Nucleosides Services

A nucleoside is composed of a nitrogenous base and a five-carbon sugar (ribose or deoxyribose), which can be thought as a nucleotide without a phosphate group. The nitrogenous base is bond to the pentose via a beta-glycosidic linkage. Examples of nucleosides include cytidine, uridine, adenosine, guanosine, thymidine and inosine. Nucleosides are the basic building blocks of nucleic acids (DNA and RNA) that play a significant role in genetic information expression.



  • Nucleoside analogues are used as antiviral or anticancer agents in medicine.
  • Several analogues of the sugar backbone exist in molecular biology, which are more stable alternative nucleoside/nucleotide analogues including LNA, morpholino, PNA.
  • Dideoxynucleotides are used in sequencing. These nucleotides possess the non-canonical sugar dideoxyribose, which lacks 3’ hydroxyl group (which accepts the phosphate), therefore it cannot bond with the next base and terminates the chain.

Our Services

BOC Sciences is a leading biotechnology company which has years of professional and abundant experience in providing nucleoside synthesis service for customers all over the world. BOC Sciences’s sophisticated equipments, advanced technologies and highly experienced staffs are available to provide you a full spectrum of high quality specialty nucleoside synthesis service. We can provide a large variety of synthesis scales, modifications and purifications to satisfy your various needs, including sequencing, Polymerase Chain Reaction (PCR), hybridization studies, site directed mutagenesis, microarray experiments, etc. For example, a variety of different nucleosides or modified structures, other than the naturally occurring 2’-deoxyribose and ribose based nucleosides, have been developed to enhance or alter the natural properties of nucleic acids. Many of these modifications are commercially available as ready-to-use phosphoramidite reagents, but some can only be included if special arrangements with the IP holders are made to supply us with the required materials. At BOC Sciences, we also offer nucleosides in stock products including fluorescent nucleosides, antimetabolic nucleosides, cancer and proliferation marker nucleosides. In conclusion, our advantages are as following but not limited:

  • Capability -We can cover all aspects of your project.
  • Quality - Processes are carried out with the GMP manufacture and standard operating procedure.
  • Efficiency - We are able to provide the fastest turnaround time of any supplier in the industry.
  • Value -We focus on the quality of our service and all supported by competitive pricing.
  • Global - We are able to provide our services to clients worldwide with ease.

Whether in-stock chemicals, custom synthesis or contract research, we are assured of an efficient and courteous service as well as highest purity products. Please contact us!


  1. Klecker, R. W., Anderson, L., Katki, A. G., & Collins, J. M. (2004). U.S. Patent No. 6,677,314. Washington, DC: U.S. Patent and Trademark Office.
  2. Peifer, M., Berger, R., Shurtleff, V. W., Conrad, J. C., & MacMillan, D. W. (2014). A general and enantioselective approach to pentoses: a rapid synthesis of PSI-6130, the nucleoside core of sofosbuvir. Journal of the American Chemical Society, 136(16), 5900-5903.
  3. Eyer, L., Nencka, R., Huvarová, I., Palus, M., Joao Alves, M., Gould, E. A & Růžek, D. (2016). Nucleoside inhibitors of Zika virus. The Journal of infectious diseases, 214(5), 707-711.