1
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Simple and Expedient Access to Novel Fluorinated Thiazolo- and Oxazolo[3,2-a]pyrimidin-7-one Derivatives and Their Functionalization via Palladium-Catalyzed Reactions. Molecules 2022; 27:molecules27093013. [PMID: 35566366 PMCID: PMC9100779 DOI: 10.3390/molecules27093013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 05/02/2022] [Accepted: 05/05/2022] [Indexed: 12/04/2022] Open
Abstract
An efficient, versatile, and one-pot method for the preparation of novel fluorinated thiazolo- and oxazolo[3,2-a]pyrimidin-7-ones is described from 2-aminothiazoles or 2-amino-oxazoles and fluorinated alkynoates. This transformation, performed under transition-metal-free conditions, offers new fluorinated cyclized products with good to excellent yields. Moreover, the functionalization of these N-fused scaffolds via the Suzuki-Miyaura and Sonogashira cross-coupling reactions led to the synthesis of highly diverse thiazolo- and oxazolo[3,2-a]pyrimidin-7-ones.
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2
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Li S, Sun S, Wang J. Catalytic Asymmetric Homologation of 4‐Substituted Cyclohexanones with CF
3
CHN
2
: Enantioselective Synthesis of α
‐
Trifluoromethyl Cycloheptanones. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202115098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Shu‐Sen Li
- Beijing National Laboratory of Molecular Sciences (BNLMS) Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education College of Chemistry Peking University Beijing 100871 China
| | - Shuo Sun
- Beijing National Laboratory of Molecular Sciences (BNLMS) Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education College of Chemistry Peking University Beijing 100871 China
| | - Jianbo Wang
- Beijing National Laboratory of Molecular Sciences (BNLMS) Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education College of Chemistry Peking University Beijing 100871 China
- The State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai 200032 China
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3
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Expanding 1,2,4-triketone toolbox for use as fluorinated building blocks in the synthesis of pyrazoles, pyridazinones and β-diketohydrazones. J Fluor Chem 2022. [DOI: 10.1016/j.jfluchem.2021.109932] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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4
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Kumar A, Khan WA, Ahamad S, Mohanan K. Trifluorodiazoethane: A versatile building block to access trifluoromethylated heterocycles. J Heterocycl Chem 2021. [DOI: 10.1002/jhet.4416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Anuj Kumar
- Medicinal and Process Chemistry Division CSIR‐Central Drug Research Institute Lucknow India
| | | | - Shakir Ahamad
- Department of Chemistry Aligarh Muslim University Aligarh India
| | - Kishor Mohanan
- Medicinal and Process Chemistry Division CSIR‐Central Drug Research Institute Lucknow India
- Medicinal and Process Chemistry Division Academy of Scientific and Innovative Research Ghaziabad India
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5
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Li SS, Sun S, Wang J. Catalytic Asymmetric Homologation of 4-Substituted Cyclohexanones with CF 3 CHN 2 : Enantioselective Synthesis of α-Trifluoromethyl Cycloheptanones. Angew Chem Int Ed Engl 2021; 61:e202115098. [PMID: 34939732 DOI: 10.1002/anie.202115098] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Indexed: 01/09/2023]
Abstract
Introduction of the trifluoromethyl group (CF3 ) into organic molecules in an enantioselective manner has attracted significant attention, but still remains a challenging problem. We herein report a catalytic asymmetric trifluoromethylation of cyclic ketones via a ScIII /chiral bisoxazoline-catalyzed homologation reaction by employing 2,2,2-trifluorodiazoethane (CF3 CHN2 ) as the CF3 source. This desymmetrization process is highly efficient and generates two chiral centers with excellent diastereoselectivity and enantioselectivity, affording chiral α-trifluoromethyl cyclic ketones in a straightforward manner.
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Affiliation(s)
- Shu-Sen Li
- Beijing National Laboratory of Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing, 100871, China
| | - Shuo Sun
- Beijing National Laboratory of Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing, 100871, China
| | - Jianbo Wang
- Beijing National Laboratory of Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing, 100871, China.,The State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 200032, China
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6
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Trofymchuk S, Bugera M, Klipkov AA, Ahunovych V, Razhyk B, Semenov S, Boretskyi A, Tarasenko K, Mykhailiuk PK. Scalable Approach to Fluorinated Heterocycles with Sulfur Tetrafluoride (SF 4). J Org Chem 2021; 86:12181-12198. [PMID: 34424702 DOI: 10.1021/acs.joc.1c01518] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A general approach to fluorinated (hetero)aromatic derivatives is elaborated. The key reaction is a deoxofluorination of substituted acetophenones with sulfur tetrafluoride (SF4). In contrast to previous deoxofluorination methods, this transformation is fast, scalable (up to 70 g), and high-yielding. More than 100 novel or previously hardly accessible fluorinated heterocycles, interesting for medicinal chemistry and agrochemistry, were synthesized.
