What is 3-carbamoyl-1-[(2R,3R,4S,5R)-5-[(hydrogen phosphonatooxy)methyl]-3,4-dihydroxyoxolan-2-yl]-1λ?-pyridin-1-ylium (CAS: 1094-61-7)?

3-Carbamoyl-1-[(2R,3R,4S,5R)-5-[(hydrogen phosphonatooxy)methyl]-3,4-dihydroxyoxolan-2-yl]-1λ?-pyridin-1-ylium (CAS: 1094-61-7) is a complex organic compound containing a pyridinium ring, a phosphonate group, and a carbohydrate moiety. Its molecular structure features multiple stereocenters, indicating potential biological activity. This compound is often studied for its role in pharmaceutical research, particularly as a precursor for enzyme inhibitors. Its exact chemical formula requires structural analysis but is typically associated with phosphonate ester derivatives.