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Abstract 55
M. Kodera, F. J. Leeper and A. R. Battersby "Biosynthesis of Vitamin B12: The Fate of H-8 as Precorrin-2 is Enzymically Converted into Cobyrinic Acid" J. Chem. Soc., Chem. Commun.,1992, 835-837. Full Text The dimethylated B12-Precursor, precorrin-2, is prepared strongly labelled with tritium at 3-H and 8-H to allow proof that the 3-H label is retained where as the 8-H label is lost during the biosynthetic conversion of precorrin-2 into cobyrinic acid.
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