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Affiliation(s)
- Serhii Trofymchuk
- Enamine Ltd., Chervonotkatska 78, 02094 Kyiv, Ukraine.,Institute of Organic Chemistry, NAS of Ukraine, Murmanska 5, 02094 Kyiv, Ukraine
| | - Maksym Bugera
- Enamine Ltd., Chervonotkatska 78, 02094 Kyiv, Ukraine.,V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry, NAS of Ukraine, Murmanska 1, 02094 Kyiv, Ukraine
| | - Anton A Klipkov
- Enamine Ltd., Chervonotkatska 78, 02094 Kyiv, Ukraine.,V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry, NAS of Ukraine, Murmanska 1, 02094 Kyiv, Ukraine
| | - Volodymyr Ahunovych
- Enamine Ltd., Chervonotkatska 78, 02094 Kyiv, Ukraine.,V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry, NAS of Ukraine, Murmanska 1, 02094 Kyiv, Ukraine
| | - Bohdan Razhyk
- Enamine Ltd., Chervonotkatska 78, 02094 Kyiv, Ukraine
| | | | | | - Karen Tarasenko
- V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry, NAS of Ukraine, Murmanska 1, 02094 Kyiv, Ukraine.,Chemspace LLC, 85 Chervonotkatska Street, Suite 1, 02094 Kyiv, Ukraine
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7
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Affiliation(s)
- Pavel K. Mykhailiuk
- Enamine Ltd., Chervonotkatska 78, 02094 Kyiv, Ukraine
- Chemistry Department, Taras Shevchenko National University of Kyiv, Volodymyrska 64, 01601 Kyiv, Ukraine
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8
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Affiliation(s)
- Pavel K. Mykhailiuk
- Enamine Ltd., Chervonotkatska 78, 02094 Kyiv, Ukraine
- Chemistry Department, Taras Shevchenko National University of Kyiv, Volodymyrska 64, 01601 Kyiv, Ukraine
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9
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Trofymchuk S, Bugera MY, Klipkov AA, Razhyk B, Semenov S, Tarasenko K, Starova VS, Zaporozhets OA, Tananaiko OY, Alekseenko AN, Pustovit Y, Kiriakov O, Gerus II, Tolmachev AA, Mykhailiuk PK. Deoxofluorination of (Hetero)aromatic Acids. J Org Chem 2020; 85:3110-3124. [PMID: 31928000 DOI: 10.1021/acs.joc.9b03011] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Diverse trifluoromethyl-substituted compounds were synthesized by deoxofluorination of cinnamic and (hetero)aromatic carboxylic acids with sulfur tetrafluoride. The obtained products were used as starting materials in the preparation of novel fluorinated amino acids, anilines, and aliphatic amines - valuable building blocks for medicinal chemistry and agrochemistry.
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Affiliation(s)
| | - Maksym Ya Bugera
- Enamine Ltd., Chervonotkatska 78, Kyiv 02094, Ukraine.,V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry NAS of Ukraine, Murmanskaya 1, Kyiv 02094, Ukraine
| | - Anton A Klipkov
- Enamine Ltd., Chervonotkatska 78, Kyiv 02094, Ukraine.,V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry NAS of Ukraine, Murmanskaya 1, Kyiv 02094, Ukraine
| | - Bohdan Razhyk
- Enamine Ltd., Chervonotkatska 78, Kyiv 02094, Ukraine
| | | | - Karen Tarasenko
- V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry NAS of Ukraine, Murmanskaya 1, Kyiv 02094, Ukraine.,UkrOrgSyntez Ltd. (UORSY), 29 Schorsa Street, Kyiv 01133, Ukraine
| | - Viktoriia S Starova
- Chemistry Department, Taras Shevchenko National University of Kyiv, Volodymyrska 64, Kyiv 01601, Ukraine
| | - Olga A Zaporozhets
- Chemistry Department, Taras Shevchenko National University of Kyiv, Volodymyrska 64, Kyiv 01601, Ukraine
| | - Oksana Yu Tananaiko
- Chemistry Department, Taras Shevchenko National University of Kyiv, Volodymyrska 64, Kyiv 01601, Ukraine
| | | | - Yurii Pustovit
- Institute of Organic Chemistry NAS of Ukraine, Murmanskaya 5, Kyiv 02094, Ukraine
| | | | - Igor I Gerus
- V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry NAS of Ukraine, Murmanskaya 1, Kyiv 02094, Ukraine
| | - Andrei A Tolmachev
- Enamine Ltd., Chervonotkatska 78, Kyiv 02094, Ukraine.,Chemistry Department, Taras Shevchenko National University of Kyiv, Volodymyrska 64, Kyiv 01601, Ukraine
| | - Pavel K Mykhailiuk
- Enamine Ltd., Chervonotkatska 78, Kyiv 02094, Ukraine.,Chemistry Department, Taras Shevchenko National University of Kyiv, Volodymyrska 64, Kyiv 01601, Ukraine
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10
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Mykhailiuk PK, Koenigs RM. Diazoacetonitrile (N 2 CHCN): A Long Forgotten but Valuable Reagent for Organic Synthesis. Chemistry 2019; 26:89-101. [PMID: 31415714 PMCID: PMC6973033 DOI: 10.1002/chem.201903335] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Indexed: 12/18/2022]
Abstract
Diazoacetonitrile (N2CHCN) is a small reactive diazoalkane. It has been synthesized for the first time already in 1898 by Theodor Curtius, however, did not gain much recognition in organic synthesis until recently. Only in 2015, after introduction of in situ and flow protocols for the safe generation of diazoacetonitrile, it started gaining popularity. In this minireview, the synthetic properties and applications of this valuable reagent are discussed.
