79-31-2 + 79-30-1 = 97-72-3 反应条件:1.1 Catalysts: (T-4)-Dichlorobis(Triphenylphosphine)Cobalt Solvents: Dichloromethane1.1 Catalysts: (T-4)-Dichlorobis(Triphenylphosphine)Cobalt (Polymer-Supported) Solvents: Dichloromethane 标题:Preparation Of A Resin-Bound Cobalt Phosphine Complex And Assessment Of Its Use In Catalytic Oxidation And Acid Anhydride Synthesispreparation Of A Resin-Bound Cobalt Phosphine Complex And Assessment Of Its Use In Catalytic Oxidation And Acid Anhydride Synthesis 作者:Leadbeater,Nicholas E.; Et Al Leadbeater,Nicholas E.; Et Al 参考文献:Journal Of Organic Chemistry 日期:2000 卷标:65(15) 页码:4770-4772]
79-30-1 = 97-72-3 反应条件:1.1 Reagents: Triethylamine,Cerium Trichloride Solvents: Acetonitrile; 2 H,40 °C 标题:Response Surface Methodology Based On The Box-Behnken Design For Optimizing The Synthesis Of Symmetrical Anhydrides From Acid Chlorides Using Cerium (Iii) As A Homogeneous Catalyst 作者:Larba,Seif Eddine; Et Al 参考文献:Chemistryselect 日期:2023 卷标:8(28)]
= 97-72-3 [标题:Reaction Conditions 标题:Chemical Apparatus And Method For Preparing Isobutyric Anhydridepreparation Of Cyclic Nucleotides As Sting Agonistspreparation Method Of 2,2,4,4-Tetramethyl-1,3-Cyclobutanediol 参考文献:China]
= 97-72-3 反应条件:1.1 Reagents: Hydrogen Catalysts: Palladium; 4 H,20 Bar,70 °C2.1 Catalysts: Silica; 500 °C 标题:Preparation Method Of 2,2,4,4-Tetramethyl-1,3-Cyclobutanediol 参考文献:Korea]
79-31-2 = 97-72-3 反应条件:1.1 300 Mm Hg -> 80 Mm Hg,115 - 120 °C 标题:Method And Device For Preparation Of Compounds Using Isobutyric Acid And Acetic Anhydridedehydration Process For Making Isobutyric Anhydride From Isobutyric Acid And Acetic Anhydride 参考文献:China]
= 97-72-3 + 4478-63-1 反应条件:1.1 Reagents: Isobutyraldehyde,Oxygen Catalysts: 1H-Imidazole,Cobalt(2+) Salt (2:1) Solvents: Acetonitrile; 5 H,308 K 标题:Epoxidation Of Olefins With O2 And Isobutyraldehyde Catalyzed By Cobalt (Ii)-Containing Zeolitic Imidazolate Framework Material 作者:Zhang,Aiping; Et Al 参考文献:Catalysis Communications 日期:2011 卷标:12(13) 页码:1183-1187]
97-72-3 = 97-72-3 反应条件:1.1 350 °C -> 500 °C; 0.01 - 1 S,60 - 120 Torr,400 - 500 °C2.1 - 标题:Method And Device For Preparation Of Compounds Using Isobutyric Acid And Acetic Anhydride 参考文献:China]
79-31-2 + 199917-57-2 = 97-72-3 + 814-29-9 + 106937-41-1 反应条件:1.1 Solvents: Benzene 标题:Dehydration Induced By Intramolecular Redox Character Of A Stable Allylidenetributylphosphorane 作者:Kawamura,Yasuhiko; Et Al 参考文献:Tetrahedron Letters 日期:1997 卷标:38(45) 页码:7893-7896]
= 97-72-3 + 79-31-2 + 108-20-3 反应条件:1.1 Reagents: Methyl Oleate,Oxygen Catalysts: Cobalt Oxide Solvents: Acetonitrile; 6 H,1 Atm,25 °C 标题:Highly Efficient And Robust Aerobic Co-Oxidation Of Olefins And Aldehydes Over Coox Dispersed Within Hierarchical Silicalite-1 Zeolites 作者:Li,Chenhao; Et Al 参考文献:Green Chemistry 日期:2022 卷标:24(16) 页码:6200-6214]
79-31-2 = 97-72-3 反应条件:1.1 Reagents: Thionyl Chloride,Pyridine,4-Ethenyl-,Polymer With Diethenylbenzene And 1-Ethenyl-4-Ethylbenzene Solvents: Dichloromethane1.1 Reagents: Di-Tert-Butyl Dicarbonate Catalysts: Magnesium Chloride Solvents: Tetrahydrofuran; 6 H,Rt1.1 Reagents: Phosphorus Pentoxide,Sulfuric Acid; 0.5 H,20 °C; 3 H,100 °C 标题:Phase-Managed Organic Synthesis. 3. Symmetrical Anhydrides From Carboxylic Acids Via Polymer-Assisted Reactionreaction Of Dicarbonates With Carboxylic Acids Catalyzed By Weak Lewis Acids: General Method For The Synthesis Of Anhydrides And Estersmethod For Preparing Low Carbon Chain Symmetric Anhydride 作者:Fife,Wilmer K.; Et Al Bartoli,Giuseppe; Et Al 参考文献:Tetrahedron Letters 日期:1986 卷标:27(41) 页码:4937-40]
