95585-77-6Relevant academic research and scientific papers
Peracetylated β-allyl C-glycosides of D-ribofuranose and 2-deoxy-D-ribofuranose in the chemical literature: Until now, mirages in the literature
Martinez, Heike Otero,Reinke, Helmut,Michalik, Dirk,Vogel, Christian
, p. 1834 - 1840 (2009)
The peracetylated β-allyl C-glycosides of D-ribofuranose (8) and 2-deoxy-D-ribofuranose (13) were stereoselectively prepared via the isopropylidene derivatives 3 and 4. These reactions represent what are, to the best of our knowledge, the first preparation of these apparently simple derivatives whose structures were carefully proved by NMR and X-ray investigations. Publications which allegedly described the synthesis of 8 and 13 were critically examined. Georg Thieme Verlag Stuttgart.
First characterisation of two important postulated intermediates in the formation of a HydT DNA lesion, a thymidine oxidation product
Psykarakis, Emmanuel E.,Chatzopoulou, Elli,Gimisis, Thanasis
, p. 2289 - 2300 (2018/04/05)
A number of environmental pollutants and endogenous oxidation agents form 1-(2-deoxy-β-d-ribofuranosyl)-5-hydroxy-5-methylhydantoin (HydT), an important DNA lesion resulting from thymidine oxidation. In this paper, two intermediates, postulated in the formation of HydT, have been characterised for the first time. The first, N1-formyl-N3-pyruvoylurea intermediate, was produced by the ozonolysis reaction of 2′,3′,5′-tri-O-acetylribo-, 3′,5′-di-O-TBS- and N3,O3′,O5-tribenzyl-protected thymidines and was shown to produce, upon decomposition and depending on the protecting group and the conditions, HydT alone, or together with protected-β-d-ribofuranosyl-N1-formylurea and formamide products. In addition, the second and long sought, open-chain-pyruvoylurea intermediate, was produced through de novo synthesis in protected β-d-ribofuranosyl-, 2-deoxy-β-d-ribofuranosyl- and 2-deoxy-β-d-ribopyranosyl systems. The conditions that induce the cyclization to the hydantoin ring of HydT have been determined. The chemistry utilised in the de novo synthesis is suitable for generating isotopically labelled HydT, as a reference in isotope-dilution-aided quantification of DNA damage.
Synthesis and Biological Activities of 2-Pyrimidinone Nucleosides. 2. 5-Halo-2-pyrimidinone 2'-Deoxyribonucleosides
Efange, Simon M. N.,Alessi, Elaine M.,Shih, H. C.,Cheng, Yung-Chi,Bardos, Thomas J.
, p. 904 - 910 (2007/10/02)
1-(2-Deoxy-β-D-ribofuranosyl)-5-bromo-2-pyrimidinone (BrPdR) and 1-(2-deoxy-β-D-ribofuranosyl)-5-iodo-2-pyrimidinone (IPdR) have been synthesized by condensation of the appropriate silylated bases 2a and 2b, respectively, with 3,5-bis-O-(p-chlorobenzoyl)-2-deoxy-α-D-ribofuranosyl chloride (8) in 1,2-dichloroethane, in the presence of SnCl4, followed by separation of the anomeric blocked nucleosides via column chromatography and subsequent deprotection with methanolic ammonia.Both BrPdR and IPdR exhibited significant antiherpes activities against various strains of HSV-1 and HSV-2, the latter compound (IPdR) showing the higher activity as well as the stronger binding to the virus-specific thimidine kinase.
