109389-25-5Relevant academic research and scientific papers
Nucleobase Modifiers Identify TET Enzymes as Bifunctional DNA Dioxygenases Capable of Direct N-Demethylation
Ghanty, Uday,Kohli, Rahul M.,Wang, Tong
supporting information, p. 11312 - 11315 (2020/05/16)
TET family enzymes are known for oxidation of the 5-methyl substituent on 5-methylcytosine (5mC) in DNA. 5mC oxidation generates the stable base 5-hydroxymethylcytosine (5hmC), starting an indirect, multi-step process that ends with reversion of 5mC to un
In search of Flavivirus inhibitors part 2: Tritylated, diphenylmethylated and other alkylated nucleoside analogues
Saudi, Milind,Zmurko, Joanna,Kaptein, Suzanne,Rozenski, Jef,Neyts, Johan,Van Aerschot, Arthur
, p. 98 - 109 (2014/03/21)
Several flaviviruses, such as the yellow fever virus and the dengue virus cause severe and potentially lethal infection in man. Following up on our initial hit 3′,5′-bistritylated uridine 1, a series of alkylated nucleoside analogues were synthesized and evaluated for their in vitro antiviral activities against dengue fever virus and yellow fever virus. Hereto, alkyl and aryl groups were attached at various positions of the sugar ring combined with subtle variation of the heterocyclic base. Among the new series of derivatives, 3′,5′-di-O-trityl-5-fluoro-2′-deoxyuridine (39) was the most efficient in this series and inhibited both yellow fever virus and dengue virus replication with a 50% effective concentration (EC50) of ～1 μg/mL without considerable cytotoxicity. The other fluorinated derivatives proved more toxic. Almost all diphenylmethylated pyrimidine nucleosides with 3′,5′-di-O-benzhydryl-2′-deoxyuridine (50) as the example were endowed with strong cytotoxic effects down to 1 μg/mL.
Convenient intermediates for the preparation of C-4 modified derivatives of pyrimidine nucleosides
Miah, Anwar,Reese, Colin B.,Song, Quanlai
, p. 53 - 65 (2007/10/03)
4-(4-Nitrophenoxy)-1-(β-D-ribofuranosyl)pyrimidin-2(1H)-one 15, 5- methyl-4-(1,2,4-triazol-1-yl)-1-(β-D-2-deoxyribofuranosyl)pyrimidin-2(1H)- one 7a and 4-(4-nitrophenoxy)-1-(βD-2-deoxyribofuranosyl)pyrimidin-2(1H)- one 17a, respectively, have been prepared and are recommended as reactive intermediates for the preparation of derivatives of uridine, thymidine and 2'-deoxyuridine which are modified at C-4.
Synthesis and antiviral properties of (E)-5-(2-bromovinyl)-2'-deoxycytidine-related compounds
Jones,Sayers,Walker,De Clercq
, p. 268 - 271 (2007/10/02)
Treatment of 3',5'-di-O-acetyl-(E)-5-(2-bromovinyl)-2'-deoxyuridine (2) with p-chlorophenyl phosphorodichloridate and 1,2,4-triazole gave 1-(3,5-di-O-acetyl-2-deoxy-β-D-erythro-pentofuranosyl)-(E)-5-(2-brom vinyl)-4-(1,2,4-triazol-1-yl)pyrimidin-2(1H)-one (3). Reaction of 3 with ammonia gave (E)-5-(2-bromovinyl)-2'-deoxycytidine (1), the overall yield from 2 being 60%. A similar 4-(1,2,4-triazol-1-yl) derivative (4) was obtained from 3',5'-di-O-acetylthymidine by the use of phosphoryl chloride as the condensing agent. Treatment of thymidine with trimethylsilyl chloride and then with phosphoryl chloride and 1,2,4-triazole gave upon workup 1-(2-deoxy-β-D-erythro-pentofuranosyl)-5-methyl-4(1,2,4-triazol-1-yl pyrimidin-2(1H)-one (5). (E)-5-(2-Bromovinyl)-2'-deoxyuridine (BVDU) when similarly treated gave the corresponding (E)-5-(2-bromovinyl) compound 7. A minor product formed in both cases was a 4-(1,2,4-triazol-1-yl) derivative in which the nucleoside 5'-hydroxyl group had been replaced by chlorine (6 and 8). Whereas compounds 4-6 and 8 did not exhibit a selective antiviral effect, compounds 1-3 and 7 proved almost as active as the reference compound BVDU. In particular, compound 7, the 4-triazolyl derivative of BVDU, would seem worth pursuing for its potential as an inhibitor of herpes simplex virus type 1 and varicella-zoster virus.
