1
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Rajput K, Singh V, Singh S, Srivastava V. A chromatography-free one-pot, two-step synthesis of 1,2,4-thiadiazoles from primary amides via thiolation and oxidative dimerization under solvent-free conditions: a greener approach. RSC Adv 2024; 14:22480-22485. [PMID: 39015666 PMCID: PMC11250125 DOI: 10.1039/d4ra03993a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Accepted: 07/05/2024] [Indexed: 07/18/2024] Open
Abstract
An efficient and practical one-pot, two-step synthesis of 1,2,4-thiadiazoles from primary amides with Lawesson reagent (LR) and tert-butyl hydrogen peroxide (TBHP) without solvent is demonstrated for the first time. This groundbreaking and environmentally friendly approach utilises readily available starting materials and eliminates the use of traditional solvents in the reaction process. The broad substrate scope, excellent functional group tolerance in mild and metal-free conditions, quick conversion, and excellent yields are essential features of this methodology. All the compounds were purified without column chromatography.
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Affiliation(s)
- Khushbu Rajput
- Department of Chemistry, Indian Institute of Technology (BHU) Varanasi-221005 India
| | - Vishal Singh
- Department of Chemistry, Indian Institute of Technology (BHU) Varanasi-221005 India
| | - Sundaram Singh
- Department of Chemistry, Indian Institute of Technology (BHU) Varanasi-221005 India
| | - Vandana Srivastava
- Department of Chemistry, Indian Institute of Technology (BHU) Varanasi-221005 India
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2
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P MA, Chakravarthy A S J, Ila H. Synthesis of 3,5-Disubstituted-1,2,4-thiadiazoles via NaH-DMF-Promoted Dehydrogenative Intramolecular N-S Bond Formation. J Org Chem 2024; 89:4453-4460. [PMID: 38530202 DOI: 10.1021/acs.joc.3c02591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Abstract
A facile transition-metal-free synthesis of 3,5-bis(het)aryl/arylaminothiadiazoles has been reported. The overall protocol involves base-mediated tandem thioacylation of amidines with dithioesters or aryl isothiocyanates in DMF solvent and subsequent in situ intramolecular dehydrogenative N-S bond formation of thioacylamidine intermediates under an inert atmosphere. A probable mechanism involving a carbamoyl anion, generated by deprotonation of DMF, acting as a radical initiator has been suggested.
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Affiliation(s)
- Mary Antony P
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - Jeevan Chakravarthy A S
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - Hiriyakkanavar Ila
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
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3
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Wang K, Du X, Zhang P, Wei Z, Cao XT. Metal-free C-3 selective C(sp 2)-C(sp 3) heteroarylation of anilines with imidazo[1,2- a]pyridine derivatives via cross-dehydrogenative coupling. RSC Adv 2023; 13:21685-21689. [PMID: 37476046 PMCID: PMC10355276 DOI: 10.1039/d3ra03852a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 07/09/2023] [Indexed: 07/22/2023] Open
Abstract
A general and straightforward method for the regioselective construction of C-3 heteroaryl-containing imidazo[1,2-a]pyridines via cross-dehydrogenative coupling under transition-metal-free conditions has been reported, utilizing N,N-dimethylaniline as the methylenation source and furnishing the C(sp2)-C(sp3) functionalized products in good to excellent yields. Mechanism studies indicate that a radical pathway is responsible for this transformation.
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Affiliation(s)
- Kai Wang
- College of Medical Engineering & the Key Laboratory for Medical Functional Nanomaterials, Jining Medical University Jining 272067 China
| | - Xiaoxue Du
- College of Medical Engineering & the Key Laboratory for Medical Functional Nanomaterials, Jining Medical University Jining 272067 China
| | - Pengfei Zhang
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University Hangzhou 311121 China
| | - Zhenjiang Wei
- Department of Pharmaceutical Engineering, Shandong Medicine Technician College Taian 271016 China
| | - Xian-Ting Cao
- College of Medical Engineering & the Key Laboratory for Medical Functional Nanomaterials, Jining Medical University Jining 272067 China
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4
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Abdel Hamid AM, Amer AH, Assy MG, Zordok WA, Mouneir SM, El-Kalyoubi S, Shehab WS. Synthesis, pharmacological evaluation, DFT calculation, and theoretical investigation of spirocyclohexane derivatives. Bioorg Chem 2023; 131:106280. [PMID: 36436418 DOI: 10.1016/j.bioorg.2022.106280] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 11/05/2022] [Accepted: 11/13/2022] [Indexed: 11/21/2022]
Abstract
Polycyclic structures fused at a central carbon are of great interest due to their appealing conformational features and their structural implications in biological systems. Although progress in the development of synthetic methodologies toward such structures has been impressive, the stereo selective construction of such quaternary stereo centers remains a significant challenge in the total synthesis of natural products. From the computational calculations by Density Functional Theory along with the B3LYP as basis set, It is obvious that the all studied compounds are soft molecules and η varied from 0.069 for compound (10) to 0.087 for compound (15), while the compound (14) is treated as hard molecule, the value of η is 0.102, also the electronic transition within the soft compounds is easy as indicated from the △E, the compound (10) is absolute soft according to the (σ = 14.49 eV), while the compound (14) is treated as hard compounds (σ = 9.804 eV). The newly formed compounds exhibited both anti-inflammatory and antioxidant activities on HRBC homolytic and membrane stabilization and DPPH scavenging percent, respectively.
