Location: Renewable Product Technology ResearchTitle: Rhodium-catalyzed reductive modification of pyrimidine nucleosides, nucleotide phosphates, and sugar nucleotides
Submitted to: Carbohydrate Research
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 12/13/2019
Publication Date: 12/19/2019
Citation: Price, N.P., Jackson, M.A., Vermillion, K., Blackburn, J.A., Hartman, T.M. 2019. Rhodium-catalyzed reductive modification of pyrimidine nucleosides, nucleotide phosphates, and sugar nucleotides. Carbohydrate Research. 488. Article 107893. https://doi.org/10.1016/j.carres.2019.107893.
Interpretive Summary: Nucleoside antibiotics are a well-known group that include several antibacterial, antiviral, and antifungal agents. We previously devised a method called hydrogenation that was used to chemically modify one of these antibiotics to reduce toxicity while still maintaining antimicrobial activity. The goal of this work was to optimize this hydrogenation process with several uridine- and thymidine-type nucleosides so this technology could be applied to other nucleoside antibiotics. These results provide valuable information for the development of new and improved antibiotics for use in agriculture and medicine.
Technical Abstract: Nucleosides and nucleotides are a group of small molecule effectors and substrates which include sugar nucleotides, purine and pyrimidine-based nucleotide phosphates, and diverse nucleotide antibiotics. We previously reported that hydrogenation of the nucleotide antibiotic tunicamycin leads to products with reduced toxicity on eukaryotic cells. We now report the hydrogenation of diverse sugar nucleosides, nucleotide phosphates, and pyrimidine nucleotides. UDP-sugars and other uridyl and thymidinyl nucleosides are quantitatively reduced to the corresponding 5,6-dihydro-nucleosides. Cytidyl pyrimidines are reduced, but the major products are the corresponding 5,6-dihydrouridyl nucleosides resulting from a deamination of the cytosine ring.