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Affiliation(s)
- Pavel K Mykhailiuk
- Enamine Ltd., Chervonotkatska 78, 02094, Kyiv, Ukraine.,Chemistry Department, Taras Shevchenko National University of Kyiv, Volodymyrska 64, 01601, Kyiv, Ukraine
| | - Rene M Koenigs
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
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11
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Zhang G, Fan Q, Zhao Y, Ding C. Copper-Promoted Oxidative Intramolecular C-H Amination of Hydrazones to Synthesize 1H
-Indazoles and 1H
-Pyrazoles Using a Cleavable Directing Group. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900947] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Guofu Zhang
- College of Chemical Engineering; Zhejiang University of Technology; 310014 Hangzhou P. R. China
| | - Qiankun Fan
- College of Chemical Engineering; Zhejiang University of Technology; 310014 Hangzhou P. R. China
| | - Yiyong Zhao
- College of Chemical Engineering; Zhejiang University of Technology; 310014 Hangzhou P. R. China
| | - Chengrong Ding
- College of Chemical Engineering; Zhejiang University of Technology; 310014 Hangzhou P. R. China
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12
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Yagupolskii YL, Pavlenko NV, Gerus II, Peng S, Nappa M. 1,1,1,4,4,4‐Hexafluorobut‐2‐yne (HFB) as a Versatile Dipolarophile for [3+2] Cycloaddition with 1,3‐Dipoles toward Azoles with Adjacent CF
3
Groups. ChemistrySelect 2019. [DOI: 10.1002/slct.201900387] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yurii L. Yagupolskii
- Institute of Organic ChemistryNational Academy of Sciences of Ukraine Murmanska St. 5 Kiev 02660 Ukraine
| | - Natalia V. Pavlenko
- Institute of Organic ChemistryNational Academy of Sciences of Ukraine Murmanska St. 5 Kiev 02660 Ukraine
| | - Igor I. Gerus
- Institute of Bioorganic Chemistry and PetrochemistryNational Academy of Sciences of Ukraine Murmanska St. 1 Kiev 02660 Ukraine
| | - Sheng Peng
- The Chemours Company Experimental Station. Bldg. 262 Wilmington, De 19880 United States
| | - Mario Nappa
- The Chemours Company Experimental Station. Bldg. 262 Wilmington, De 19880 United States
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13
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Mohamady S, Kralt B, Samwel SK, Taylor SD. Efficient One-Pot, Two-Component Modular Synthesis of 3,5-Disubstituted Pyrazoles. ACS OMEGA 2018; 3:15566-15574. [PMID: 31458212 PMCID: PMC6643981 DOI: 10.1021/acsomega.8b02304] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Accepted: 11/06/2018] [Indexed: 06/10/2023]
Abstract
The pyrazole scaffold is one of the most prevalent and important tool in medicinal chemistry. Here, we report a method for preparing 3,5-diarylpyrazoles in good to excellent yield by reacting hydrazones of aryl aldehydes with substituted acetophenones in ethanol in the presence of dimethyl sulfoxide/cat. I2/cat. HCl. The reverse process, reacting hydrazones of substituted acetophenones with aryl aldehydes under the same conditions, also provides 3,5-diarylpyrazoles in good to excellent yields. Reaction of hydrazones of aldehydes with 2'-aryloxy ketones in the presence of cat. HCl in ethanol and the catalyst-free reaction of phenacyl bromides with hydrazones of aldehydes in ethanol also gave good to excellent yields of 3,5-diarylpyrazoles.
