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Synthesis of biheteroaryls via 2-methyl quinoline C(sp3)-H functionalization under metal-free conditions. GREEN SYNTHESIS AND CATALYSIS 2022. [DOI: 10.1016/j.gresc.2022.10.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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2
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Li J, Li J, Ji X, Liu Q, Chen L, Huang Y, Li Y. Transition Metal‐Free Synthesis of Substituted Isothiazoles
via
Three‐Component Annulation of Alkynones, Xanthate and NH
4
I. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001179] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jian Li
- School of Biotechnology and Health Sciences Wuyi University Jiangmen, Guangdong Province 529090 People's Republic of China
| | - Jiaming Li
- School of Biotechnology and Health Sciences Wuyi University Jiangmen, Guangdong Province 529090 People's Republic of China
| | - Xiaoliang Ji
- School of Biotechnology and Health Sciences Wuyi University Jiangmen, Guangdong Province 529090 People's Republic of China
| | - Qiang Liu
- School of Biotechnology and Health Sciences Wuyi University Jiangmen, Guangdong Province 529090 People's Republic of China
- Center of Basic Molecular Science Department of Chemistry Tsinghua University Beijing 100084 People's Republic of China
| | - Lu Chen
- School of Biotechnology and Health Sciences Wuyi University Jiangmen, Guangdong Province 529090 People's Republic of China
| | - Yubing Huang
- School of Biotechnology and Health Sciences Wuyi University Jiangmen, Guangdong Province 529090 People's Republic of China
| | - Yibiao Li
- School of Biotechnology and Health Sciences Wuyi University Jiangmen, Guangdong Province 529090 People's Republic of China
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3
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Dong Z, Chen C, Wang J, Xu J, Yang Z. Dual roles of bisphosphines and epoxides: Rh-catalyzed highly chemoselective and diastereoselective (3 + 2) transannulations of 1,2,3-thiadiazoles with cyanoepoxides. Org Chem Front 2021. [DOI: 10.1039/d1qo01220g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Dual roles of bisphosphines and epoxides are demonstrated in highly chemoselective and diastereoselective (3 + 2) transannulations.
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Affiliation(s)
- Ziyang Dong
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Cunzhi Chen
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Jing Wang
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Jiaxi Xu
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Zhanhui Yang
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, P. R. China
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4
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Shishkina SV, Konovalova IS, Kovalenko SM, Kravchenko DV, Bunyatyan ND. Polymorphism of methyl 4-amino-3-phenylisothiazole-5-carboxylate: an experimental and theoretical study. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2021; 77:40-48. [PMID: 33397823 DOI: 10.1107/s2053229620016356] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 12/16/2020] [Indexed: 05/30/2023]
Abstract
Being a close analogue of amflutizole, methyl 4-amino-3-phenylisothiazole-5-carboxylate (C11H10N2O2S) was assumed to be capable of forming polymorphic structures. Noncentrosymmetric and centrosymmetric polymorphs have been obtained by crystallization from a series of more volatile solvents and from denser tetrachloromethane, respectively. Identical conformations of the molecule are found in both structures. The two polymorphs differ mainly in the intermolecular interactions formed by the amino group and in the type of stacking interactions between the π-systems. The most effective method for revealing packing motifs in structures with intermolecular interactions of different types (hydrogen bonding, stacking, dispersion, etc.) is to study the pairwise interaction energies using quantum chemical calculations. Molecules form a column as the primary basic structural motif due to stacking interactions in both polymorphic structures under study. The character of a column (straight or zigzag) is determined by the orientations of the stacked molecules (in a `head-to-head' or `head-to-tail' manner). Columns bound by intermolecular N-H...O and N-H...N hydrogen bonds form a double column as the main structural motif in the noncentrosymmetric structure. Double columns in the noncentrosymmetric structure and columns in the centrosymmetric structure interact strongly within the ab crystallographic plane, forming a layer as a secondary basic structural motif. The noncentrosymmetric structure has a lower density and a lower (by 0.59 kJ mol-1) lattice energy, calculated using periodic calculations, compared to the centrosymmetric structure.
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Affiliation(s)
- Svitlana V Shishkina
- SSI 'Institute for Single Crystals' NAS of Ukraine, 60 Nauky ave., Kharkiv 61001, Ukraine
| | - Irina S Konovalova
- SSI 'Institute for Single Crystals' NAS of Ukraine, 60 Nauky ave., Kharkiv 61001, Ukraine
| | - Sergiy M Kovalenko
- V.N. Karazin Kharkiv National University, 4 Svobody sq., Kharkiv 61077, Ukraine
| | - Dmitriy V Kravchenko
- Chemical Diversity Research Institute, 2A Rabochaya st., Khimki, Moscow Region 141400, Russian Federation
| | - Natalya D Bunyatyan
- Federal State Autonomous Educational Institution of Higher Education, I.M. Sechenov First Moscow State Medical University, 8 Trubeckaya, Moscow 119991, Russian Federation
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5
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Zhang ZZ, Chen R, Zhang XH, Zhang XG. Synthesis of Isoselenazoles and Isothiazoles from Demethoxylative Cycloaddition of Alkynyl Oxime Ethers. J Org Chem 2021; 86:632-642. [PMID: 33252231 DOI: 10.1021/acs.joc.0c02286] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A general method for the synthesis of isoselenazoles and isothiazoles has been developed by the base-promoted demethoxylative cycloaddition of alkynyl oxime ethers using the cheap and inactive Se powder and Na2S as selenium and sulfur sources. This transformation features the direct construction of N-, Se-, and S-containing heterocycles through the formation of N-Se/S and C-Se/S bonds in one-pot reactions with excellent functional group tolerance.
