Synthesis of vitamin B12 derivatives incorporating peripheral cytosine and N-acetylcytosine
作者:Fangping Sun、Tamis Darbre、Reinhart Keese
DOI:10.1016/s0040-4020(99)00533-5
日期:1999.8
The synthesis and structural characterisation of vitaminB12derivatives incorporating a cytosine and a N4-acetyl cytosine in the side chain of the corrin and having the cobalt in different oxidation states are described. NaBH4 reduction led to reduction of Co(III) to Co(I) but also to reduction and deacetylation of the cytosine moiety. Reaction conditions were found where only Co reduction was achieved