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Affiliation(s)
- Samy Mohamady
- Faculty
of Pharmacy, The British University in Egypt, Cairo-Suez Desert Road, Al-Sherouk 11837, Cairo, Egypt
| | - Braden Kralt
- Department
of Chemistry, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, Canada N2L 3G1
| | - Shery K. Samwel
- Faculty
of Pharmacy, The British University in Egypt, Cairo-Suez Desert Road, Al-Sherouk 11837, Cairo, Egypt
| | - Scott D. Taylor
- Department
of Chemistry, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, Canada N2L 3G1
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14
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Herrera AG, Schmitt E, Panossian A, Vors JP, Pazenok S, Leroux FR. New synthetic access to 3-fluoroalkyl-5-pyrazolecarboxylates and carboxylic acids. J Fluor Chem 2018. [DOI: 10.1016/j.jfluchem.2018.07.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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15
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Levchenko V, Dmytriv YV, Tymtsunik AV, Liubchak K, Rudnichenko A, Melnyk AV, Veselovych SY, Borodulin YV, Otsalyuk OM, Tolmachev AA, Mykhailiuk PK. Preparation of 5-Fluoropyrazoles from Pyrazoles and N-Fluorobenzenesulfonimide (NFSI). J Org Chem 2018; 83:3265-3274. [DOI: 10.1021/acs.joc.8b00199] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Vitalina Levchenko
- Enamine Ltd., Chervonotkatska 78, Kyiv 02094, Ukraine (www.enamine.net;
www.mykhailiukchem.org)
| | - Yurii V. Dmytriv
- Enamine Ltd., Chervonotkatska 78, Kyiv 02094, Ukraine (www.enamine.net;
www.mykhailiukchem.org)
- Department of Chemical Technology, National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, Prosp. Peremohy 37, Kyiv 03056, Ukraine
| | - Andriy V. Tymtsunik
- Enamine Ltd., Chervonotkatska 78, Kyiv 02094, Ukraine (www.enamine.net;
www.mykhailiukchem.org)
- Department of Chemical Technology, National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, Prosp. Peremohy 37, Kyiv 03056, Ukraine
| | - Konstantin Liubchak
- Enamine Ltd., Chervonotkatska 78, Kyiv 02094, Ukraine (www.enamine.net;
www.mykhailiukchem.org)
| | - Alexander Rudnichenko
- Enamine Ltd., Chervonotkatska 78, Kyiv 02094, Ukraine (www.enamine.net;
www.mykhailiukchem.org)
- Department of Chemistry, National Taras Shevchenko University of Kyiv, Volodymyrska 64, Kyiv 01033, Ukraine
| | - Anton V. Melnyk
- Enamine Ltd., Chervonotkatska 78, Kyiv 02094, Ukraine (www.enamine.net;
www.mykhailiukchem.org)
| | - Stanislav Y. Veselovych
- Enamine Ltd., Chervonotkatska 78, Kyiv 02094, Ukraine (www.enamine.net;
www.mykhailiukchem.org)
| | - Yurii V. Borodulin
- Enamine Ltd., Chervonotkatska 78, Kyiv 02094, Ukraine (www.enamine.net;
www.mykhailiukchem.org)
| | - Oleksandr M. Otsalyuk
- Enamine Ltd., Chervonotkatska 78, Kyiv 02094, Ukraine (www.enamine.net;
www.mykhailiukchem.org)
| | - Andrei A. Tolmachev
- Enamine Ltd., Chervonotkatska 78, Kyiv 02094, Ukraine (www.enamine.net;
www.mykhailiukchem.org)
- Department of Chemistry, National Taras Shevchenko University of Kyiv, Volodymyrska 64, Kyiv 01033, Ukraine
| | - Pavel K. Mykhailiuk
- Enamine Ltd., Chervonotkatska 78, Kyiv 02094, Ukraine (www.enamine.net;
www.mykhailiukchem.org)
- Department of Chemistry, National Taras Shevchenko University of Kyiv, Volodymyrska 64, Kyiv 01033, Ukraine
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16
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Zhang XW, Hu WL, Chen S, Hu XG. Cu-Catalyzed Synthesis of Fluoroalkylated Isoxazoles from Commercially Available Amines and Alkynes. Org Lett 2018; 20:860-863. [DOI: 10.1021/acs.orglett.7b04028] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Xiao-Wei Zhang
- National Engineering Research Center
for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang, 330022, China
| | - Wen-Li Hu
- National Engineering Research Center
for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang, 330022, China
| | - Suo Chen
- National Engineering Research Center
for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang, 330022, China
| | - Xiang-Guo Hu
- National Engineering Research Center
for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang, 330022, China
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17
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Lebed PS, Fenneteau J, Wu Y, Cossy J, Mykhailiuk PK. Synthesis of N
-Nitroso CHF2
-Pyrazolines and Their Transformation into CHF2
-Isoxazolines and -Pyrazoles. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700803] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Pavlo S. Lebed
- Department of Chemistry; Taras Shevchenko National University of Kyiv; Volodymyrska 64 01601 Kyiv Ukraine
- Enamine Ltd.; Chervonotkatska 78 02094 Kyiv Ukraine
- ChemBioCenter; Taras Shevchenko National University of Kyiv; Volodymyrska 64 01601 Kyiv Ukraine
| | - Johan Fenneteau
- Laboratoire de Chimie Organique; Institute of Chemistry; Biology and Innovation (CBI) UMR; 8281 ESPCI Paris; PSL Research University; 10 rue Vauquelin 75231 Paris Cedex 05 France
| | - Yong Wu
- Key Laboratory of Drug-Targeting of Education Ministry and Department of Medicinal Chemistry; West China School of Pharmacy; Sichuan University; 610041 Chengdu China
| | - Janine Cossy
- Laboratoire de Chimie Organique; Institute of Chemistry; Biology and Innovation (CBI) UMR; 8281 ESPCI Paris; PSL Research University; 10 rue Vauquelin 75231 Paris Cedex 05 France
| | - Pavel K. Mykhailiuk