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Affiliation(s)
- Atef M Abdel Hamid
- Department of Chemistry, Faculty of Science, Zagazig University, Zagazig 44519, Egypt
| | - Asmaa H Amer
- Department of Chemistry, Faculty of Science, Zagazig University, Zagazig 44519, Egypt
| | - Mohamed G Assy
- Department of Chemistry, Faculty of Science, Zagazig University, Zagazig 44519, Egypt
| | - Wael A Zordok
- Department of Chemistry, Faculty of Science, Zagazig University, Zagazig 44519, Egypt
| | - Samar M Mouneir
- Department of Pharmacology, Faculty of Veterinary Medicine, Cairo University, Cairo 12211, Egypt
| | - Samar El-Kalyoubi
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy (Girls), Al-Azhar University, Nasr City, Cairo 11651, Egypt
| | - Wesam S Shehab
- Department of Chemistry, Faculty of Science, Zagazig University, Zagazig 44519, Egypt
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5
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Dakhno PG, Dotsenko VV, Strelkov VD, Vasilin VK, Aksenov NA, Aksenova IV. (2E,2′E)-2,2′-(1,2,4-Thiadiazole-3,5-diyl)bis[3-arylacrylonitriles]: Synthesis and Antidote Activity Towards 2,4-D Herbicide. RUSS J GEN CHEM+ 2022. [DOI: 10.1134/s1070363222120337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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6
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Krivokolysko BS, Dotsenko VV, Pakholka NA, Dakhno PG, Strelkov VD, Aksenov NA, Aksenova IV, Krivokolysko SG. Bromine- and iodine-mediated oxidative dimerization of cyanothioacetamide derivatives: synthesis of new functionalized 1,2,4-thiadiazoles. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2022. [DOI: 10.1007/s13738-022-02688-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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7
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Osminin VI, Mironenko AA, Dahno PG, Nazarenko MA, Oflidi AI, Dotsenko VV, Strelkov VD, Aksenov NA, Aksenova IV. Electrochemical Oxidation of 3-Aryl-2-cyanothioacrylamides. RUSS J GEN CHEM+ 2022. [DOI: 10.1134/s1070363222110068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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8
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The effect of halogens in the coordination of 2-pyridinethioamide to gold centers. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.116114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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9
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Dahno PG, Zhilyaev DM, Dotsenko VV, Strelkov VD, Krapivin GD, Aksenov NA, Aksenova IV, Likhovid NG. Oxidation of 2-Cyanothioacrylamides with Sodium Nitrite in Acidic Medium. RUSS J GEN CHEM+ 2022. [DOI: 10.1134/s1070363222090080] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Abstract
(E)-3-Aryl-2-cyanoprop-2-entioamides, prepared by Knoevenagel condensation between aromatic aldehydes and cyanothioacetamide, react with sodium nitrite in acetic acid to form (2E,2′E)-2,2′-(1,2,4-thiadiazole-3,5-diyl)bis[3-arylacrylonitriles]. A possible mechanism and limitations of the reaction are discussed. Molecular docking was carried out in order to search for possible protein targets for the obtained 1,2,4-thiadiazoles. One of the compounds showed a pronounced antidote effect against the herbicide 2,4-D in a laboratory experiment on sunflower seedlings and under field conditions.
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10
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Synthesis, crystal structure, DFT and molecular docking studies of N-acetyl-2,4-[diaryl-3-azabicyclo[3.3.1]nonan-9-yl]-9-spiro-4'-acetyl-2'-(acetylamino)-4',9-dihydro-[1',3',4']-thiadiazoles: A potential SARS-nCoV-2 Mpro (COVID-19) inhibitor. J Mol Struct 2022; 1259:132747. [PMID: 35250091 PMCID: PMC8888462 DOI: 10.1016/j.molstruc.2022.132747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 02/15/2022] [Accepted: 03/01/2022] [Indexed: 11/21/2022]
Abstract
In this paper, we describe the synthesis and crystal structure analysis of N-acetyl-2,4-[diphenyl-3-azabicyclo[3.3.1]nonan-9-yl]-9-spiro-4′-acetyl-2′-(acetylamino)-4′,9-dihydro-[1′,3′,4′]-thiadiazole (3a) and N-acetyl- 2,4-[bis(p-methoxyphenyl)-3-azabicyclo[3.3.1]nonan-9-yl]-9-spiro-4′-acetyl-2′-(acetylamino)-4′,9-dihydro-[1′,3′,4′]-thiadiazole (3b). The title compounds 3a and 3b are characterized by 1D NMR and single crystal x-ray diffraction analysis. Non-covalent interactions in a molecule were identified by Hirshfeld surface (dnorm contacts and 2D fingerprint plot) analysis. In addition, the existence of chalcogen bond (S•••O bond) in the molecular structures (3a and 3b) are described by NCI-RDG and QTAIM analysis. NBO analysis is employed to describe the orbital interactions and electron transfer between sulfur and oxygen atoms. Molecular docking is carried out for compounds 3a and 3b with COVID-19 viral protein SARS-nCoV-2 Mpro (PDB ID: 6LU7).
