1
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Lu P, Juarez L, Wiget PA, Zhang W, Raman K, Kotian PL. Regioselective alkylation of a versatile indazole: Electrophile scope and mechanistic insights from density functional theory calculations. Beilstein J Org Chem 2024; 20:1940-1954. [PMID: 39135655 PMCID: PMC11318628 DOI: 10.3762/bjoc.20.170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Accepted: 07/26/2024] [Indexed: 08/15/2024] Open
Abstract
Herein, we report a pair of regioselective N 1- and N 2 -alkylations of a versatile indazole, methyl 5-bromo-1H-indazole-3-carboxylate (6) and the use of density functional theory (DFT) to evaluate their mechanisms. Over thirty N 1- and N 2-alkylated products were isolated in over 90% yield regardless of the conditions. DFT calculations suggest a chelation mechanism produces the N 1-substituted products when cesium is present and other non-covalent interactions (NCIs) drive the N 2-product formation. Methyl 1H-indazole-7-carboxylate (18) and 1H-indazole-3-carbonitrile (21) were also subjected to the reaction conditions and their mechanisms were evaluated. The N 1- and N 2-partial charges and Fukui indices were calculated for compounds 6, 18, and 21 via natural bond orbital (NBO) analyses which further support the suggested reaction pathways.
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Affiliation(s)
- Pengcheng Lu
- Department of Discovery Chemistry, BioCryst Pharmaceuticals Inc., Discovery Center of Excellence, 2100 Riverchase Center Building 200, Suite 200 Birmingham, AL, 35244, USA
| | - Luis Juarez
- Department of Discovery Chemistry, BioCryst Pharmaceuticals Inc., Discovery Center of Excellence, 2100 Riverchase Center Building 200, Suite 200 Birmingham, AL, 35244, USA
| | - Paul A Wiget
- Department of Discovery Chemistry, BioCryst Pharmaceuticals Inc., Discovery Center of Excellence, 2100 Riverchase Center Building 200, Suite 200 Birmingham, AL, 35244, USA
| | - Weihe Zhang
- Department of Discovery Chemistry, BioCryst Pharmaceuticals Inc., Discovery Center of Excellence, 2100 Riverchase Center Building 200, Suite 200 Birmingham, AL, 35244, USA
| | - Krishnan Raman
- Department of Computational Chemistry and Structural Biology, BioCryst Pharmaceuticals Inc., Discovery Center of Excellence, 2100 Riverchase Center Building 200, Suite 200 Birmingham, AL, 35244, USA
| | - Pravin L Kotian
- Department of Discovery Chemistry, BioCryst Pharmaceuticals Inc., Discovery Center of Excellence, 2100 Riverchase Center Building 200, Suite 200 Birmingham, AL, 35244, USA
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Mukhtar SS, Sroor FM, Hafez TS, Abdelraof M, El-Sayed AF, Laboud YN, Hassaneen HM, Saleh FM. Evaluation of Pyrazolyl-Indolizine Derivatives as Antimicrobial Agents: Synthesis, In vitro, In silico ADMET and Molecular Docking Studies. Chem Biodivers 2024; 21:e202400825. [PMID: 38802323 DOI: 10.1002/cbdv.202400825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2024] [Revised: 05/22/2024] [Accepted: 05/27/2024] [Indexed: 05/29/2024]
Abstract
Herein, we report analogues of s-indacene by the synthesis of novel indolizine derivatives. Using chloroform as an appropriate solvent, sixteen derivatives of pyrazolyl-indolizine (4--19) were prepared by the reaction of 3-(dimethylamino)-1-(1H-pyrrol-2-yl)prop-2-en-1-one (1) with hydrazonoyl chloride derivatives (2) in the presence of triethylamine in good to excellent yields. We used NMR spectra, IR, mass spectrometry, as well as elemental analyses to prove the chemical structures and the purity of the synthesized compounds 4-19. Among all tested compounds 5, 9, 13 and 19 had a potent antimicrobial efficiency against Bacillus subtilis, Staphylococcus aureus, Pseudomonas aerginousea, Sallmonella typhemerium, and Candida albicans. Furthermore, a significant increase in lipid peroxidation (LPO) toward the Gram-negative bacteria, Pseudomonas aeruginosa when treated with compound 9 was observed, while compound 13 remarkably increased the cell membrane oxidation of Salmonella typhimurium. Additionally, we utilized docking studies and in silico methods to evaluate the drug-likeness, physicochemical properties, and ADMET profiles of the compounds. The results of the molecular docking simulation revealed that the synthesized compounds displayed decreased binding energy when interacting with the active sites of important enzymes, including Sterol 14-demethylase of C. albicans, Dihydropteroate synthase of S. aureus, LasR of P. aeruginosa, Glucosamine-6-phosphate synthase of S. typhimurium, and Gyrase B of B. subtilis.