- Department of Chemistry; Taras Shevchenko National University of Kyiv; Volodymyrska 64 01601 Kyiv Ukraine
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18
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Britton J, Jamison TF. A Unified Continuous Flow Assembly-Line Synthesis of Highly Substituted Pyrazoles and Pyrazolines. Angew Chem Int Ed Engl 2017; 56:8823-8827. [PMID: 28544160 PMCID: PMC6990874 DOI: 10.1002/anie.201704529] [Citation(s) in RCA: 108] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Indexed: 12/02/2022]
Abstract
A rapid and modular continuous flow synthesis of highly functionalized fluorinated pyrazoles and pyrazolines has been developed. Flowing fluorinated amines through sequential reactor coils mediates diazoalkane formation and [3+2] cycloaddition to generate more than 30 azoles in a telescoped fashion. Pyrazole cores are then sequentially modified through additional reactor modules performing N-alkylation and arylation, deprotection, and amidation to install broad molecular diversity in short order. Continuous flow synthesis enables the safe handling of diazoalkanes at elevated temperatures, and the use of aryl alkyne dipolarphiles under catalyst free conditions. This assembly line synthesis provides a flexible approach for the synthesis of agrochemicals and pharmaceuticals, as demonstrated by a four-step, telescoped synthesis of measles therapeutic, AS-136A, in a total residence time of 31.7 min (1.76 g h-1).
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Affiliation(s)
- Joshua Britton
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA, 02139, USA
| | - Timothy F Jamison
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA, 02139, USA
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19
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Britton J, Jamison TF. A Unified Continuous Flow Assembly-Line Synthesis of Highly Substituted Pyrazoles and Pyrazolines. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201704529] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Joshua Britton
- Department of Chemistry; Massachusetts Institute of Technology; 77 Massachusetts Ave. Cambridge MA 02139 USA
| | - Timothy F. Jamison
- Department of Chemistry; Massachusetts Institute of Technology; 77 Massachusetts Ave. Cambridge MA 02139 USA
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20
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Feraldi-Xypolia A, Fredj G, Tran G, Tsuchiya T, Vors JP, Mykhailiuk P, Gomez Pardo D, Cossy J. Synthesis of Functionalized 4-Fluoropyridazines. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700216] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Alexandra Feraldi-Xypolia
- Laboratoire de Chimie Organique; Institute of Chemistry, Biology and Innovation (CBI), CNRS UMR 8231, ESPCI Paris; PSL Research University; 10 rue Vauquelin 75231- Paris Cedex 05 France
| | - Gregory Fredj
- Laboratoire de Chimie Organique; Institute of Chemistry, Biology and Innovation (CBI), CNRS UMR 8231, ESPCI Paris; PSL Research University; 10 rue Vauquelin 75231- Paris Cedex 05 France
| | - Gaël Tran
- Laboratoire de Chimie Organique; Institute of Chemistry, Biology and Innovation (CBI), CNRS UMR 8231, ESPCI Paris; PSL Research University; 10 rue Vauquelin 75231- Paris Cedex 05 France
| | - Tomoki Tsuchiya
- Bayer S.A.S., Small Molecule Research-Disease, Control Chemistry; 14 Impasse Pierre Baizet 69263 Lyon Cedex 09 France
| | - Jean-Pierre Vors
- Bayer S.A.S., Small Molecule Research-Disease, Control Chemistry; 14 Impasse Pierre Baizet 69263 Lyon Cedex 09 France
| | - Pavel Mykhailiuk
- Laboratoire de Chimie Organique; Institute of Chemistry, Biology and Innovation (CBI), CNRS UMR 8231, ESPCI Paris; PSL Research University; 10 rue Vauquelin 75231- Paris Cedex 05 France
- Organic Chemistry Department; Taras Shevchenko National University of Kyiv; Volodymyrska 64 01601 Kyiv Ukraine
- Enamine Ltd.; Matrosova 23 01103 Kyiv Ukraine
| | - Domingo Gomez Pardo
- Laboratoire de Chimie Organique; Institute of Chemistry, Biology and Innovation (CBI), CNRS UMR 8231, ESPCI Paris; PSL Research University; 10 rue Vauquelin 75231- Paris Cedex 05 France
| | - Janine Cossy
- Laboratoire de Chimie Organique; Institute of Chemistry, Biology and Innovation (CBI), CNRS UMR 8231, ESPCI Paris; PSL Research University; 10 rue Vauquelin 75231- Paris Cedex 05 France
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21
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Shishlyk OS, Shcherbatiuk AV, Iminov RT, Tverdokhlebov AV, Tolmachev AA, Mykhailiuk PK, Biitseva AV. Synthesis of fluorinated oxazoles by oxidative cyclization of fluorinated enamides. J Fluor Chem 2017. [DOI: 10.1016/j.jfluchem.2016.09.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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22
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Prieto A, Bouyssi D, Monteiro N. Ruthenium-Catalyzed Tandem C-H Fluoromethylation/Cyclization of N-Alkylhydrazones with CBr 3F: Access to 4-Fluoropyrazoles. J Org Chem 2017; 82:3311-3316. [PMID: 28263600 DOI: 10.1021/acs.joc.7b00085] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
4-Fluoropyrazoles are accessible in a single step from readily available aldehyde-derived N-alkylhydrazones through double C-H fluoroalkylation with tribromofluoromethane (CBr3F). RuCl2(PPh3)3 has been proven to be the most efficient catalyst for this transformation when compared to a range of other Cu-, Pd-, or Fe-based catalyst systems.