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11
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Alvi S, Jayant V, Ali R. Applications of Oxone® in Organic Synthesis: An Emerging Green Reagent of Modern Era. ChemistrySelect 2022. [DOI: 10.1002/slct.202200704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shakeel Alvi
- Department of Chemistry, Jamia Millia Islamia, Jamia Nagar, Okhla New Delhi 110025 India
| | - Vikrant Jayant
- Department of Chemistry, Jamia Millia Islamia, Jamia Nagar, Okhla New Delhi 110025 India
| | - Rashid Ali
- Department of Chemistry, Jamia Millia Islamia, Jamia Nagar, Okhla New Delhi 110025 India
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12
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External oxidant-free and transition metal-free synthesis of 5-amino-1,2,4-thiadiazoles as promising antibacterials against ESKAPE pathogen strains. Mol Divers 2022; 27:651-666. [PMID: 35639224 DOI: 10.1007/s11030-022-10445-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 04/18/2022] [Indexed: 10/18/2022]
Abstract
A new route to 5-amino-1,2,4-thiadiazole derivatives via reaction of N-chloroamidines with isothiocyanates has been proposed. The advantages of this method are high product yields (up to 93%), the column chromatography-free workup procedure, scalability and the absence of additive oxidizing agents or transition metal catalysts. The 28 examples of 5-amino-1,2,4-thiadiazole derivatives obtaining via the proposing protocol were evaluated in vitro against ESKAPE pathogens strains (Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, Enterobacter cloacae). It was found that compounds 5ba, 5bd, 6a, 6d and 6c have potent antibacterial activity (MIC values 0.09-1.5 μg mL-1), which is superior to the activity of commercial antibiotics such as pefloxacin (MIC 4-8 μg mL-1) and streptomycin (MIC 2-32 μg mL-1). The additional cytotoxic assay of hit compounds on PANC-1 cell line demonstrated the low or non-cytotoxicity activity at the same level of concentrations. Thus, these 5 compounds are promising starting point for further antimicrobial drug development.
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13
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Cao X, Zheng Z, Liu J, Hu Y, Yu H, Cai S, Wang G. H
2
O
2
‐Mediated Synthesis of 1,2,4‐Thiadiazole Derivatives in Ethanol at Room Temperature. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202101455] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Xian‐Ting Cao
- College of Medical Engineering& the Key Laboratory for Medical Functional Nanomaterials Jining Medical University Jining 272067 People's Republic of China
| | - Zuo‐Ling Zheng
- College of Medical Engineering& the Key Laboratory for Medical Functional Nanomaterials Jining Medical University Jining 272067 People's Republic of China
| | - Jie Liu
- College of Medical Engineering& the Key Laboratory for Medical Functional Nanomaterials Jining Medical University Jining 272067 People's Republic of China
| | - Yu‐He Hu
- College of Medical Engineering& the Key Laboratory for Medical Functional Nanomaterials Jining Medical University Jining 272067 People's Republic of China
| | - Hao‐Yun Yu
- College of Medical Engineering& the Key Laboratory for Medical Functional Nanomaterials Jining Medical University Jining 272067 People's Republic of China
| | - Shasha Cai
- College of Medical Engineering& the Key Laboratory for Medical Functional Nanomaterials Jining Medical University Jining 272067 People's Republic of China
| | - Guannan Wang
- College of Medical Engineering& the Key Laboratory for Medical Functional Nanomaterials Jining Medical University Jining 272067 People's Republic of China
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14
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Ma ST, Zhu XX, Xu JY, Li Y, Zhang XM, Feng CT, Yan Y. Iodide-promoted transformations of imidazopyridines into sulfur-bridged imidazopyridines or 1,2,4-thiadiazoles. Chem Commun (Camb) 2021; 57:5338-5341. [PMID: 33928973 DOI: 10.1039/d1cc01044a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A NaI-promoted sequential double carbon-sulfur bond formation was developed to afford sulfur-bridged imidazopyridines, using Deoxofluor as the sulfur source and requiring only 15 min at room temperature. Using this process, imidazo[1,5-a]pyridines could also be transformed to 1,2,4-thiadiazoles in the presence of ammonium salt with the formation of both carbon-sulfur and nitrogen-sulfur bonds. This mechanistically unique method is distinguished by its wide substrate scope, lack of requirement for transition metals and mild conditions.