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Affiliation(s)
- Zhu-Zhu Zhang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Rong Chen
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Xiao-Hong Zhang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Xing-Guo Zhang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China.,Guangxi Key Laboratory of Calcium Carbonate Resources Comprehensive Utilization, Hezhou University, Hezhou 542899, China
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6
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Nagaraju C, Ashok SH, Shamanth S, Nagarakere SC, Sunilkumar MP, Subbegowda RK, Mantelingu K. A novel and facile synthesis of 3,5-Disubstituted isothiozoles under metal free conditions using acetophenones and dithioesters. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1748656] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Chaithra Nagaraju
- Synthetic Laboratory, DOS in Chemistry, University of Mysore, Manasagangotri, India
| | - Swarup Hassan Ashok
- Synthetic Laboratory, DOS in Chemistry, University of Mysore, Manasagangotri, India
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7
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Li L, Chen Q, Xu HH, Zhang XH, Zhang XG. DBU-Promoted Demethoxylative Thioannulation of Alkynyl Oxime Ethers with Sulfur for the Synthesis of Bisisothiazole-4-yl Disulfides. J Org Chem 2020; 85:10083-10090. [DOI: 10.1021/acs.joc.0c01334] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Ling Li
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Qian Chen
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Hong-Hui Xu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Xiao-Hong Zhang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Xing-Guo Zhang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
- Guangxi Key Laboratory of Calcium Carbonate Resources Comprehensive Utilization, Hezhou University, Hezhou 542899, China
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8
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Huang G, Li J, Ji X, Chen L, Liu Q, Chen X, Huang Y, Li Y. Access to 4-substituted isothiazoles through three-component cascade annulation and their application in C–H activation. Chem Commun (Camb) 2020; 56:5763-5766. [DOI: 10.1039/d0cc01100b] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The use of EtOCS2k enabled the annulation of isopropene derivatives with NH4I, affording various 4-substituted isothiazoles in good yields.
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Affiliation(s)
- Guoling Huang
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen
- China
| | - Jian Li
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen
- China
| | - Xiaoliang Ji
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen
- China
| | - Lu Chen
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen
- China
| | - Qiang Liu
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen
- China
- Center of Basic Molecular Science
| | - Xiuwen Chen
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen
- China
| | - Yubing Huang
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen
- China
| | - Yibiao Li
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen
- China
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9
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Guo T, Huang F, Jiang Q, Yu Z. PIDA-Mediated Formal Olefinic C=C Bond Cleavage of α-Oxo-Ketene N
,N
-Acetals toward Substituted Oxazolines. Chemistry 2018; 24:14368-14372. [DOI: 10.1002/chem.201803466] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Indexed: 01/28/2023]
Affiliation(s)
- Tenglong Guo
- Dalian Institute of Chemical Physics; Chinese Academy of Sciences; 457 Zhongshan Road Dalian 116023 P. R. China
| | - Fei Huang
- Dalian Institute of Chemical Physics; Chinese Academy of Sciences; 457 Zhongshan Road Dalian 116023 P. R. China
| | - Quanbin Jiang
- Dalian Institute of Chemical Physics; Chinese Academy of Sciences; 457 Zhongshan Road Dalian 116023 P. R. China
| | - Zhengkun Yu
- Dalian Institute of Chemical Physics; Chinese Academy of Sciences; 457 Zhongshan Road Dalian 116023 P. R. China
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 354 Fenglin Road Shanghai 200032 P. R. China
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10
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Shukla G, Srivastava A, Singh MS. Metal- and Catalyst-Free, Formal [4 + 1] Annulation via Tandem C═O/C═S Functionalization: One-Pot Access to 3,5-Disubstituted/Annulated Isothiazoles. Org Lett 2016; 18:2451-4. [DOI: 10.1021/acs.orglett.6b00997] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gaurav Shukla
- Department of Chemistry,
Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Abhijeet Srivastava
- Department of Chemistry,
Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Maya Shankar Singh
- Department of Chemistry,
Institute of Science, Banaras Hindu University, Varanasi 221005, India
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11
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Virtual Screening and Molecular Dynamics Study of Potential Negative Allosteric Modulators of mGluR1 from Chinese Herbs. Molecules 2015; 20:12769-86. [PMID: 26184151 PMCID: PMC6332408 DOI: 10.3390/molecules200712769] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Revised: 06/25/2015] [Accepted: 07/09/2015] [Indexed: 12/18/2022] Open