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Affiliation(s)
- Shorouk S Mukhtar
- Organometallic and Organometalloid Chemistry Department, National Research Centre, 12622, Cairo, Egypt
| | - Farid M Sroor
- Organometallic and Organometalloid Chemistry Department, National Research Centre, 12622, Cairo, Egypt
| | - Taghrid S Hafez
- Organometallic and Organometalloid Chemistry Department, National Research Centre, 12622, Cairo, Egypt
| | - Mohamed Abdelraof
- Microbial Chemistry Department, Biotechnology Research Institute, National Research Centre, Giza, Egypt
| | - Ahmed F El-Sayed
- Microbial Genetics Department, Biotechnology Research Institute, National Research Centre, Giza, Egypt
- Egypt Center for Research and Regenerative Medicine (ECRRM), Cairo, Egypt
| | - Yara N Laboud
- Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt
| | - Hamdi M Hassaneen
- Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt
| | - Fatma M Saleh
- Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt
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3
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Wang J, Shi D, Wang Z, Ren F, Li X, You Y, Liu X, Lou Y. A Scalable and Metal-Free Synthesis of Indazoles from 2-Aminophenones and In Situ Generated De-Boc-Protected O-Mesitylsulfonyl Hydroxylamine Derivatives. J Org Chem 2023; 88:13049-13056. [PMID: 37647210 DOI: 10.1021/acs.joc.3c01211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
A one-pot metal-free protocol to access indazoles from easily available 2-aminophenones and hydroxylamine derivatives has been achieved. The reaction is operationally simple, mild, and insensitive to air and moisture. A broad range of indazoles were prepared in good to excellent yield (up to 97% yield), and the reaction displayed a broad functional group tolerance. The reaction was performed at gram scale, and its synthetic application was exhibited through the rapid and efficient preparation of bioactive molecule YC-3 and FDA-approved drug axitinib.
