Studies On The Synthesis Of Nicotinamide Nucleoside And Nucleotide Analogues And Their Inhibitions Towards Cd38 Nadase

Nicotinamide adenine dinucleotide (NAD) analogues inhibit the NADase activity of CD38. In the current study, efficient protocols for the synthesis of substituted-nicotinamide nucleosides and nucleotides were developed. The one-pot phosphorylation esterification strategy provides a convenient way of obtaining nicotinamide nucleoside phosphodiesters from the corresponding nucleosides. Structure activity relationship information revealed that replacement of 3'-hydroxy group with F or N-3 led to the considerably decrease of activity as compared with ara-F NMN. Phosphodiesterification of nicotinamide nucleosides lowers their inhibitory activities in some extent.