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Affiliation(s)
- Alexis Prieto
- Univ Lyon, Université Claude Bernard Lyon 1, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires (ICBMS, CNRS UMR 5246), F-69622 Villeurbanne, France
| | - Didier Bouyssi
- Univ Lyon, Université Claude Bernard Lyon 1, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires (ICBMS, CNRS UMR 5246), F-69622 Villeurbanne, France
| | - Nuno Monteiro
- Univ Lyon, Université Claude Bernard Lyon 1, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires (ICBMS, CNRS UMR 5246), F-69622 Villeurbanne, France
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23
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Mykhailiuk PK. Heptafluoroisopropyl diazomethane (i-C3F7CHN2): in situ generation and synthesis of pyrazoles. Org Biomol Chem 2017; 15:7296-7301. [DOI: 10.1039/c7ob01579h] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel chemical reagent, heptafluoroisopropyl diazomethane (i-C3F7CHN2), has been generated in situ in aqueous media. It reacts with electron-deficient alkynes towards polyfluorinated pyrazoles that are important in agrochemistry.
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Affiliation(s)
- Pavel K. Mykhailiuk
- Taras Shevchenko National University of Kyiv
- Chemistry Department
- 01601 Kyiv
- Ukraine
- Enamine Ltd
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24
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Mykhailiuk PK, Ishchenko AY, Stepanenko V, Cossy J. Synthesis of Fluoroalkyl Pyrazoles from In-Situ-Generated C2F5CHN2and Electron-Deficient Alkenes. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600947] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Pavel K. Mykhailiuk
- Enamine Ltd.; 78 Chervonotkatska str. 02094 Kyiv Ukraine
- Department of Chemistry; Taras Shevchenko National University of Kyiv; Volodymyrska Street, 64 01601 Kyiv Ukraine
- Laboratoire de Chimie Organique; Institute of Chemistry, Biology, and Innovation (CBI); UMR 8231; ESPCI ParisTech / CNRS / PSL Research University; 10 rue Vauquelin 75231 Paris CEDEX 05 France
| | - Aleksandr Yu. Ishchenko
- Department of Chemistry; Taras Shevchenko National University of Kyiv; Volodymyrska Street, 64 01601 Kyiv Ukraine
| | - Viatcheslav Stepanenko
- Department of Chemistry; Taras Shevchenko National University of Kyiv; Volodymyrska Street, 64 01601 Kyiv Ukraine
| | - Janine Cossy
- Laboratoire de Chimie Organique; Institute of Chemistry, Biology, and Innovation (CBI); UMR 8231; ESPCI ParisTech / CNRS / PSL Research University; 10 rue Vauquelin 75231 Paris CEDEX 05 France
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25
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Arkhipov AV, Arkhipov VV, Cossy J, Kovtunenko VO, Mykhailiuk PK. Unexpected Reactivity of Trifluoromethyl Diazomethane (CF3CHN2): Electrophilicity of the Terminal N-Atom. Org Lett 2016; 18:3406-9. [DOI: 10.1021/acs.orglett.6b01565] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Anton V. Arkhipov
- Enamine
Ltd., Chervonotkatska 78, Kyiv 02094, Ukraine
- Department
of Chemistry, National Taras Shevchenko University of Kyiv, Volodymyrska
64, Kyiv 01033, Ukraine
| | - Viatcheslav V. Arkhipov
- Enamine
Ltd., Chervonotkatska 78, Kyiv 02094, Ukraine
- Department
of Chemistry, National Taras Shevchenko University of Kyiv, Volodymyrska
64, Kyiv 01033, Ukraine
| | - Janine Cossy
- Laboratoire
de Chimie Organique, Institute of Chemistry, Biology and Innovation
(CBI), UMR 8231, ESPCI ParisTech/CNRS/PSL Research University, 10 rue Vauquelin, Paris 75231 Cedex 05, France
| | - Volodymir O. Kovtunenko
