127913-44-4 = 86728-85-0 反应条件:1.1 Reagents: Hydrochloric Acid Solvents: Ethanol 标题:A New Practical Synthesis Of Ethyl (R)-(-)-4-Cyano-3-Hydroxybutyrate From (S)-3-Chloro-1,2-Propanediol 作者:Jiang,Chengjun; Et Al 参考文献:Letters In Organic Chemistry 日期:2012 卷标:9(7) 页码:520-521]
201027-92-1 = 86728-85-0 反应条件:1.1 Catalysts: Hydrochloric Acid; 3 H,20 °C 标题:Preparation Of Ethyl (R)-(-)-4-Cyano-3-Hydroxybutyrate 作者:Hong,Huabin; Et Al 参考文献:Zhongguo Yiyao Gongye Zazhi 日期:2009 卷标:40(7) 页码:486-487]
67843-74-7 = 86728-85-0 反应条件:1.1 Solvents: Water; 0 °C1.2 Reagents: Sulfuric Acid Solvents: Water; Ph 8; 2 H,0 °C2.1 Catalysts: Hydrochloric Acid; 3 H,20 °C 标题:Preparation Of Ethyl (R)-(-)-4-Cyano-3-Hydroxybutyrate 作者:Hong,Huabin; Et Al 参考文献:Zhongguo Yiyao Gongye Zazhi 日期:2009 卷标:40(7) 页码:486-487]
638-07-3 = 86728-85-0 + 90866-33-4 反应条件:1.1 Reagents: Glucose,Nadp,Nad,Glucose 6-Phosphate,Isopropanol,Allyl Bromide,Sodium Hydroxide,Sodium Phosphate,Magnesium Chloride Catalysts: Glucose 6-Phosphate Dehydrogenase,Hexokinase,Alcohol Dehydrogenase Solvents: Butyl Acetate,Water; 1 H,Ph 7.0,30 °C; 4 H,Ph 7.0,30 °C; 6 H,Ph 7.0,30 °C 标题:Bioconversion Of Ethyl 4-Chloro-3-Oxobutanoate By Permeabilized Fresh Brewer'S Yeast Cells In The Presence Of Allyl Bromide 作者:Yu,Ming-An; Et Al 参考文献:Journal Of Industrial Microbiology & Biotechnology 日期:2007 卷标:34(2) 页码:151-156]
638-07-3 = 86728-85-0 反应条件:1.1 Reagents: Isopropanol Catalysts: Alcohol Dehydrogenase Solvents: Butyl Acetate,Water; 72 H,Ph 7.0,30 °C 标题:Efficient Synthesis Of Optically Pure Alcohols By Asymmetric Hydrogen-Transfer Biocatalysis: Application Of Engineered Enzymes In A 2-Propanol-Water Medium 作者:Itoh,Nobuya; Et Al 参考文献:Applied Microbiology And Biotechnology 日期:2012 卷标:93(3) 页码:1075-1085]
638-07-3 = 86728-85-0 反应条件:1.1 Reagents: Glucose,Nadh Catalysts: Alcohol Dehydrogenase Solvents: Water; 17 H,Ph 6.5,30 °C 标题:Purification And Characterization Of An Nadh-Dependent Alcohol Dehydrogenase From Candida Maris For The Synthesis Of Optically Active 1-(Pyridyl)Ethanol Derivatives 作者:Kawano,Shigeru; Et Al 参考文献:Bioscience 日期:2011 卷标:75(6) 页码:1055-1060]
146864-19-9 = 86728-85-0 反应条件:1.1 Solvents: Water; 8 H,25 °C1.2 Reagents: Sulfuric Acid Solvents: Water2.1 Reagents: Hydrochloric Acid Solvents: Ethanol 标题:A New Practical Synthesis Of Ethyl (R)-(-)-4-Cyano-3-Hydroxybutyrate From (S)-3-Chloro-1,2-Propanediol 作者:Jiang,Chengjun; Et Al 参考文献:Letters In Organic Chemistry 日期:2012 卷标:9(7) 页码:520-521]
60827-45-4 = 86728-85-0 反应条件:1.1 Reagents: Thionyl Chloride Solvents: Dichloromethane; 2 H2.1 Solvents: Water; 8 H,25 °C2.2 Reagents: Sulfuric Acid Solvents: Water3.1 Reagents: Hydrochloric Acid Solvents: Ethanol 标题:A New Practical Synthesis Of Ethyl (R)-(-)-4-Cyano-3-Hydroxybutyrate From (S)-3-Chloro-1,2-Propanediol 作者:Jiang,Chengjun; Et Al 参考文献:Letters In Organic Chemistry 日期:2012 卷标:9(7) 页码:520-521]
638-07-3 = 86728-85-0 + 90866-33-4 反应条件:1.1 Solvents: Water; 72 H,28 °C1.2 Reagents: Hydrochloric Acid Solvents: Water; Acidified 标题:Diplogelasinospora Grovesii Imi 171018,A New Whole Cell Biocatalyst For The Stereoselective Reduction Of Ketones 作者:Carballeira,Jose D.; Et Al 参考文献:Tetrahedron: Asymmetry 日期:2004 卷标:15(6) 页码:951-962]
638-07-3 = 86728-85-0 + 90866-33-4 反应条件:1.1 Reagents: Glucose,Nadp,Sodium Carbonate Catalysts: Copper; Ph 7,30 °C 标题:Highly Efficient Synthesis Of Pharmaceutically Relevant Chiral 3-N-Substituted-Azacyclic Alcohols Using Two Enantiocomplementary Short Chain Dehydrogenases 作者:Yang,Lin; Et Al 参考文献:Biochemical Engineering Journal 日期:2022 卷标:178]
