Discovery of imidazo[1,2-c]pyrimidin-5(6H)-one heterosubstituted nucleoside analogues with potent activity against human hepatitis B virus in vitro
摘要:
The in vitro antihepatitis B virus (HBV) activities of eleven novel imidazo[1,2-c]pyrimidin-5(6H)-one dideoxynucleoside analogues in which the sugar ring is 1,3-dioxolane or 1,3-oxathiolane were compared in the chronically HBV-producing human cell line 2.2.15. Seven nucleoside analogues 4, 9, 10, 15, 16, Is, and 24, of which 16 possesses the tra,ls relative stereochemistry, displayed good potency and selectivity towards HBV. The order of decreasing potency at the 90% extracellular DNA inhibition level was 15>16>24 approximate to 9>10>18. None of the tested imidazo[1,2-c]pyrimidines inhibited the replication of HIV-1 in MT-4 cells. (C) 1997, Elsevier Science Ltd.
The present invention relates to nucleoside diphosphate mimics and nucleoside triphosphate mimics, which contain diphosphate or triphosphate moiety mimics and optionally sugar-modifications and/or base-modifications. The nucleotide mimics of the present invention, in a form of a pharmaceutically acceptable salt, a pharmaceutically acceptable prodrug, or a pharmaceutical formulation, are useful as antiviral, antimicrobial, and anticancer agents. The present invention provides a method for the treatment of viral infections, microbial infections, and proliferative disorders. The present invention also relates to pharmaceutical compositions comprising the compounds of the present invention optionally in combination with other pharmaceutically active agents.
[EN] NOVEL PHOSPH(ON)ATE- AND SULF(ON)ATE-BASED PHOSPHATE MODIFIED NUCLEOSIDES USEFUL AS SUBSTRATES FOR POLYMERASES AND AS ANTIVIRAL AGENTS<br/>[FR] NOUVEAUX NUCLÉOSIDES MODIFIÉS AVEC UN PHOSPHATE, À BASE DE PHOSPH(ON)ATE ET DE SULF(ON)ATE, UTILES COMME SUBSTRATS POUR LES POLYMÉRASES ET COMME AGENTS ANTIVIRAUX
申请人:UNIV LEUVEN KATH
公开号:WO2011069688A1
公开(公告)日:2011-06-16
This invention provides phosphate-modified nucleosides represented by the structural formula ( I ): wherein W is O or S, and wherein B, R1; R3 and R2. are as defined herein. These compounds are useful as substrates for DNA/RNA polymerases, and as anti-viral agents in particular against HIV-1.
NOVEL PHOSPH(ON)ATE- AND SULF(ON)ATE-BASED PHOSPHATE MODIFIED NUCLEOSIDES USEFUL AS SUBSTRATES FOR POLYMERASES AND AS ANTIVIRAL AGENTS
申请人:Herdewijn Piet
公开号:US20120245029A1
公开(公告)日:2012-09-27
This invention provides phosphate-modified nucleosides represented by the structural formula (I): wherein W is O or S, and wherein B, R
1
; R
3
and R
2
. are as defined herein. These compounds are useful as substrates for DNA/RNA polymerases, and as anti-viral agents in particular against HIV-1.
Oxidative degradation of L-ascorbic acid acetals to 2′,3′-dideoxy-3′-oxaribofuranosides. Synthesis of enantiomerically pure 2′,3′-dideoxy-3′-oxacytidine stereoisomers as potential antiviral agents
作者:Bernard R. Belleau、Colleen A. Evans、H.L.Allan Tse、Haolun Jin、Dilip M. Dixit、Tarek S. Mansour
DOI:10.1016/s0040-4039(00)60903-6
日期:1992.11
Enantiomericallypure2′,3′-dideoxy-3′-oxacytidine nucleoside analogues were synthesized from L-ascorbic acid in eight steps and good overall yield.
Method of manufacture of 1,3-oxathiolane nucleosides
申请人:GILEAD SCIENCES, INC.
公开号:EP1535921A1
公开(公告)日:2005-06-01
Processes for the preparation of 1,3-oxathiolane nucleosides are provided that include efficient methods for the preparation of the 1,3-oxathiolane ring and subsequent condensation of the 1,3-oxathiolane with a pyrimidine or purine base. Using the processes described herein, the compounds can be provided as isolated enantiomers.