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Affiliation(s)
- Shi-Tang Ma
- Life and Health College, Anhui Science and Technology University, Fengyang, 233100, China and School of Chemical Engineering, Anhui University of Science and Technology, Huainan, 232001, China.
| | - Xiao-Xiao Zhu
- School of Chemical Engineering, Anhui University of Science and Technology, Huainan, 232001, China.
| | - Jing-Yu Xu
- School of Chemical Engineering, Anhui University of Science and Technology, Huainan, 232001, China.
| | - Ying Li
- School of Chemical Engineering, Anhui University of Science and Technology, Huainan, 232001, China.
| | - Xiao-Mei Zhang
- School of Chemical Engineering, Anhui University of Science and Technology, Huainan, 232001, China.
| | - Cheng-Tao Feng
- School of Chemical Engineering, Anhui University of Science and Technology, Huainan, 232001, China.
| | - Yizhe Yan
- College of Food and Bioengineering, Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zhengzhou University of Light Industry, Zhengzhou, 450000, China.
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15
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Yu L, Feng B, Wang Z, Gao L, Zhang C, Satheeshkumar R, Li J, Zhou Y, Wang W. Synthesis of 5-Phenyl-1,3,4-thiadiazole Derivatives and Their Biochemical Evaluation against Src Homology 2 Domain-Containing Protein Tyrosine Phosphatase 1 (SHP1). CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202104041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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16
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Anstis DG, Lindsay AC, Söhnel T, Sperry J. Synthesis of the 1,2,4-Thiadiazole Alkaloid Polyaurine B. JOURNAL OF NATURAL PRODUCTS 2020; 83:1721-1724. [PMID: 32297745 DOI: 10.1021/acs.jnatprod.0c00166] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A short synthesis of the natural product polyaurine B is described. The 1,2,4-thiadiazole heterocycle was assembled using a Cu(II)-mediated heterocyclization reaction that forges the N-S bond. The final acylation step to install the methylcarbamate must be conducted under anhydrous, nonbasic conditions to prevent thiadiazole ring opening initiated by attack of hydroxide at C-5.
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Affiliation(s)
- Daniel G Anstis
- School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland 1010, New Zealand
| | - Ashley C Lindsay
- School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland 1010, New Zealand
| | - Tilo Söhnel
- School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland 1010, New Zealand
| | - Jonathan Sperry
- School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland 1010, New Zealand
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17
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Novel 5-N,N-disubstituted-5-amino-3-(2-oxopropyl)-1,2,4-thiadiazoles: synthesis and study of neuroprotective and antiproliferative properties. Russ Chem Bull 2020. [DOI: 10.1007/s11172-019-2700-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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18
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Yuan J, Xia Q, Zhu W, Wu C, Wang B, Liu B, Yang X, Xu Y, Xu H. Sunlight‐Driven Synthesis of 1,2,4‐Thiadiazoles via Oxidative Construction of a Nitrogen‐Sulfur Bond Catalyzed by a Reusable Covalent Organic Framework. CHEMPHOTOCHEM 2020. [DOI: 10.1002/cptc.201900263] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Jiangpei Yuan
- Institution of Functional Organic Molecular Engineering College of Chemistry and Chemical EngineeringHenan University Kaifeng 475004 P. R. China
| | - Qiangqiang Xia
- Institution of Functional Organic Molecular Engineering College of Chemistry and Chemical EngineeringHenan University Kaifeng 475004 P. R. China
| | - Weiwei Zhu
- Institution of Functional Organic Molecular Engineering College of Chemistry and Chemical EngineeringHenan University Kaifeng 475004 P. R. China
| | - Cunluo Wu
- Institution of Functional Organic Molecular Engineering College of Chemistry and Chemical EngineeringHenan University Kaifeng 475004 P. R. China
| | - Bingxin Wang
- Institution of Functional Organic Molecular Engineering College of Chemistry and Chemical EngineeringHenan University Kaifeng 475004 P. R. China
| | - Baoying Liu
- Institution of Functional Organic Molecular Engineering College of Chemistry and Chemical EngineeringHenan University Kaifeng 475004 P. R. China
| | - Xiaobo Yang
- College of Chemistry & Chemical EngineeringShenyang Normal University Shenyang Liaoning 110034 P. R. China
| | - Yuanqing Xu
- Institution of Functional Organic Molecular Engineering College of Chemistry and Chemical EngineeringHenan University Kaifeng 475004 P. R. China
| | - Hao Xu
- Institution of Functional Organic Molecular Engineering College of Chemistry and Chemical EngineeringHenan University Kaifeng 475004 P. R. China
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19
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Doğan H, Doğan ŞD, Gündüz MG, Krishna VS, Lherbet C, Sriram D, Şahin O, Sarıpınar E. Discovery of hydrazone containing thiadiazoles as Mycobacterium tuberculosis growth and enoyl acyl carrier protein reductase (InhA) inhibitors. Eur J Med Chem 2020; 188:112035. [PMID: 31951850 DOI: 10.1016/j.ejmech.2020.112035] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 01/03/2020] [Accepted: 01/03/2020] [Indexed: 11/28/2022]
Abstract
Tuberculosis, caused by Mycobacterium tuberculosis, is a serious infectious disease and remains a global health problem. There is an increasing need for the discovery of novel therapeutic agents for its treatment due to the emerging multi-drug resistance. Herein, we present the rational design and the synthesis of eighteen new thiadiazolylhidrazones (TDHs) which were synthesized by intramolecular oxidative N-S bond formation reaction of 2-benzylidene-N-(phenylcarbamothioyl)hydrazine-1-carboximidamide derivatives by phenyliodine(III) bis(trifluoroacetate) (PIFA) under mild conditions. The compounds were characterized by various spectral techniques including FTIR, 1H NMR, 13C NMR and HRMS. Furthermore, the proposed structure of TDH12 was resolved by single-crystal X-ray analysis. The compounds were evaluated for their in vitro antitubercular activity against M. tuberculosis H37Rv. Among them, some compounds exhibited remarkable antimycobacterial activity, MIC = 0.78-6.25 μg/mL, with low cytotoxicity. Additionally, the most active compounds were screened for their biological activities against M. tuberculosis in the nutrient starvation model. Enzyme inhibition assays and molecular docking studies revealed enoyl acyl carrier protein reductase (InhA) as the possible target enzyme of the compounds to show their antitubercular activities.