(R)-6-(3-Chloro-2-Hydroxypropyl)-1,3-Dioxin-4-Ones置于二甲基硫,臭氧体系中,化学反应生成 S(-)-4-氯-3-羟基丁酸乙酯 参考文献:Lipase-Catalyzed Asymmetric Synthesis Of 6-(3-Chloro-2-Hydroxypropyl)-1,3-Dioxin-4-Ones And Their Conversion To Chiral 5,6-Epoxyhexanoates 标题:Lipase-Catalyzed Asymmetric Synthesis Of 6-(3-Chloro-2-Hydroxypropyl)-1,3-Dioxin-4-Ones And Their Conversion To Chiral 5,6-Epoxyhexanoates 摘要:Highly Enantioselective Syntheses Of (R)-And (S)-6-(3-Chloro-2-Hydroxypropyl)-1,3-Dioxin-4-Ones By Means Of Lipase-Catalyzed Kinetic Resolutions Are Described. Chiral Dioxinones Thus Obtained Have Been Converted To Optically Active 5,6-Epoxyhexanoates,Which Are Important Precursors For A Series Of Biologically Active Compounds. DOI:10.1016/s0957-4166(00)82114-X
专利号:US-8269001-B2 优先权日:2005-10-05 标题 :Process for the synthesis of HMG-CoA reductase inhibitors 发明人:CASAR ZDENKO 权利人:CASAR ZDENKO; LEK PHARMACEUTICALS 摘要:A novel synthesis of statins uses Wittig reaction of a heterocyclic core of statin with a lactonized side chain already possessing needed stereochemistry. Any separation of diastereoisomers is performed early in the course of synthesis.
专利号:US-6384228-B2 优先权日:1998-05-26 标题 :Method for synthesis of halopyridyl-azacyclopentane derivative and intermediate thereof 发明人:NODE MANABU; NAKAMURA DAISAKU; FUJIWARA TOSHIO; ICHIHASHI SHOGO 权利人:NIHON MEDIPHYSICS CO LTD 摘要:The present invention relates to a method for synthesis of an optically active halopyridyl-azacyclo-pentane derivative and the intermediate thereof which comprises preparing an optically active allene-1,3-dicarboxylic acid ester derivative from an optically active acetonedicarboxylic acid ester derivative and then proceeding through a 7-azabicyclo[2.2.1]heptane derivative to obtain the objective product.
专利号:WO-2014075447-A1 优先权日:2012-11-19 标 题:Biological preparation method of ethyl (r)-4-cyano-hydroxybutanoate 发明人:TAO JUNHUA; LI BIN; TANG YUANYUAN; YIN JIANGLAI; JU XIN 权利人:ENZYMEWORKS INC 摘要:A biological preparation method of ethyl (R)-4-cyano-hydroxybutanoate. The reaction system of enzymatic synthesis of ethyl (S)-4-chloro-3-hydroxybutanoate is properly treated, and recombinant halohydrin dehalogenase is subsequently added. Under the effect of recombinant halohydrin dehalogenase, ethyl (S)-4-chloro-3-hydroxybutanoate reacts with sodium cyanide to give a target product ethyl (R)-4-cyano-hydroxybutanoate, and the reaction takes place in an aqueous phase of pH 6-8. Ethyl (S)-4-chloro-3-hydroxybutanoate is prepared by asymmetric reduction reaction of ethyl 4-chloro-3-oxobutanoate under the presence of recombinant ketoreductase enzyme, a cofactor and a hydrogen donor, the hydrogen donor is isopropanol, and the asymmetric reduction reaction takes place in a mixed system of an aqueous phase buffer solution of pH 7.0-9.0 and toluene. In the present invention, the two reactions can share one reaction system, which can reduce the material and energy consumption, effectively reduce the cost, solve the problem of high material and energy consumption of a single-step enzyme method, and solve the problem of a coupled enzyme method that the product cannot be produced effectively due to mutual interference.
专利号:US-2002010339-A1 优先权日:1998-05-26 标 题:Method for synthesis of halopyridyl-acyclopentane derivative and intermediate thereof
专利号:US-2008300406-A1 优先权日:2005-10-05 标 题 :Process for the Synthesis of Hmg-Coa Reductase Inhibitors
专利号:CN-105567655-A 优先权日:2014-10-14 标 题:A kind of halohydrin dehalogenase and its application in the synthesis of intermediates of statins