This invention provides a process for preparing the hypocholesterolemic compound (I) comprising: (a) reacting p-fluorobenzoylbutyric acid with pivaloyl chloride and acylating the product with a chiral auxiliary to obtain a ketone of formula (IV); (b) reducing the ketone of formula (IV) in ...
4-Acetoxyazetidinoneis a key intermediate in the synthesis of(carbon) penems antibiotics. 4-乙酰氧基氮杂环丁酮是合成(碳)青霉烯类抗生素的关键中间体,对该中间体现有的合成方法进行了归纳比较,总结了各自存在的优缺点,为进一步研究开发氮杂环丁酮的合成工艺提供依据。
Eco-friendly synthesis of 2-azetidinone analogs of isonicotinic acid hydrazide. Green Chem Lett Rev, 2010; 3(4): 293-300.Thomas A B,Paradkar O,Nanda R K, et al.Eco-friendly synthesis of2-azetidinone analogs of isonicotinic acid hydrazide. Green Chem. Lett. Rev . 2010...
Synthesis, Molecular Packing, Luminescent Properties of Quinacridone Derivatives; 喹吖啶酮衍生物的合成、分子堆积结构及发光性能研究 更多例句>> 3) acridone ['ækrədəun] 吖啶酮 1. Visible Light Photosensitizers ——Synthesis of N-Alkylthioacridones; 可见光光敏剂——N-烷基硫代吖啶酮的合成...
ChemInform Abstract: Synthesis of Optically Pure 4-Hydroxymethyl-3-phenoxy-2-azetidinone (VIII) from D-Glucal (I)azetidine derivativesring closure reactionsdiastereoselective syntheses, enantioselective syntheses (incl. cis/trans‐isomerism)ChemInform is a weekly Abstracting Service, delivering concise ...
Enantioselective Synthesis of α,α-Difluoro-β-amino Acid and 3,3-Difluoroazetidin-2-one via the Reformatsky-Type Reaction of Ethyl Bromodifluoroacetate w... Chiral oxazolidines 2a−e can be diastereoselectively alkylated with BrCF2CO2Et to furnish 3,3-difluoroazetidin-2-ones 3a−e with...
ChemInform abstract: an efficient synthesis of 4‐ benzoyloxyazetidinone: an important carbapenem intermediate. Chem. 1988;29:2779‐2782.D. M. Tsehaen,L. M. Fuentes,J. E. Lynch,et al.A Efficient Synthesis of 4-Benzoxyazotidinone: An Important Carbapenem Intermediate. Tetrahedron Letters . ...
Synthesis of Some Biologically Active Pyrazole, Thiazolidinone, and Azetidinone Derivatives[J]. Chemistry of Heterocyclic Compounds . 2004... RB Pawar,VV Mulwad - 《Cheminform》 被引量: 48发表: 2004年 ChemInform Abstract: 2-Azetidinone Derivatives: Design, Synthesis and Evaluation of Cholesterol ...
Synthesis And Comparison Of Biological Activities Of Azetidinone, Thiazolidinone And Related Compounds R. Govindarajan, / T. Beena, / A.R. Bhat†, Citation Information: Heterocyclic Communications. Volume 9, Issue 3, Pages 259–264, ISSN (Online) 2191-0197, ISSN (Print) 0793-0283, DOI...
ChemInform Abstract: Synthesis of Azetidin-3-ones. Structure of N-Tosyl-2-ethylazetidin-3oneheterocyclic 4-membered ringsA general method for the preparation of arylsulfonylazetidinones (II) from the diazo ketones (I) is described.doi:10.1002/chin.198746173...