the atomic level that has been obtained by studying photosynthetic reaction centers with site-directed isotope labelling is discussed. The required isotopically labelled RCs are prepared using isotopically labelled amino acids and cofactors that have been prepared via organic total synthetic chemistry. In some cases the results of isotopically labelled RCs that are prepared via other methods are also discussed.
    Type of Medium: Electronic Resource
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