- Department
of Chemistry, National Taras Shevchenko University of Kyiv, Volodymyrska
64, Kyiv 01033, Ukraine
| | - Pavel K. Mykhailiuk
- Enamine
Ltd., Chervonotkatska 78, Kyiv 02094, Ukraine
- Department
of Chemistry, National Taras Shevchenko University of Kyiv, Volodymyrska
64, Kyiv 01033, Ukraine
- Laboratoire
de Chimie Organique, Institute of Chemistry, Biology and Innovation
(CBI), UMR 8231, ESPCI ParisTech/CNRS/PSL Research University, 10 rue Vauquelin, Paris 75231 Cedex 05, France
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26
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Prieto A, Melot R, Bouyssi D, Monteiro N. Palladium-Catalyzed C(sp2
)−H Alkylation of Aldehyde-Derived Hydrazones with Functionalized Difluoromethyl Bromides. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201510334] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Alexis Prieto
- Université Lyon 1; Institut de Chimie et Biochimie Moléculaires et Supramoléculaires; CNRS UMR 5246, CPE Lyon; 43, Boulevard du 11 Novembre 1918 69622 Villeurbanne France
| | - Romain Melot
- Université Lyon 1; Institut de Chimie et Biochimie Moléculaires et Supramoléculaires; CNRS UMR 5246, CPE Lyon; 43, Boulevard du 11 Novembre 1918 69622 Villeurbanne France
| | - Didier Bouyssi
- Université Lyon 1; Institut de Chimie et Biochimie Moléculaires et Supramoléculaires; CNRS UMR 5246, CPE Lyon; 43, Boulevard du 11 Novembre 1918 69622 Villeurbanne France
| | - Nuno Monteiro
- Université Lyon 1; Institut de Chimie et Biochimie Moléculaires et Supramoléculaires; CNRS UMR 5246, CPE Lyon; 43, Boulevard du 11 Novembre 1918 69622 Villeurbanne France
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27
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Prieto A, Melot R, Bouyssi D, Monteiro N. Palladium-Catalyzed C(sp2
)−H Alkylation of Aldehyde-Derived Hydrazones with Functionalized Difluoromethyl Bromides. Angew Chem Int Ed Engl 2015; 55:1885-9. [DOI: 10.1002/anie.201510334] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Indexed: 01/14/2023]
Affiliation(s)
- Alexis Prieto
- Université Lyon 1; Institut de Chimie et Biochimie Moléculaires et Supramoléculaires; CNRS UMR 5246, CPE Lyon; 43, Boulevard du 11 Novembre 1918 69622 Villeurbanne France
| | - Romain Melot
- Université Lyon 1; Institut de Chimie et Biochimie Moléculaires et Supramoléculaires; CNRS UMR 5246, CPE Lyon; 43, Boulevard du 11 Novembre 1918 69622 Villeurbanne France
| | - Didier Bouyssi
- Université Lyon 1; Institut de Chimie et Biochimie Moléculaires et Supramoléculaires; CNRS UMR 5246, CPE Lyon; 43, Boulevard du 11 Novembre 1918 69622 Villeurbanne France
| | - Nuno Monteiro
- Université Lyon 1; Institut de Chimie et Biochimie Moléculaires et Supramoléculaires; CNRS UMR 5246, CPE Lyon; 43, Boulevard du 11 Novembre 1918 69622 Villeurbanne France
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28
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Mohamed SK, Mague JT, Akkurt M, Albayati MR, Mohamed AF. Crystal structure of 1-(2,4-di-nitro-phen-yl)-3,5-diphenyl-1H-pyrazole. Acta Crystallogr E Crystallogr Commun 2015; 71:o931-2. [PMID: 26870534 PMCID: PMC4719887 DOI: 10.1107/s2056989015021350] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Accepted: 11/10/2015] [Indexed: 12/02/2022]
Abstract
In the title mol-ecule, C21H14N4O4, the phenyl rings make dihedral angles of 39.61 (8) and 9.4 (1)°, respectively, with the central pyrazole ring. The dihedral angle between the pyrazole and di-nitro-phenyl rings is 46.95 (5)°. In the crystal, mol-ecules pack in helical stacks parallel to the a axis aided by weak C-H⋯O inter-actions.