Abstract
The metabotropic glutamate subtype 1 (mGluR1), a member of the metabotropic glutamate receptors, is a therapeutic target for neurological disorders. However, due to the lower subtype selectivity of mGluR1 orthosteric compounds, a new targeted strategy, known as allosteric modulators research, is needed for the treatment of mGluR1-related diseases. Recently, the structure of the seven-transmembrane domain (7TMD) of mGluR1 has been solved, which reveals the binding site of allosteric modulators and provides an opportunity for future subtype-selectivity drug design. In this study, a series of computer-aided drug design methods were utilized to discover potential mGluR1 negative allosteric modulators (NAMs). Pharmacophore models were constructed based on three different structure types of mGluR1 NAMs. After validation using the built-in parameters and test set, the optimal pharmacophore model of each structure type was selected and utilized as a query to screen the Traditional Chinese Medicine Database (TCMD). Then, three different hit lists of compounds were obtained. Molecular docking was used based on the latest crystal structure of mGluR1-7TMD to further filter these hits. As a compound with high QFIT and LibDock Score was preferred, a total of 30 compounds were retained. MD simulation was utilized to confirm the stability of potential compounds binding. From the computational results, thesinine-4'-O-β-d-glucoside, nigrolineaxanthone-P and nodakenin might exhibit negative allosteric moderating effects on mGluR1. This paper indicates the applicability of molecular simulation technologies for discovering potential natural mGluR1 NAMs from Chinese herbs.
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12
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Discovery and biological evaluation of tetrahydrothieno[2,3-c]pyridine derivatives as selective metabotropic glutamate receptor 1 antagonists for the potential treatment of neuropathic pain. Eur J Med Chem 2015; 97:245-58. [DOI: 10.1016/j.ejmech.2015.04.060] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Revised: 03/30/2015] [Accepted: 04/28/2015] [Indexed: 12/31/2022]
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13
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Acid catalyzed nitrile thiolysis of 3-amino-acrylonitriles, toward the synthesis of 3,4-substituted-5-amino-isothiazoles. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.04.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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14
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Cho GH, Kim T, Son WS, Seo SH, Min SJ, Cho YS, Keum G, Jeong KS, Koh HY, Lee J, Pae AN. Synthesis and biological evaluation of aryl isoxazole derivatives as metabotropic glutamate receptor 1 antagonists: A potential treatment for neuropathic pain. Bioorg Med Chem Lett 2015; 25:1324-8. [DOI: 10.1016/j.bmcl.2015.01.035] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 12/24/2014] [Accepted: 01/19/2015] [Indexed: 10/24/2022]
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15
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Kim Y, Kim J, Kim S, Ki Y, Seo SH, Tae J, Ko MK, Jang HS, Lim EJ, Song C, Cho Y, Koh HY, Chong Y, Choo IH, Keum G, Min SJ, Choo H. Novel thienopyrimidinones as mGluR1 antagonists. Eur J Med Chem 2014; 85:629-37. [DOI: 10.1016/j.ejmech.2014.08.027] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Revised: 08/06/2014] [Accepted: 08/07/2014] [Indexed: 11/24/2022]
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16
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Tresse C, Guissart C, Schweizer S, Bouhoute Y, Chany AC, Goddard ML, Blanchard N, Evano G. Practical Methods for the Synthesis of Trifluoromethylated Alkynes: Oxidative Trifluoromethylation of Copper Acetylides and Alkynes. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400057] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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17
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Kalogirou AS, Christoforou IC, Ioannidou HA, Manos MJ, Koutentis PA. Ring transformation of (4-chloro-5H-1,2,3-dithiazol-5-ylidene)acetonitriles to 3-haloisothiazole-5-carbonitriles. RSC Adv 2014. [DOI: 10.1039/c3ra47261b] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Improved conditions for the ring transformation of 1,2,3-dithiazoles into isothiazole-5-carbonitriles are presented together with mechanistic rationale.
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18
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Hao J, Dehlinger V, Fivush AM, Rudyk HC, Britton TC, Hollinshead SP, Vokits BP, Clark BP, Henry SS, Massey SM, Peng L, Dressman BA, Heinz BA, Roberts EF, Bracey-Walker MR, Swanson S, Catlow JT, Love PL, Tepool AD, Peters SC, Simmons RMA, Iyengar S, McKinzie DL, Monn JA. Discovery of (1R,2R)-N-(4-(6-isopropylpyridin-2-yl)-3-(2-methyl-2H-indazol-5-yl)isothiazol-5-yl)-2-methylcyclopropanecarboxamide, a potent and orally efficacious mGlu5 receptor negative allosteric modulator. Bioorg Med Chem Lett 2013; 23:1249-52. [DOI: 10.1016/j.bmcl.2013.01.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2012] [Revised: 12/28/2012] [Accepted: 01/02/2013] [Indexed: 10/27/2022]
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