Metabolic interrelationships of dietary riboflavin and vitamin B12 in the rat

W. V. Lavate, A. Sreenivasan
1959 British Journal of Nutrition  
Both riboflavin and vitamin B" have in common a I ,2-dimethyl-4,5-diaminobenzene moiety (substance I), which could well be a biogenetic precursor of these two vitamins. Although substance I has not been demonstrated to be in the pathway for the biosynthesis of these vitamins, a considerable amount of evidence is available in favour of such a view.
doi:10.1079/bjn19590060 pmid:14414633 fatcat:cneiamndevfirfl4ao2ggos43a