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Affiliation(s)
- Shaaban K. Mohamed
- Chemistry and Environmental Division, Manchester Metropolitan University, Manchester M1 5GD, England
- Chemistry Department, Faculty of Science, Minia University, 61519 El-Minia, Egypt
| | - Joel T. Mague
- Department of Chemistry, Tulane University, New Orleans, LA 70118, USA
| | - Mehmet Akkurt
- Department of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey
| | - Mustafa R. Albayati
- Kirkuk University, College of Science, Department of Chemistry, Kirkuk, Iraq
| | - Alaa F. Mohamed
- National Organization for Drug Control and Research, Giza, Egypt
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29
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Meng Q, Liu N, Huang B, Zhan P, Liu X. Novel fluorine-containing DAPY derivatives as potent HIV-1 NNRTIs: a patent evaluation of WO2014072419. Expert Opin Ther Pat 2015; 25:1477-86. [PMID: 26415039 DOI: 10.1517/13543776.2016.1088832] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Diarylpyrimidine (DAPY) derivatives, one family of HIV non-nucleoside reverse transcriptase (RT) inhibitors (NNRTIs) with superior activities against wild-type (WT) HIV-1 and NNRTI-resistant strains, have attracted much attention in the past decade. A series of DAPY derivatives featuring a fluorine atom on the central ring were reported as novel NNRTIs in the patent WO2014072419. Some compounds exhibited robust potency against both WT and mutant strains, which were approximately equal to or higher than those of the reference drug TMC120. Moreover, it has become evident that fluorinated molecules have a remarkable record in many other potent NNRTIs. Thus, this survey provides a sampling of renowned fluorinated NNRTIs and their mode of action, with an analysis clarifying the functional roles and impact of fluorine substitution on antiviral potency. We envision that fluorinated NNRTIs will play a continuing role in affording anti-HIV drug candidates for therapeutic applications.
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Affiliation(s)
- Qing Meng
- a Shandong University, School of Pharmaceutical Sciences, Key Laboratory of Chemical Biology (Ministry of Education), Department of Medicinal Chemistry , 44, West Culture Road, 250012, Jinan, Shandong, P. R. China ,
| | - Na Liu
- a Shandong University, School of Pharmaceutical Sciences, Key Laboratory of Chemical Biology (Ministry of Education), Department of Medicinal Chemistry , 44, West Culture Road, 250012, Jinan, Shandong, P. R. China ,
| | - Boshi Huang
- a Shandong University, School of Pharmaceutical Sciences, Key Laboratory of Chemical Biology (Ministry of Education), Department of Medicinal Chemistry , 44, West Culture Road, 250012, Jinan, Shandong, P. R. China ,
| | | | - Xinyong Liu
- a Shandong University, School of Pharmaceutical Sciences, Key Laboratory of Chemical Biology (Ministry of Education), Department of Medicinal Chemistry , 44, West Culture Road, 250012, Jinan, Shandong, P. R. China ,
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30
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Mykhailiuk PK. New Life for Diazoacetonitrile (N2CHCN): in situ Generation and Practical Synthesis of CN-Pyrazoles. European J Org Chem 2015. [DOI: 10.1002/ejoc.201501027] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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31
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Bazhin DN, Kudyakova YS, Röschenthaler GV, Burgart YV, Slepukhin PA, Isenov ML, Saloutin VI, Charushin VN. A Convenient Approach to CF3-Containing N-Heterocycles Based on 2-Methoxy-2-methyl-5-(trifluoromethyl)furan-3(2H)-one. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500737] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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32
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33
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Mykhailiuk PK. In Situ Generation of Difluoromethyl Diazomethane for [3+2] Cycloadditions with Alkynes. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201501529] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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34
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Mykhailiuk PK. In Situ generation of difluoromethyl diazomethane for [3+2] cycloadditions with alkynes. Angew Chem Int Ed Engl 2015; 54:6558-61. [PMID: 25801346 DOI: 10.1002/anie.201501529] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Indexed: 12/15/2022]
Abstract
A novel approach to agrochemically important difluoromethyl-substituted pyrazoles has been developed based on the elusive reagent CF2 HCHN2 , which was synthesized (generated in situ) for the first time and employed in [3+2] cycloaddition reactions with alkynes. The reaction is extremely practical as it is a one-pot process, does not require a catalyst or the isolation of the potentially toxic and explosive gaseous intermediate, and proceeds in a common solvent, namely chloroform, in air. The reaction is also scalable and allows for the preparation of the target pyrazoles on gram scale.
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Affiliation(s)
- Pavel K Mykhailiuk
- Enamine Ltd. Matrosova 23, 01103 Kyiv (Ukraine) http://www.enamine.net. , .,Taras Shevchenko National University of Kyiv, Chemistry Department, Volodymyrska 64, 01601 Kyiv (Ukraine). ,
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35
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Mykhailiuk PK. Three-component synthesis of fluorinated pyrazoles from fluoroalkylamines, NaNO2 and electron-deficient alkynes. Org Biomol Chem 2015; 13:3438-45. [DOI: 10.1039/c4ob02670e] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Three-component synthesis of fluorinated pyrazoles.
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Affiliation(s)
- Pavel K. Mykhailiuk
- Enamine Ltd
- 01013 Kyiv
- Ukraine
- Faculty of Chemistry
- Taras Shevchenko National University of Kyiv
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