CAS: 38240-29-8; 3-Nitropyridine-2-Thiol

相似化合物

22746-79-8 68118-07-0 68206-45-1

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CAS号5470-18-8 2-氯-3-硝基吡啶 | CAS号76880-29-0 (R)-2-((叔丁氧基羰基)... | CAS号106202-26-0 ethyl 3-(3-nitr... | CAS号38240-21-0 3-氨基吡啶-2(1H)-硫酮

📜2-氯-3-硝基吡啶置于硫脲,氢氧化钾体系中,用 乙醇,水 作为反应溶剂,化学反应 3.0H,反应生成 3-硝基-2-吡啶硫醇
参考文献:Anti-Infective Agents
标题:Anti-Infective Agents
摘要:本发明提供了一种具有公式(I)1的hcv聚合酶抑制化合物,以及包含有效治疗量的该化合物的组合物.本发明还提供了用于抑制丙型肝炎病毒(hcv)聚合酶的方法,用于抑制hcv病毒复制的方法以及用于治疗或预防hcv感染的方法.本发明还提供了制造所述化合物的方法以及在这些方法中使用的合成中间体.

专利信息

专利号:US-2023331778-A1
优先权日:2020-08-31
标 题 :An improved process for fmoc synthesis of etelcalcetide
发明人：LOBO LESTER JOHN; CHANDRAKESAN MURALIDHARAN; DOSHI CHETAN; CHANADAK SHAILESH LALCHAND; YADAV NANDLAL GOPAL; MOHE NIKHIL UMESH; VISHWANATHAN KODANDARAMAN; CHAVRE PRAFUL SHAMRAO
权利人:USV PRIVATE LTD
摘要:The present invention relates to an improved process for the synthesis of Etelcalcetide and its analogs by solid phase synthesis of Fmoc protected amino acids in a sequential manner, followed by acetylation of terminal D-cys and cleavage of peptide from solid support. The crude heptapeptide thus obtained is reduced using Tris(2-carboxyethyl) phosphine hydrochloride, purified and oxidized with L-cysteine. The oxidized Etelcalcetide is purified and salt exchanged using a one-step reverse phase chromatography process. The purified Etelcalcetide hydrochloride is then precipitated using organic solvents, concentrated and lyophilized to purity of greater than 99.0%.

专利号:US-9938509-B2
优先权日:2010-12-08
标 题 :Biocatalysts and methods for the synthesis of armodafinil
发明人：ANG EE LUI; ALVIZO OSCAR; BEHROUZIAN BEHNAZ; CLAY MICHAEL D; COLLIER STEVEN J; EBERHARD ELLEN D; FAN FU; SONG SHIWEI; SMITH DEREK J; WIDEGREN MAGNUS; WILSON ROBERT; XU JUNYE; ZHU JUN
权利人:CODEXIS INC
摘要:The present invention relates to non-naturally occurring polypeptides useful for preparing armodafinil, polynucleotides encoding the polypeptides, and methods of using the polypeptides. The non-naturally occurring polypeptides of the present invention are effective in carrying out biocatalytic conversion of the (i) 2-(benzhydrylsulfinyl)acetamide to (−)-2-[(R)-(diphenylmethyl)sulfinyl]acetamide (armodafinil), or (ii) benzhydryl-thioacetic acid to (R)-2-(benzhydrylsulfinyl)acetic acid, which is a pivotal intermediate in the synthesis of armodafinil, in enantiomeric excess.

专利号:US-5554753-A
优先权日:1993-08-25
标 题:Catalytic enantioselective synthesis of α-amino acid derivatives by phase-transfer catalysis
发明人：O'DONNELL MARTIN J; WU SHENGDE; ESIKOVA IRENA; MI AIQIAO
权利人:INDIANA UNIVERSITY FOUNDATION
摘要:Described are improved processes for the enantioselective synthesis of α-amino acids which involve combinations of solvents, highly-mixed and low-temperature reaction conditions, and novel catalysts. Also described are novel catalysts and precursors to α-amino acid derivatives.

专利号:US-7576234-B2
优先权日:2002-05-15
标题 :Synthesis of 2-alkyl amino acids
发明人：CHORGHADE MUKUND S; GURJAR MUKUND K; MOHAPATRA DEBENDRA K
权利人:GENZYME CORP
摘要:Non-natural amino acids such as 2-alkylated amino acids allow for the synthesis of a wider variety of peptidal and non-peptidal pharmaceutically active agents. A method of preparing a 2-alkyl amino acid involves a Michael-type addition of a nucleophile to a dialkyl 2-methylidenylpropan-1,3-dioate and the conversion of a ester moiety into an amino moiety. The present invention also discloses a method of preparing a class of iron chelating agents related to desferrithiocin, all of which contain a thiazoline ring. In this method, an aryl nitrile or imidate is condensed with cysteine, a 2-alkyl cysteine, or a cysteine ester.

专利号:US-2024218014-A1
优先权日:2022-11-21
标 题:Synthesis of a cyclic peptide
发明人：BAUR PIUS BRUNO; CLEATOR EDWARD; DENIAU GILDAS; EISELE FRANK; FLÖGEL OLIVER; HUSTE ANJA; KEHL MARCEL ROMAN; LÖWENECK MARKUS; SILVA ROLANDO RAVELO; VORBERG RAFFAEL
权利人:JANSSEN PHARMACEUTICA NV
摘要:Processes for performing peptide synthesis, particularly for cyclic peptide synthesis are generally described. Reaction intermediates of the peptide synthesis are also described.

专利号:US-7414106-B2
优先权日:2003-06-19
标 题 :Synthesis of peptide α-thioesters
发明人：CAMARERO JULIO A; MITCHELL ALEXANDER R; DE YOREO JAMES J
权利人:L LIVERMORE NAT SECURITY LLC
摘要:Disclosed herein is a new method for the solid phase peptide synthesis (SPPS) of C-terminal peptide α thioesters using Fmoc/t-Bu chemistry. This method is based on the use of an aryl hydrazine linker, which is totally stable to conditions required for Fmoc-SPPS. When the peptide synthesis has been completed, activation of the linker is achieved by mild oxidation. The oxidation step converts the acyl-hydrazine group into a highly reactive acyl-diazene intermediate which reacts with an α-amino acid alkylthioester (H-AA-SR) to yield the corresponding peptide α-thioester in good yield. A variety of peptide thioesters, cyclic peptides and a fully functional Src homology 3 (SH3) protein domain have been successfully prepared.