= 97-72-3 反应条件:1.1 Reagents: Potassium Carbonate Catalysts: Bromo[1,1′-Thiobis[methane]]Copper Solvents: Acetonitrile; 5 Min,Rt1.2 Solvents: Acetonitrile; 9 - 12 Min,6 Atm,43 °C; 8 H,43 °C 标题:Light-Mediated Synthesis Of Aliphatic Anhydrides By Cu-Catalyzed Carbonylation Of Alkyl Halides 作者:Tung,Pinku; Et Al 参考文献:Journal Of The American Chemical Society 日期:2023 卷标:145(17) 页码:9423-9427]
= 97-72-3 反应条件:1.1 Reagents: Trichloroisocyanuric Acid Solvents: Dichloromethane; 1 - 2 Min,Rt; Rt -> 0 °C1.2 Reagents: Triethylamine,Water; Rt 标题:Metal-Free Oxidative Self-Coupling Of Aldehydes Or Alcohols To Symmetric Carboxylic Anhydrides 作者:Gaspa,Silvia; Et Al 参考文献:Tetrahedron Letters 日期:2017 卷标:58(26) 页码:2533-2536]
79-31-2 = 97-72-3 反应条件:1.1 Catalysts: Trichloroisocyanuric Acid Solvents: Dichloromethane; 1 - 2 Min,Rt; Rt -> 0 °C1.2 0 °C1.3 Reagents: Triethylamine; 0 °C; Rt 标题:Anhydrides From Aldehydes Or Alcohols Via Oxidative Cross-Coupling 作者:Gaspa,Silvia; Et Al 参考文献:New Journal Of Chemistry 日期:2017 卷标:41(3) 页码:931-939]
79-30-1 + 14332-14-0 = 97-72-3 [标题:Reaction Conditions 标题:Product Class 4: Carboxylic Acid Anhydrides And Their Sulfur,Selenium,And Tellurium Derivatives 作者:Keller,P. A. 参考文献:Science Of Synthesis 日期:2006 页码:617-641]
14332-14-0 = 97-72-3 [标题:Reaction Conditions 标题:Product Class 4: Carboxylic Acid Anhydrides And Their Sulfur,Selenium,And Tellurium Derivatives 作者:Keller,P. A. 参考文献:Science Of Synthesis 日期:2006 页码:617-641]
97-72-3 = 97-72-3 反应条件:1.1 Reagents: Triethylamine Solvents: Chloroform 标题:Influence Of Aliphatic Amide Terminals On The Thermoresponsive Properties Of Hyperbranched Polyethylenimines 作者:Qin,Hong-Wei; Et Al 参考文献:Chinese Journal Of Polymer Science 日期:2014 卷标:32(10) 页码:1338-1347]
22288-39-7 = 97-72-3 反应条件:1.1 Reagents: Sulfuric Acid; Ph 2.5,40 °C2.1 Reagents: Acetic Anhydride; < 400 Mbar,Rt -> 120 °C 标题:Process For The Production Of Peroxyesters 参考文献:World Intellectual Property Organization]
= 97-72-3 反应条件:1.1 Reagents: Sulfuric Acid Catalysts: Naphtha (Petroleum),Hydrotreated Heavy Solvents: Water; 5 °C -> 27 °C2.1 Reagents: Acetic Anhydride; < 400 Mbar,120 °C 标题:Process For The Production Of Diacyl Peroxides 参考文献:World Intellectual Property Organization]
692-61-5 = 97-72-3 反应条件:1.1 Reagents: Sulfuric Acid; Ph 2.5,40 °C2.1 Reagents: Acetic Anhydride; < 400 Mbar,Rt -> 120 °C 标题:Process For The Production Of Peroxyesters 参考文献:World Intellectual Property Organization]
79-31-2 + 98-88-4 = 97-72-3 + 19820-59-8 + 93-97-0 反应条件:1.1 Reagents: Divinylbenzene-4-Vinylpyridine Copolymer Solvents: Dichloromethane 标题:Phase-Managed Organic Synthesis. 2. A New Polymer-Assisted Synthesis Of Acid Anhydrides 作者:Fife,Wilmer K.; Et Al 参考文献:Tetrahedron Letters 日期:1986 卷标:27(41) 页码:4933-6
专利号:US-9029547-B1 优先权日:2013-12-07 标 题 :Synthesis of 4-aryl 4-acyl piperidine, its salts and analogs using indium metal 发明人:MAJEED MUHAMMED; RAMANUJAM RAJENDRAN; NAGABHUSHANAM KALYANAM 权利人:MAJEED MUHAMMED; RAMANUJAM RAJENDRAN; NAGABHUSHANAM KALYANAM 摘要:A novel process for the synthesis of 4-aryl 4-acyl piperidine derivatives using indium metal is described. Specifically, a novel process for the synthesis of 4-acetyl 4-phenyl piperidine and its salts using indium metal is described. This divisional application is specifically drawn to compounds 4-aryl 1,4-diacyl piperidine and 1,4 diacetyl 4-phenyl piperidine.
