181785-84-2Relevant academic research and scientific papers
Total synthesis of α-elvucitabine
Zhao, Guilong,Lou, Yuanyuan,Zhang, Linshan,Shao, Hua,Xu, Weiren,Tang, Lida,Zou, Meixiang
, p. 2885 - 2893 (2012/08/14)
(Chemical Equation Presented) Total synthesis of α-elvucitabine was achieved in 26% overall yield by a concise nine-step procedure starting from L-lyxose, with trimethylsilyl trifluoromethaneoulfonate (TMSOTf)-mediated stereocontrolled α-N-glycosidation and olefination through Barton-McCombie deoxygenation being the key steps, and the stereochemistry of the product was determined by nuclear Overhauser effect spectroscopy. Copyright Taylor & Francis Group, LLC.
Synthesis of D-D4FC, a biologically active nucleoside via an unprecedented palladium mediated Ferrier rearrangement-type glycosidation with an aromatization prone xylo-furanoid glycal
Choudhury, Anusuya,Pierce, Michael E.,Nguyen, Dieu,Storace, Louis,Confalone, Pat N.
, p. 8099 - 8102 (2007/10/03)
D-D4FC (1) is an anti-HIV agent currently under phase II clinical trial (Pharmaset Inc). Its molecular architecture is suitable for a Ferrier rearrangement kind of operation on a furanoid glycal to fix the position of the double bond and the relative ster
METHOD FOR SYNTHESIZING β-L-FLUORO-2′,3′DIDEHYDROCYTIDINE (β-L-FD4C)
-
Page/Page column 19-20, (2008/06/13)
The invention provided a method of synthesizing β -L-5-fluoro-2′,3′-dideoxy-2′,3′-didehydrocytidine (β -L-FD4C). The method allows for large-scale production of β -L-FD4C in an efficient, cost-efficient, and environmentally sound manner.
Method for the synthesis of 2',3'-dideoxy-2',3'-didehydronucleosides
-
Paragraph 0702, (2008/06/13)
The present invention is an efficient synthetic route to 2′,3′-dideoxy-2′,3 ′-didehydro-nucleosides from available precursors with the option of introducing functionality as needed, such as, the 2′,3′-dideoxy and 2′- or 3′-deoxyribo-nucleoside analogs as well as additional derivatives obtained by subsequent functional group manipulations. Briefly, the present invention discloses a method for the preparation of β-D and β-L-2′,3′-dideoxy-2′,3′-didehydro-nucleosides starting from appropriately substituted ribonucleosides in two, optionally three steps: Step (1) a haloacylation, such as haloacetylation, and in particular, bromoacetylation; Step (2) a reductive elimination; and optionally, Step (3) a deprotection. The haloacylation of step (1) can form the 2′-acyl-3′-halonucleoside, the 3′-acyl-2′-halonucleoside, or a mixture thereof.
Synthesis and biological evaluation of 2',3'-didehydro-2',3'-dideoxy-5- fluorocytidine (D4FC) analogues: Discovery of carbocyclic nucleoside triphosphates with potent inhibitory activity against HIV-1 reverse transcriptase
Shi, Junxing,McAtee, J. Jeffrey,Wirtz, Susan Schlueter,Tharnish, Phillip,Juodawlkis, Amy,Liotta, Dennis C.,Schinazi, Raymond F.
, p. 859 - 867 (2007/10/03)
The discovery of a novel cytosine nucleoside, β-D-2',3'-didehydro- 2',3'-dideoxy-5-fluorocytidine (D-D4FC), as a potent antihuman immunodeficiency virus (HIV) agent led us to synthesize a series of analogues and derivatives of β-D-D4FC that could be more selective and also possess increased glycosidic bond stability. The synthesized D-D4FC analogues were evaluated for anti-HIV-1 activity, anticancer activity, and cytotoxicity in various cells. The biological data demonstrated that the 5-substitution of β-D-D4FC with bromine (6c) and iodine (6d) resulted in the loss of antiviral activity, and the α-D anomer (7a) of D-D4FC was also devoid of activity. The 5-fluorouracil analogues (6b and 7b) of D-D4FC were less potent and more cytotoxic than the parent compound, whereas the β-L-D4FU (11) showed both potent anti-HIV-1 activity and cytotoxicity. N4- and 5'-O-acyl derivatives (17, 15a-c) of β-D-D4FC exhibited comparable antiviral activity to β-D- D4FC. In contrast, the N4-isopropyl derivative (20) of β-D-D4FC was not active against HIV-1, even at 100 μM. The carbocyclic analogues (26a,b) of D4FC demonstrated weak activity against HIV-1 and no toxicity in various cells. The triphosphates (27a,b) of the carbocyclic nucleosides demonstrated potent inhibitory activity against recombinant HIV-1 reverse transcriptase at submicromolar concentrations. Of the compounds tested as potential anticancer agents, β-D-, α-D-, and β-L-D4FU (6b, 7b, 11) showed inhibitory activity against rat glioma and modest activity against human lung carcinoma, lymphoblastoid, and skin melanoma cells.
Synthesis and comparative evaluation of two antiviral agents: β-L- Fd4C and β-D-Fd4C
Chen, Shu-Hui,Lin, Stanley,King, Ivan,Spinka, Tracy,Dutschman, Ginger E.,Gullen, Elizabeth A.,Cheng, Yung-Chi,Doyle, Terrence W.
, p. 3245 - 3250 (2007/10/03)
The synthesis of β-D-Fd4C was achieved in a stereoselective fashion from D-xylose. The antiviral activity and cytotoxicity of β-D-Fd4C was compared with that of β-L-Fd4C and 3TC (Lamivudine). Of the three agents compared, β-L-Fd4C was found to be the most potent antiviral agent.
Stereoselective syntheses of β-L-FD4C and β-L-FddC
Chen, Shu-Hui,Li, Xiuyan,Li, Jun,Niu, Chuansheng,Carmichael, Ellen,Doyle, Terrence W.
, p. 3449 - 3452 (2007/10/03)
Stereocontrolled syntheses of two potent antiviral agents, β-L-FD4C and β-L-FddC, were accomplished both in 10-step sequences, with an overall yield of 27% and 25%, respectively. It is worthwhile to mention that the introduction of a phenylseleno moiety to the C-2α position of the lactone 4 can now be performed in a stereocontrolled fashion, providing the key intermediate 5α in 75% yield.