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Affiliation(s)
- Hilal Doğan
- Department of Chemistry, Faculty of Science, Erciyes University, 38039, Kayseri, Turkey; Department of Basic Sciences, Faculty of Pharmacy, Erciyes University, 38039, Kayseri, Turkey
| | - Şengül Dilem Doğan
- Department of Basic Sciences, Faculty of Pharmacy, Erciyes University, 38039, Kayseri, Turkey.
| | - Miyase Gözde Gündüz
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Hacettepe University, Sıhhiye, 06100, Ankara, Turkey
| | - Vagolu Siva Krishna
- Department of Pharmacy, Birla Institute of Technology and Science-Pilani, 500078, Hyderabad, India
| | - Christian Lherbet
- LSPCMIB, UMR-CNRS 5068, Université Paul Sabatier-Toulouse III, 118, route de Narbonne, 236 Cours Eugène Cosserat, 31062, Toulouse Cedex, France
| | - Dharmarajan Sriram
- Department of Pharmacy, Birla Institute of Technology and Science-Pilani, 500078, Hyderabad, India
| | - Onur Şahin
- Scientific and Technological Research Application and Research Center, Sinop University, 57000 Sinop, Turkey
| | - Emin Sarıpınar
- Department of Chemistry, Faculty of Science, Erciyes University, 38039, Kayseri, Turkey
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20
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Shimada K, Isogami M, Maeda K, Nishinomiya R, Korenaga T. Convenient Synthesis of 2,3-Dihydro-1,2,4-thiadiazoles, 4,5-Dihydro-1,3-thiazoles, and 1,3-Thiazoles through a [4+1]-Type Oxidative Ring Closure of 1,3-Thiaza-1,3-butadienes. HETEROCYCLES 2020. [DOI: 10.3987/com-20-14244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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21
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Li J, Xie X, Yang P, Jiang S, Tao L, Li Z, Lu C, Liu W. Electrochemical Synthesis of 1,2,4‐Thiadiazoles through Intermolecular Dehydrogenative S‐N Coupling. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201901290] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jiang‐Sheng Li
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, School of Chemistry and Food EngineeringChangsha University of Science & Technology Changsha 410114 People's Republic of China
| | - Xin‐Yun Xie
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, School of Chemistry and Food EngineeringChangsha University of Science & Technology Changsha 410114 People's Republic of China
| | - Pan‐Pan Yang
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, School of Chemistry and Food EngineeringChangsha University of Science & Technology Changsha 410114 People's Republic of China
| | - Si Jiang
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, School of Chemistry and Food EngineeringChangsha University of Science & Technology Changsha 410114 People's Republic of China
| | - Li Tao
- State Grid Hunan Electric Power Company Limited Research Institute Changsha 410004 People's Republic of China
| | - Zhi‐Wei Li
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, School of Chemistry and Food EngineeringChangsha University of Science & Technology Changsha 410114 People's Republic of China
| | - Cui‐Hong Lu
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, School of Chemistry and Food EngineeringChangsha University of Science & Technology Changsha 410114 People's Republic of China
| | - Wei‐Dong Liu
- National Engineering Research Center for AgrochemicalsHunan Research Institute of Chemical Industry Changsha 410007 People's Republic of China
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22
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Durga Rao BV, Sreenivasulu R, Basaveswara Rao MV. Design, Synthesis, and Evaluation of Isoxazole-Thiadiazole Linked Carbazole Hybrids as Anticancer Agents. RUSS J GEN CHEM+ 2019. [DOI: 10.1134/s1070363219100207] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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23
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Imidazole‐Bridged Tetrameric Group(IV) Heteroleptic Complexes from the Spontaneous Metal‐Ligand Assembly of a Potentially
N
4
‐Tetradentate Ligand. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900763] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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24
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Cailler LP, Martynov AG, Gorbunova YG, Tsivadze AY, Sorokin AB. Carbene insertion to N–H bonds of 2-aminothiazole and 2-amino-1,3,4-thiadiazole derivatives catalyzed by iron phthalocyanine. J PORPHYR PHTHALOCYA 2019. [DOI: 10.1142/s1088424619500354] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Iron(III) phthalocyaninate decorated with crown ether substituents, [(15C5)4PcFe]Cl, efficiently catalyzed the insertion of carbene derived from ethyl diazoacetate to six amines functionalized with thiazole, thiazoline and thiadiazole heterocycles. The reactions were carried out under practical conditions using EDA:amine stoechiometric ratio with 0.05 mol% catalyst loading. Turnover numbers up to 3360 have been achieved. The aminoacid derivatives bearing heterocyclic moieties were obtained under catalytic conditions for the first time with 36–69% yields in the case of single N–H insertion products and up to 77% in the case of double N–H insertion products.
