CAS: 3056-17-5; 1-((2R,5S)-5-(Hydroxymethyl)-2,5-Dihydrofuran-2-yl)-5-Methylpyrimidine-2,4(1H,3H)-Dione

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84414-90-4 26638-87-9 122567-97-9

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Acetic Acid (2R,3S)-5-Methoxy-3-Phenylselanyl-Tetrahydro-Furan-2-Ylmethyl Ester 在 叔丁基二甲硅基三氟甲磺酸酯 氨,间氯过氧苯甲酸体系中,用 甲醇,二氯甲烷作为反应溶剂,反应 2.0H,获得 1-(2,3-Dideoxy-D-Glycero-Pent-2-Enofuranosyl)Thymine
参考文献:Synthesis Of Antiviral Nucleosides From Crotonaldehyde. Part 3.1,2 Total Synthesis Of Didehydrodideoxythymidine (D4T)
标题:Synthesis Of Antiviral Nucleosides From Crotonaldehyde. Part 3.1,2 Total Synthesis Of Didehydrodideoxythymidine (D4T)
摘要:The Total Synthesis Of The Antiviral Agent D4T 3 From The Epoxyalcohol 2,Itself Derived From Crotonaldehyde 1,In 6 Steps And 18% Overall Yield Is Described.
Doi:10.1016/S0040-4039(00)74799-X

专利信息

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-6069250-A
优先权日:1995-12-14
标 题 :Method and compositions for the synthesis of dioxolane nucleosides with β-configuration
发明人：MANSOUR TAREK; CIMPOIA ALEX; BEDNARSKI KRZYSZTOF
权利人:IAF BIOCHEM INT
摘要:The present invention relates to methods and compositions for preparing biologically important nucleoside analogues containing 1,3-dioxolane sugar rings. In particular, this invention relates to the stereoselective synthesis of the beta (cis) isomer by glycosylating the base with an intermediate of formula (II) below a temperature of about -10 DEG C. wherein R1 and L are as defined herein.

专利号:US-7820795-B2
优先权日:2004-03-30
标 题:Lactobacillus fermentum N-desoxyribosyl transferases and the use thereof for enzymatic synthesis of 2′, 3′—didesoxynucleosides and 2′,3′- didehydro-2′,3′- didesoxynucleosides
发明人：KAMINSKI PIERRE-ALEXANDRE
权利人:PASTEUR INSTITUT
摘要:N-deoxyribosyl transferases of Lactobacillus fermentum and their analogues, as well their use for the enzymatic synthesis of 2′,3′-dideoxynucleosides and 2′,3′-didehydro-2′,3′-dideoxynucleosides. These transferases and their analogues include a N-deoxyribosyl transferase protein (DTP) that has at least 70%-95% identity with the polypeptide of SEQ ID NO: 2 or SEQ ID NO: 4, that retains residues Y13, D77, D97, E103, and M312 which respectively correspond to positions 13, 77, 97, 103, and 132 of SEQ ID NO: 2; and that has threonine at a position corresponding to position 15 of SEQ ID NO: 2 or SEQ ID NO: 4. Polynucleotides, vectors and host cells encoding these N-deoxyribosyl transferases and their analogues.

专利号:US-2010261876-A1
优先权日:2007-09-25
标 题:Novel methods of synthesis for therapeutic antiviral peptides
发明人：BRAY BRIAN L; JOHNSTON BARBARA E; SCHNEIDER STEPHEN E; TVERMOES NICOLAI A; ZHANG HUYI; FRIEDRICH PAUL E
权利人:BRAY BRIAN L; JOHNSTON BARBARA E; SCHNEIDER STEPHEN E; TVERMOES NICOLAI A; ZHANG HUYI; FRIEDRICH PAUL E
摘要:Provided herein are methods for synthesis of peptides. In particular, provided herein are methods of synthesis for therapeutic antiviral peptides.

专利号:US-2025206743-A1
优先权日:2022-03-25
标 题:Tyk2 inhibitor synthesis and intermediates thereof
发明人：MASSE CRAIG E; PHADKE AVINASH S; LAWSON JON P; LEVY STUART; YANG XIAOWEI; WU GUISHENG; FAN SHUFENG
权利人:TAKEDA PHARMACEUTICALS CO
摘要:Described herein are methods of synthesis of a tyrosine-protein kinase 2 (TYK2) inhibitor and to intermediate compounds of the synthesis and methods of making the intermediates. Also provided are pharmaceutically acceptable compositions including compounds prepared by the synthetic method and methods of treating disorders using the same.

专利号:US-11845970-B2
优先权日:2016-01-15
标 题:Endo-S2 mutants as glycosynthases, method of making and use for glycoengineering of glycoproteins
发明人：WANG LAI-XI; YANG QIANG; LI TIEZHENG; TONG XIN
权利人:UNIV MARYLAND
摘要:The present invention provides for recombinant Endo-S2 mutants (named Endo-S2 glycosynthases) that exhibit reduced hydrolysis activity and increased transglycosylation activity for the synthesis of glycoproteins wherein a desired sugar chain is added to a fucosylated or nonfucosylated GlcNAc-IgG acceptor. As such, the present invention allows for the synthesis and remodeling of therapeutic antibodies thereby providing for certain biological activities, such as, prolonged half-life time in vivo, less immunogenicity, enhanced in vivo activity, increased targeting ability, and/or ability to deliver a therapeutic agent.