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Updated: Jul 1, 2026

Nucleoside Triphosphates - From Synthesis to Biochemical Characterization
Published on: April 3, 2014
Nucleoside diphosphate prodrugs
C Meier1, H J Jessen, J Balzarini
1Organic Chemistry, Department of Chemistry, Faculty of Science, University of Hamburg, Martin-Luther-King-Platz 6, D-20146 Hamburg, Germany. chris.meier@chemie.uni-hamburg.de
Researchers developed novel prodrugs for antiviral therapies, bypassing the need for kinase activation. These bis-(acyloxybenzyl)-masked nucleoside diphosphates (BAB-NDPs) offer controlled release of active drugs like AZT and d4T.
Area of Science:
- Medicinal Chemistry
- Pharmacology
- Biochemistry
Background:
- Nucleoside analogs are crucial in antiviral and antitumor treatments.
- Activation requires intracellular phosphorylation by kinases, a rate-limiting step.
- Existing prodrug strategies primarily target nucleoside monophosphates.
Purpose of the Study:
- To adapt the bis-(acyloxybenzyl) (BAB) masking strategy for nucleoside diphosphates (NDPs).
- To synthesize and characterize BAB-masked NDPs of anti-HIV drugs AZT and d4T.
- To evaluate the hydrolytic properties and drug release mechanisms of these novel NDP prodrugs.
Main Methods:
- Chemical synthesis of bis-(acyloxybenzyl)-masked nucleoside diphosphates (BAB-NDPs).
- Hydrolytic stability studies at physiological pH and in cellular extracts.
- Assessment of selective cleavage and drug delivery kinetics.
Main Results:
- Successful synthesis and isolation of BAB-NDPs derived from AZT and d4T.
- Demonstrated tunable hydrolytic stability: stable at pH 7.4, labile in cellular environments.
- Observed selective cleavage, releasing nucleoside diphosphates within 15 minutes without pyrophosphate degradation.
Conclusions:
- The BAB-concept is effectively extended to nucleoside diphosphates.
- These BAB-NDPs exhibit desirable stability and release profiles for prodrug applications.
- This represents a significant advancement in developing efficient nucleoside diphosphate prodrugs.
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