专利号:US-2024317784-A1 优先权日:2021-07-13 标题 :Process for the synthesis of 4-((r)-2-{[6-((s)-3-methoxy-pyrrolidin-1-yl)-2-phenyl-pyrimidine-4-carbonyl]-amino}-3-phosphono-propionyl)-piperazine-1-carboxylic acid butyl ester 发明人:BLUMER NICOLE; CLAVEAU ROMAIN; FEYEN FABIAN; HALL LEANNE; HUGHES STEPHEN; REBER STEFAN 权利人:VIATRIS ASIA PACIFIC PTE LTD 摘要:The present invention relates to a process for the synthesis of 4-((R)-2-{[6-((S)-3-methoxy-pyrrolidin-1-yl)-2-phenyl-pyrimidine-4-carbonyl]-amino}-3-phosphono-propionyl)-piperazine-1-carboxylic acid butyl ester, or of a hydrochloride salt thereof; and to a crystalline form of 4-((R)-2-{[6-((S)-3-methoxy-pyrrolidin-1-yl)-2-phenyl-pyrimidine-4-carbonyl]-amino}-3-phosphono-propionyl)-piperazine-1-carboxylic acid butyl ester hydrochloride.
专利号:WO-2022208508-A1 优先权日:2021-03-31 标 题:Scalable two step synthesis of molnupiravir 发明人:DATLA ANUPAMA; NAGRE PRASHANT; TAMORE JAGDISH; PRABHU MANOJKUMAR SADANAND; TRIVIKRAM SREENATH; KADAM SACHIN VASANT; DEGAONKAR GAJANAN SUBHASH; MURALIDHARAN KRISHNA; RUPRAJ NARAIN 权利人:FERMENTA BIOTECH LTD 摘要:The present invention provides a scalable two-step synthesis of molnupiravir. The reaction sequence involves the use of commercially easily available cytidine (1), and molnupiravir is formed through direct hydroxy amination of the cytidine followed by esterification of the primary alcohol without protecting dihydroxy groups (vicinal diols) i.e. without formation of acetonide.
专利号:US-6998484-B2 优先权日:2000-10-04 标 题:Synthesis of purine locked nucleic acid analogues 发明人:KOCH TROELS; JENSEN FLEMMING REISSIG 权利人:SANTARIS PHARMA AS 摘要:The present invention relates to a new method for the synthesis of purine LNA (Locked Nucleic Acid) analogues which provides a higher overall yield. The method comprising a regioselective 9-N purine glycosylation reaction followed by a one-pot nucleophilic aromatic substitution reaction of the 6-substituent in the purine ring and simultaneous nucleophile-induced intramolecular ring closure of the C-branched carbohydrate to form novel purine LNA analogues. The novel strategy is illustrated by the synthesis of the novel compound (1S,3R,4R,7S)-7-benzyloxy-1-methanesulfonylmethyl-3-(guanin-9-yl)-2,5-dioxabicyclo[2.2.1]heptane which is easily converted into (1S,3R,4R,7S)-7-hydroxy-1-hydroxymethyl-3-((2-N-isobutyrylguanin-9-yl)-2,5-dioxabicyclo[2.2.1]heptane after isobutyryl protection of the 2-amino purine group and subsequent substitution of 1-methanesulfonyl with benzoate, debenzoylation and debenzylation.
专利号:WO-2022168106-A1 优先权日:2021-02-06 标题:Chemo-enzymatic process for synthesis of molnupiravir 发明人:DATLA ANUPAMA; NAGRE PRASHANT; TAMORE JAGDISH; PRABHU MANOJKUMAR SADANAND; TRIVIKRAM SREENATH 权利人:FERMENTA BIOTECH LTD 摘要:Disclosed herein is a process for synthesis of Molnupiravir from cytidine of using a lipase for esterification reaction. The process comprises of reacting compound of formula II with acetone in presence of sulphuric acid to obtain compound of formula III; enzymatically converting compound of Formula III to compound of Formula IV, and Hydroxyaminating Formula IV using Hydroxyl amine sulphate or hydrochloride followed by deprotection to obtain compound of formula I
专利号:WO-2023021530-A1 优先权日:2021-08-18 标题:Improved short process for synthesis of molnupiravir 发明人:DATLA ANUPAMA; NAGRE PRASHANT; TAMORE JAGDISH; PRABHU MANOJKUMAR SADANAND; TRIVIKRAM SREENATH; DEGAONKAR GAJANAN SUBHASH; WADHAVANE SACHIN GOVIND; SHIRSATH AMOL; PAWAR PRASAD 权利人:FERMENTA BIOTECH LTD 摘要:The present invention discloses an economical and improved, short process for synthesis of Molnupiravir from cytidine. The process of the present invention provides a novel intermediate N-Hydroxy Cytidine isobutyryl ester (13) which can be enzymatically converted to Molnupiravir in good yield and purity.