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Affiliation(s)
- Lucie P. Cailler
- Institut de Recherches sur la Catalyse et l’Environnement de Lyon, IRCELYON, UMR 5256, CNRS, Université Lyon 1, 2 av. Albert Einstein, 69626 Villeurbanne Cedex, France
| | - Alexander G. Martynov
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr., 31, Bldg. 4, 119071, Moscow, Russia
| | - Yulia G. Gorbunova
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr., 31, Bldg. 4, 119071, Moscow, Russia
| | - Aslan Yu. Tsivadze
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr., 31, Bldg. 4, 119071, Moscow, Russia
| | - Alexander B. Sorokin
- Institut de Recherches sur la Catalyse et l’Environnement de Lyon, IRCELYON, UMR 5256, CNRS, Université Lyon 1, 2 av. Albert Einstein, 69626 Villeurbanne Cedex, France
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25
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Halimehjani AZ, Sharifi A, Rahimzadeh H. Simple and Green Procedures for the Synthesis of 3,5‐Bis(alkylthio)‐1,2,4‐thiadiazoles via Oxidative Dimerization of Dithiocarbamates. ChemistrySelect 2019. [DOI: 10.1002/slct.201803832] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | - Ali Sharifi
- Faculty of ChemistryKharazmi University 49 Mofateh St. 15719-14911 Tehran Iran
| | - Hossein Rahimzadeh
- Faculty of ChemistryKharazmi University 49 Mofateh St. 15719-14911 Tehran Iran
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26
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Yang L, Song L, Tang S, Li L, Li H, Yuan B, Yang G. Co-Catalyzed Intramolecular S-N Bond Formation in Water for 1,2-Benzisothiazol-3(2H
)-ones and 1,2,4-Thiadiazoles Synthesis. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801642] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Liting Yang
- College of Chemistry and Molecular Engineering; Zhengzhou University; 100 Kexue Avenue 450001 Zhengzhou P. R. China
| | - Lijuan Song
- College of Chemistry and Molecular Engineering; Zhengzhou University; 100 Kexue Avenue 450001 Zhengzhou P. R. China
| | - Shanyu Tang
- College of Chemistry and Molecular Engineering; Zhengzhou University; 100 Kexue Avenue 450001 Zhengzhou P. R. China
| | - Longjia Li
- College of Chemistry and Molecular Engineering; Zhengzhou University; 100 Kexue Avenue 450001 Zhengzhou P. R. China
| | - Heng Li
- College of Chemistry and Molecular Engineering; Zhengzhou University; 100 Kexue Avenue 450001 Zhengzhou P. R. China
| | - Bingxin Yuan
- College of Chemistry and Molecular Engineering; Zhengzhou University; 100 Kexue Avenue 450001 Zhengzhou P. R. China
| | - Guanyu Yang
- College of Chemistry and Molecular Engineering; Zhengzhou University; 100 Kexue Avenue 450001 Zhengzhou P. R. China
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27
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Guo W, Zhao M, Tan W, Zheng L, Tao K, Fan X. Developments towards synthesis of N-heterocycles from amidines via C–N/C–C bond formation. Org Chem Front 2019. [DOI: 10.1039/c9qo00283a] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review focuses on the synthesis of N-heterocycles using amidines as starting materials, with an emphasis on the mechanisms of these reactions via C–N/C–C bond formation.
