Nucleotide continued sugar

New sugar nucleotides continue to be isolated, and Table I lists those that have been isolated since the previous article was written. References are also given for those compounds of this category that have been enzymically synthesized. However, Table I does not generally include those compounds that have been isolated (or synthesized by enzymes) from sources additional to those mentioned in the previous review. Compounds found under obviously non-physiological conditions have also been excluded. 

The sugar nucleotides (an uninformative name that has been used for glycosyl nucleotides, or more strictly, glycosyl esters of nucleoside di- or mono-phosphates) were discussed in this Series12 in 1973. Since then, accumulation of new data about these derivatives has continued, and now, about 35 representatives of this class are known to participate in the biosynthesis of polysaccharide chains of bacterial polymers (for a survey, see Ref. 13). These include glycosyl esters of uridine 5 -diphosphate (UDP), thymidine 5 -diphosphate (dTDP), guanosine 5 -diphosphate (GDP), cytidine 5 -diphosphate (CDP), cytidine 5 -monophosphate (CMP), and adenosine 5 -diphosphate (ADP). 

Quinone imine 256 also reacts very easily with the sugar groupings of nucleosides or nucleotides. Meunier and co-workers (174-176) have continued their studies of these reactions with simple nucleosides (Scheme 63 and 393) and diribonucleoside monophosphates (394). The 2 -deoxy diribonucleoside mono-... 

---