1055036-95-7

Upstream product

• 22423-26-3 O-2,2'-cyclo-5-methyluridine 
• 817623-11-3 2,2'-anhydro-1-[2'-deoxy-5'-O-(4,4'-dimethoxytrityl)-β-D-arabinofuranosyl-5-methyluridine] 
• 606972-27-4 3'-O-acetyl-2'-O,5-dimethyluridine 
• 153631-20-0 (2R,3R,4R,5R)-2-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-4-((tert-butyldimethylsilyl)oxy)-5-(5-methyl-2,4-dioxo-3,4-dihyd ropyrimidin-1(2H)-yl)tetrahydrofuran-3-yl (2-cyanoethyl) diisopropylphosphoramidite 
• 153631-19-7 5'-O-(4,4'-dimethoxytrityl)-2'-O-methyl-5-methyluridine 

Relevant academic research and scientific papers

Sugar conformational effects on the photochemistry of thymidylyl(3′-5′)thymidine

The synthesis and conformational analysis of 2′-O,5-dimethyluridylyl(3′-5′)-2′-O,5-dimethyluridine (1a), the analogue of thymidylyl(3′-5′)thymidine (TpT; 1b) in which a methoxy group replaces each 2′-α-hydrogen atom, are described. In comparison with TpT, such modification increases the population of the C3′-endo conformer of the sugar ring puckering at the 5′- and 3′-ends from 30 to 75% and from 37 to 66%, respectively. Photolyses of 1a and TpT at 254 nm are qualitatively comparable (the cis-syn cyclobutane pyrimidine dimer and the (6-4) photoproduct are formed), although it is significantly faster in the case of 1a. These results are explained by the increased propensity of the modified dinucleotide to adopt a base-stacked conformation geometry reminiscent of that for TpT.