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Affiliation(s)
- Wei Guo
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Mingming Zhao
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Wen Tan
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Lvyin Zheng
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Kailiang Tao
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Xiaolin Fan
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
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28
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Wang Z, Meng X, Li Q, Tang H, Wang H, Pan Y. Electrochemical Synthesis of 3,5‐Disubstituted‐1,2,4‐thiadiazoles through NH
4
I‐Mediated Dimerization of Thioamides. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800871] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Zi‐Qiang Wang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal ResourcesSchool of Chemistry and Pharmaceutical Sciences of Guangxi Normal University Guilin 541004 People's Republic of China
| | - Xiu‐Jin Meng
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal ResourcesSchool of Chemistry and Pharmaceutical Sciences of Guangxi Normal University Guilin 541004 People's Republic of China
| | - Qian‐Yu Li
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal ResourcesSchool of Chemistry and Pharmaceutical Sciences of Guangxi Normal University Guilin 541004 People's Republic of China
| | - Hai‐Tao Tang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal ResourcesSchool of Chemistry and Pharmaceutical Sciences of Guangxi Normal University Guilin 541004 People's Republic of China
| | - Heng‐Shan Wang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal ResourcesSchool of Chemistry and Pharmaceutical Sciences of Guangxi Normal University Guilin 541004 People's Republic of China
| | - Ying‐Ming Pan
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal ResourcesSchool of Chemistry and Pharmaceutical Sciences of Guangxi Normal University Guilin 541004 People's Republic of China
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29
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Mulina OM, Ilovaisky AI, Terent'ev AO. Oxidative Coupling with S-N Bond Formation. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800838] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Olga M. Mulina
- N. D. Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; Leninsky Prospekt 47 119991 Moscow Russian Federation
| | - Alexey I. Ilovaisky
- N. D. Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; Leninsky Prospekt 47 119991 Moscow Russian Federation
| | - Alexander O. Terent'ev
- N. D. Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; Leninsky Prospekt 47 119991 Moscow Russian Federation
- D. I. Mendeleev University of Chemical Technology of Russia; 9 Miusskaya square 125047 Moscow Russian Federation
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30
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Yu W, Huang Y, Li J, Tang X, Wu W, Jiang H. Copper-Catalyzed Aerobic Oxidative [3+2] Annulation for the Synthesis of 5-Amino/Imino-Substituted 1,2,4-Thiadiazoles through C-N/N-S Bond Formation. J Org Chem 2018; 83:9334-9343. [PMID: 30020784 DOI: 10.1021/acs.joc.8b01292] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A copper-catalyzed aerobic oxidative annulation reaction of 2-aminopyridine/amidine with isothiocyanate has been reported. This strategy involving C-N/N-S bond formations provides various 5-amino/imino-substituted 1,2,4-thiadiazole derivatives under a Cu/O2 catalytic system. This method has demonstrated high reactivity, mild reaction conditions, and a broad substrate scope. Furthermore, the synthetic utilities of the approach are demonstrated by further modifications.
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Affiliation(s)
- Wentao Yu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, Guangdong Engineering Research Center for Green Fine Chemicals, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , China
| | - Yubing Huang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, Guangdong Engineering Research Center for Green Fine Chemicals, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , China
| | - Jianxiao Li
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, Guangdong Engineering Research Center for Green Fine Chemicals, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , China
| | - Xiaodong Tang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, Guangdong Engineering Research Center for Green Fine Chemicals, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , China
| | - Wanqing Wu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, Guangdong Engineering Research Center for Green Fine Chemicals, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, Guangdong Engineering Research Center for Green Fine Chemicals, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , China
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31
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Chacko P, Shivashankar K. Montmorillonite K10-catalyzed synthesis of N-fused imino-1,2,4-thiadiazolo isoquinoline derivatives. SYNTHETIC COMMUN 2018. [DOI: 10.1080/00397911.2018.1448419] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Priya Chacko
- P.G. Department of Chemistry, Bangalore University, Bangalore, Karnataka, India
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32
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Cao XT, Qiao L, Zheng H, Yang HY, Zhang PF. A efficient protocol for the synthesis of thioamides in [DBUH][OAc] at room temperature. RSC Adv 2018. [DOI: 10.1039/c7ra11259a] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel, simple and eco-friendly method to synthesize thioamides from aryl nitriles and sodium sulfide (Na2S·9H2O) catalyzed by 1,8-diazabicyclo[5,4,0]undec-7-enium acetate ([DBUH][OAc]) ionic liquid (IL) at room temperature was developed in this paper.
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Affiliation(s)
- Xian-Ting Cao
- College of Pharmaceutical Science
- Zhejiang University of Technology
- Hangzhou 310014
- China
- College of Material, Chemistry and Chemical Engineering
| | - Li Qiao
- College of Material, Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou
- China
| | - Hui Zheng
- College of Material, Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou
- China
| | - Hui-Yong Yang
- College of Material, Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou
- China
| | - Peng-Fei Zhang
- College of Pharmaceutical Science
