5-(4-Bromobutoxy)-N1,N3-Di-Tert-Butylisophthalamide置于硫脲,Sodium Hydroxide,盐酸体系中,用 乙醇,水 用作溶剂,以63%的收率获得1,4-二溴丁烷 参考文献:Redox-Responsive Morphology Transformation Of Self-Assembled Nanostructures Based On Thiol-Disulfide Interconversion 标题:Redox-Responsive Morphology Transformation Of Self-Assembled Nanostructures Based On Thiol-Disulfide Interconversion 摘要:One Dimensional (1D) Nanotubes And Three Dimensional (3D) Flowerlike Supernanostructures Were Transformed Reversibly,Which Was Controlled By The Oxidation And Reduction Cycle Of Aromatic Diamide-Derived Thiol 1 And Disulfide 2,As Evidenced By Sem Study. Their Self-Assembling Patterns Were Investigated By Uv-Vis,H-1 NMR,X-Ray Crystallographic,And Powder X-Ray Diffraction Experiments. (C) 2012 Elsevier Ltd. All Rights Reserved. Doi:10.1016/j.Tetlet.2012.06.063
专利号:US-10364220-B2 优先权日:2012-12-21 标题:Synthesis of succinimides and quaternary ammonium ions for use in making molecular sieves 发明人:SCHMITT KIRK D; ZUSHMA STEPHEN; BURTON ALLEN W 权利人:EXXONMOBIL CHEMICAL PATENTS INC 摘要:The present invention relates to the synthesis of succinimides, in particular to a method for the synthesis of a succinimide compound, comprising the step of reacting an alkyne, with carbon monoxide and ammonia or an amine, in the presence of an iron catalyst, wherein the reaction is carried out in an amine liquid phase and/or in the absence of an ether solvent. The succinimides may be reduced to quaternary ammonium cations which may be used as structure directing agents in the synthesis of molecular sieves.
专利号:WO-2012047907-A9 优先权日:2010-10-04 标题 :Synthesis of c5-substituted tetracyclines, uses thereof, and intermediates thereto 发明人:MYERS ANDREW G; WRIGHT PETER M; HECKER EVAN 权利人:HARVARD COLLEGE; MYERS ANDREW G; WRIGHT PETER M; HECKER EVAN 摘要:The tetracycline class of antibiotics has played a major role in the treatment of infectious diseases for the past 50 years. However, the increased use of the tetracyclines in human and veterinary medicine has led to resistance among many organisms previously susceptible to tetracycline antibiotics. The recent development of a modular synthesis of tetracycline analogs through a chiral enone intermediate has allowed for the efficient synthesis of novel tetracycline analogs never prepared before. The present invention provides more efficient routes for preparing the enone intermediate and allows for a wide variety of substituents at position 5 of the tetracycline ring system.
专利号:US-2023183177-A1 优先权日:2020-04-24 标题:Enantioselective chemo-enzymatic synthesis of optically active amino amide compounds 发明人:GRILL BIRGIT; WINKLER MARGIT; SCHWAB HELMUT; STROHMEIER GERNOT; DONSBACH KAI; WALDVOGEL SIEGFRIED R; ARNDT SEBASTIAN; WEIS DOMINIK 权利人:PHARMAZELL GMBH 摘要:The present invention relates to a novel biocatalytic process for the stereoselective preparation of alpha amino amide compounds catalyzed by NHase enzymes. A further aspect of the invention relates to novel NHase enzymes as well as further improved NHase enzyme mutants, nucleic acid molecules encoding these enzymes, recombinant microorganisms suitable for preparing such enzymes and mutants. Another aspect of the invention relates to a chemo-biocatalytic process for the preparation of lactam compounds comprising the new catalytic process for the preparation of alpha amino amide compounds catalyzed by NHase enzymes, as well as the chemical oxidation of the alpha amino amide by applying certain chemical oxidation catalysts suitable for converting the alpha amino amide under retention of its stereochemical configuration to the respective lactam. The novel chemo-biocatalytic process is particularly suited for the synthesis of valuable pharmaceutical compounds, like in particular (S)-Levetiracetam.
专利号:US-2024207831-A1 优先权日:2022-12-08 标 题 :Molecular Sieve CIT-16P, Its Synthesis, Transformation and Use 发明人:KANG JONG HUN; ALSHAFEI FAISAL H; DAVIS MARK E 权利人:CALIFORNIA INST OF TECHN 摘要:The disclosure provides a novel silicoaluminophosphate molecular sieve, referred to as CIT-16P, that comprises a silicoaluminophosphate framework with an occluded OSDA that is DiQ-C 4 or DiQ-C 3 . The synthesis of CIT-16P, its conversion to SAPO-17, and the use of the so-derived SAPO-17 in the MTO reaction are also disclosed.
专利号:US-8907104-B2 优先权日:2006-10-11 标 题 :Synthesis of enone intermediate 发明人:MYERS ANDREW G; BRUBAKER JASON D 权利人:HARVARD COLLEGE 摘要:The tetracycline class of antibiotics has played a major role in the treatment of infectious diseases for the past 50 years. However, the increased use of the tetracyclines in human and veterinary medicine has led to resistance among many organisms previously susceptible to tetracycline antibiotics. The recent development of a modular synthesis of tetracycline analogs through a chiral enone intermediate has allowed for the efficient synthesis of novel tetracycline analogs never prepared before. The present invention provides a more efficient route for preparing the enone intermediate.
专利号:US-2022098170-A1 优先权日:2019-01-16 标 题 :Process for the synthesis of gepirone 发明人:COLOMBANO GIAMPIERO; BARBERO MAURO; GIOVENZANA GIOVANNI BATTISTA; ROLETTO JACOPO; PAISSONI PAOLO 权利人:PROCOS SPA 摘要:Disclosed is a process for the synthesis of gepirone of formula (I) from 8-(pyrimidin-2-yl)-5,8-diazaspiro[4,5]decan-5-ium bromide. The process according to the invention is economically efficient and easily industrially scalable.
参考文献:10.1107/s1600536811018538 摘要:Bayramov MR, Maharramov AM, Mehdiyeva GM, Hoseinzadeh SB, Askerov RK. 1,4-Bis[2-(prop-1-en-yl)phen-oxy]butane. Acta Crystallogr Sect E Struct Rep Online. 2011 Jun 01;67(Pt 6):o1478. 参考文献:10.3797/scipharm.1012-17 摘要:Bielenica A, Kossakowski J, Struga M, Dybała I, Loddo R, Ibba C, La Colla P. Synthesis and Biological Evaluation of New 3-Phenyl-1-[(4-arylpiperazin-1-yl)alkyl]-piperidine-2,6-diones. Sci Pharm. 2011 Apr;79(2):225–38.