专利号:WO-2022256490-A9 优先权日:2021-06-03 标题:Improved synthesis of phosphoramidates for the treatment of hepatitis b virus 发明人:LOCKWOOD MARK 权利人:ANTIOS THERAPEUTICS INC 摘要:The synthesis of phosphoramidate prodrugs useful in the treatment of viral infections is disclosed. Specifically, an improved synthesis of phosphoramidate nucleotides useful in the treatment of Hepatitis B virus is disclosed.
专利号:US-2003162992-A1 优先权日:2001-12-14 标 题 :Preparation of intermediates useful in the synthesis of antiviral nucleosides 发明人:WATANABE KYOICHI A; DU JINFA 摘要:The present invention is an efficient process for the manufacture of α-acyloxyacetaldehyde, a key intermediate in the synthesis of 1,3-oxathiolane and 1,3-dioxolane nucleosides.
专利号:US-9206209-B2 优先权日:2010-10-19 标 题:Nucleotide analogue, method of synthesis of nucleotide analogue, use of nucleotide analogue, antiviral pro-nucleotide, pharmaceutical composition 发明人:KRASZEWSKI ADAM; ROMANOWSKA JOANNA; SOBKOWSKI MICHAL; SZYMANSKA-MICHALAK AGNIESZKA; STAWINSKI JACEK; BORYSKI JERZY; LIPNIACKI ANDRZEJ; PIASEK ANDRZEJ 权利人:KRASZEWSKI ADAM; ROMANOWSKA JOANNA; SOBKOWSKI MICHAL; SZYMANSKA-MICHALAK AGNIESZKA; STAWINSKI JACEK; BORYSKI JERZY; LIPNIACKI ANDRZEJ; PIASEK ANDRZEJ; INST CHEMII BIOORG PAN; NARODOWY INST LEKOW 摘要:An exemplary emboidment is related to a pharmaceutical composition of the class of nucleotide analogues and antiviral pro-nucleotides useful in partial or complete inhibition of human immunodeficiency virus (HIV). An exemplary embodiment is expressed in the formula (XVI): n nwhere X stands for N 3 and B stands for thymidine-1-yl, or X stands for H and B stands for uracil-1-yl or adenin-1-yl or hypoxanthin-1-yl.A method of synthesis of the nucleotide analogue using a phosphorylating agent for synthesis of the nucleotide analogue is provided.
专利号:US-11858953-B2 优先权日:2018-04-04 标 题:Compositions and methods for synthesis of phosphorylated molecules 发明人:CHAPUT JOHN; LIAO JEN-YU; BALA SAIKAT 权利人:UNIV CALIFORNIA 摘要:The invention provides compositions and methods for synthesis of phosphorylated organic compounds, including nucleoside triphosphates.
专利号:US-8304540-B2 优先权日:2007-05-18 标题:Process for stereoselective synthesis of lamivudine 发明人:LI JINLIANG; LV FENG 权利人:LI JINLIANG; LV FENG; SHANGHAI DESANO PHARMACEUTICAL HOLDING CO LTD 摘要:The present invention discloses a process for stereoselective synthesis of Lamivudine comprising the following steps: (a) performing a glycosylation reaction between the compound of formula (I) and cytosine or protected cytosine, and separating the reaction product by recrystallization to obtain the intermediate of formula (II); and (b) deprotecting the intermediate of formula (II) to obtain Lamivudine.
专利号:US-10995093-B2 优先权日:2016-04-07 标 题 :Synthesis of 2′-fluoro-6′-methylene-carbocyclic adenosine (FMCA) and 2′-fluoro-6′methylene-carbocyclic guanosine (FMCG) 发明人:CHU CHUNG K; MULAMOOTTTIL VARUGHESE ALEXANDER; MISHRA RAM C; SINGH UMA SHARAN 权利人:UNIV GEORGIA 摘要:The invention provides a new convergent approach for the synthesis of 2′-fluoro-6′-methylene-carbocyclic adenosine (FMCA) and 2′-fluoro-6′-methylene-carbocyclic guanosine (FMCG) from a readily available starting material in eight steps. An efficient and practical methodology for stereospecific preparation of a versatile carbocyclic key intermediate, (1S,3R, 4R)-3-tert-butoxy-4-(tert-butoxymethyl)-2-fluoro-5-methylenecyclopentanol (compound 8 of scheme 1A or a) in only six (6) steps is also provided. Prodrugs of these compounds are also prepared.
参考文献:10.1093/ije/dyp402 摘要:Houlihan CF, Bland RM, Mutevedzi PC, Lessells RJ, Ndirangu J, Thulare H, Newell M-. Cohort Profile: Hlabisa HIV Treatment and Care Programme. International Journal of Epidemiology. 2010 Feb 12;40(2):318–26. doi: 10.1093/ije/dyp402. 参考文献:10.1007/s12012-010-9065-z 摘要:Torres SM, Divi RL, Walker DM, McCash CL, Carter MM, Campen MJ, Einem TL, Chu Y, Seilkop SK, Kang H, Poirier MC, Walker VE. In Utero Exposure of Female CD-1 Mice to AZT and/or 3TC: II. Persistence of Functional Alterations in Cardiac Tissue. Cardiovascular Toxicology. 2010 Feb 13;10(2):87–99. doi: 10.1007/s12012-010-9065-z. 参考文献:10.1002/jssc.200900674 摘要:Ji HY, Lee HW, Yoon YR, Lee HS. Quantification of lamivudine in human plasma by hydrophilic interaction chromatography-tandem mass spectrometry. J Sep Sci. 2010 Mar;33(6-7):948–54. doi: 10.1002/jssc.200900674. 参考文献:10.2174/157340610791321433 摘要:van Heerden J, Breytenbach JC, N'Da DD, Breytenbach JW, du Preez JL. Synthesis and in vitro transdermal penetration of methoxypoly(ethylene glycol) carbonate and carbamate derivatives of lamivudine (3TC). Med Chem. 2010 Mar;6(2):91–9. doi: 10.2174/157340610791321433. 参考文献:10.1111/j.1478-3231.2010.02207.x 摘要:Marcellin P, Sung J, Piratvisuth T. Avoiding and managing lamivudine resistance in chronic hepatitis B: current approaches and potential strategies including pegylated interferon. Liver Int. 2010 May;30(5):657–68. doi: 10.1111/j.1478-3231.2010.02207.x.