- Zhejiang University of Technology
- Hangzhou 310014
- China
- College of Material, Chemistry and Chemical Engineering
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33
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Zhang P, Cao X, Yang H, Zheng H. A Simple Method for Synthesis of Thioamides and Application in Synthesis of 1,2,4-Thiadiazoles. HETEROCYCLES 2018. [DOI: 10.3987/com-18-13872] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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34
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Frija LM, Kuznetsov ML, Rocha BG, Cabral L, Cristiano MLS, Kopylovich MN, Pombeiro AJ. Organocatalyzed oxidation of benzyl alcohols by a tetrazole-amino-saccharin: A combined experimental and theoretical (DFT) study. MOLECULAR CATALYSIS 2017. [DOI: 10.1016/j.mcat.2017.09.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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35
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Romero-Hernández LL, Merino-Montiel P, Meza-Reyes S, Vega-Baez JL, López Ó, Padrón JM, Montiel-Smith S. Synthesis of unprecedented steroidal spiro heterocycles as potential antiproliferative drugs. Eur J Med Chem 2017; 143:21-32. [PMID: 29172080 DOI: 10.1016/j.ejmech.2017.10.063] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 10/09/2017] [Accepted: 10/22/2017] [Indexed: 01/14/2023]
Abstract
Herein we report the straightforward preparation of novel conformationally-restricted steroids from trans-androsterone and estrone, decorated with spiranic oxazolidin-2-one or 2-aminooxazoline motifs at C-17 as potential antiproliferative agents. Such unprecedented pharmacophores were accessed using an aminomethylalcohol derivative at C-17 as the key intermediate; reaction of such functionality with triphosgene, or conversion into N-substituted thioureas, followed by an intramolecular cyclodesulfurization reaction promoted by yellow HgO, furnished such spirocycles in excellent yields. Title compounds were tested in vitro against a panel of six human tumor cell lines, named A549 (non-small cell lung), HBL-100 (breast), HeLa (cervix), SW1573 (non-small cell lung), T-47D (breast) and WiDr (colon), and the results were compared with steroidal chemotherapeutic agents (abiraterone and galeterone); the A-ring of the steroidal backbone, the nature of the heterocycle and the N-substituents proved to be essential motifs for establishing structure-activity relationships concerning not only the potency but also the selectivity against tumor cell lines. Estrone derivatives, particularly those bearing a spiranic 2-aminooxazoline scaffold were found to be the most active compounds, with GI50 values ranging from the low micromolar to the submicromolar level (0.34-1.5 μM). Noteworthy, the lead compounds showed a remarkable increase in activity against the resistant cancer cell lines (T-47D and WiDr) compared to the anticancer reference drugs (up to 120-fold).
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Affiliation(s)
- Laura L Romero-Hernández
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, 72570 Puebla, Pue., Mexico
| | - Penélope Merino-Montiel
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, 72570 Puebla, Pue., Mexico.
| | - Socorro Meza-Reyes
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, 72570 Puebla, Pue., Mexico
| | - José Luis Vega-Baez
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, 72570 Puebla, Pue., Mexico
| | - Óscar López
- Departamento de Química Orgánica, Facultad de Química, Universidad de Sevilla, Apartado 1203, E-41071 Seville, Spain
| | - José M Padrón
- BioLab, Instituto Universitario de Bio-Orgánica "Antonio González" (IUBO-AG), Centro de Investigaciones Biomédicas de Canarias (CIBICAN), Universidad de La Laguna, c/ Astrofísico Francisco Sánchez 2, 38206 La Laguna, Spain
| | - Sara Montiel-Smith
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, 72570 Puebla, Pue., Mexico.
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36
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Wang B, Meng Y, Zhou Y, Ren L, Wu J, Yu W, Chang J. Synthesis of 5-Amino and 3,5-Diamino Substituted 1,2,4-Thiadiazoles by I2-Mediated Oxidative N–S Bond Formation. J Org Chem 2017; 82:5898-5903. [DOI: 10.1021/acs.joc.7b00814] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bingnan Wang
- College of Chemistry
and
Molecular Engineering, Zhengzhou University, Zhengzhou, Henan Province 450001, P. R. China
| | - Yinggao Meng
- College of Chemistry
and
Molecular Engineering, Zhengzhou University, Zhengzhou, Henan Province 450001, P. R. China
| | - Yiming Zhou
- College of Chemistry
and
Molecular Engineering, Zhengzhou University, Zhengzhou, Henan Province 450001, P. R. China
| | - Linning Ren
- College of Chemistry
and
Molecular Engineering, Zhengzhou University, Zhengzhou, Henan Province 450001, P. R. China
| | - Jie Wu
- College of Chemistry
and
Molecular Engineering, Zhengzhou University, Zhengzhou, Henan Province 450001, P. R. China
| | - Wenquan Yu
- College of Chemistry
and
Molecular Engineering, Zhengzhou University, Zhengzhou, Henan Province 450001, P. R. China
| | - Junbiao Chang
- College of Chemistry
and
Molecular Engineering, Zhengzhou University, Zhengzhou, Henan Province 450001, P. R. China
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37
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Tumula N, Jatangi N, Palakodety RK, Balasubramanian S, Nakka M. I2-Catalyzed Oxidative N–S Bond Formation: Metal-Free Regiospecific Synthesis of N-Fused and 3,4-Disubstituted 5-Imino-1,2,4-thiadiazoles. J Org Chem 2017; 82:5310-5316. [DOI: 10.1021/acs.joc.7b00646] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Nagaraju Tumula
- Organic
and Biomolecular Chemistry Division and ‡Center for X-ray Crystallography, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Nagesh Jatangi
- Organic
and Biomolecular Chemistry Division and ‡Center for X-ray Crystallography, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Radha Krishna Palakodety
- Organic
and Biomolecular Chemistry Division and ‡Center for X-ray Crystallography, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Sridhar Balasubramanian
- Organic
and Biomolecular Chemistry Division and ‡Center for X-ray Crystallography, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Mangarao Nakka
- Organic
and Biomolecular Chemistry Division and ‡Center for X-ray Crystallography, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
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