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Affiliation(s)
- Jinlong Wang
- School of Pharmacy, Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Medical University, Hefei 230032, China
| | - Dongmin Shi
- School of Pharmacy, Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Medical University, Hefei 230032, China
| | - Zihao Wang
- School of Pharmacy, Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Medical University, Hefei 230032, China
| | - Fucai Ren
- School of Pharmacy, Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Medical University, Hefei 230032, China
| | - Xin Li
- School of Pharmacy, Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Medical University, Hefei 230032, China
| | - Yang'en You
- School of Chemistry and Chemical Engineering, Hefei University of Technology and Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Hefei 230009, China
| | - Xinhua Liu
- School of Pharmacy, Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Medical University, Hefei 230032, China
| | - Yazhou Lou
- School of Pharmacy, Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Medical University, Hefei 230032, China
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4
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Choyal M, Agarwal LK, Gupta N. Regioselective Synthesis of Functionalized Indolizines under Mild Conditions. ORG PREP PROCED INT 2023. [DOI: 10.1080/00304948.2022.2162317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Manisha Choyal
- Centre for Advanced Study, Department of Chemistry, University of Rajasthan, Jaipur, India
| | - Lokesh Kr. Agarwal
- Centre for Advanced Study, Department of Chemistry, University of Rajasthan, Jaipur, India
- Department of Chemistry, MLS University, Udaipur, India
| | - Neelima Gupta
- Centre for Advanced Study, Department of Chemistry, University of Rajasthan, Jaipur, India
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A facile and robust approach for synthesis and structural characterization of an unprecedented ring system of 4H-pyrazolo[3,4-f]indolizine-4,9(2H)-dione derivatives. Tetrahedron 2023. [DOI: 10.1016/j.tet.2023.133303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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6
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da Rocha MJ, Pires CS, Presa MH, Besckow EM, Nunes GD, Gomes CS, Penteado F, Lenardão EJ, Bortolatto CF, Brüning CA. Involvement of the serotonergic system in the antidepressant-like effect of 1-(phenylselanyl)-2-(p-tolyl)indolizine in mice. Psychopharmacology (Berl) 2023; 240:373-389. [PMID: 36645465 DOI: 10.1007/s00213-023-06313-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 01/05/2023] [Indexed: 01/17/2023]
Abstract
RATIONALE Depression is a mental disorder that affects approximately 280 million people worldwide. In the search for new treatments for mood disorders, compounds containing selenium and indolizine derivatives show promising results. OBJECTIVES AND METHODS To evaluate the antidepressant-like effect of 1-(phenylselanyl)-2-(p-tolyl)indolizine (MeSeI) (0.5-50 mg/kg, intragastric-i.g.) on the tail suspension test (TST) and the forced swim test (FST) in adult male Swiss mice and to elucidate the role of the serotonergic system in this effect through pharmacological and in silico approaches, as well to evaluate acute oral toxicity at a high dose (300 mg/kg). RESULTS MeSeI administered 30 min before the FST and the TST reduced immobility time at doses from 1 mg/kg and at 50 mg/kg and increased the latency time for the first episode of immobility, demonstrating an antidepressant-like effect. In the open field test (OFT), MeSeI did not change the locomotor activity. The antidepressant-like effect of MeSeI (50 mg/kg, i.g.) was prevented by the pre-treatment with p-chlorophenylalanine (p-CPA), a selective tryptophan hydroxylase inhibitor (100 mg/kg, intraperitoneally-i.p. for 4 days), with ketanserin, a 5-HT2A/2C receptor antagonist (1 mg/kg, i.p.), and with GR113808, a 5-HT4 receptor antagonist (0.1 mg/kg, i.p.), but not with WAY100635, a selective 5-HT1A receptor antagonist (0.1 mg/kg, subcutaneous-s.c.) and ondansetron, a 5-HT3 receptor antagonist (1 mg/kg, i.p.). MeSeI showed a binding affinity with 5-HT2A, 5 -HT2C, and 5-HT4 receptors by molecular docking. MeSeI (300 mg/kg, i.g.) demonstrated low potential to cause acute toxicity in adult female Swiss mice. CONCLUSION In summary, MeSeI exhibits an antidepressant-like effect mediated by the serotonergic system and could be considered for the development of new treatment strategies for depression.
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Affiliation(s)
- Marcia Juciele da Rocha
- Laboratory of Biochemistry and Molecular Neuropharmacology (LABIONEM), Postgraduate Program in Biochemistry and Bioprospecting (PPGBBio), Center of Chemical, Pharmaceutical and Food Sciences (CCQFA), Federal University of Pelotas (UFPel), Capão Do Leão Campus, Pelotas, RS, 96010-900, Brazil
| | - Camila Simões Pires
- Laboratory of Biochemistry and Molecular Neuropharmacology (LABIONEM), Postgraduate Program in Biochemistry and Bioprospecting (PPGBBio), Center of Chemical, Pharmaceutical and Food Sciences (CCQFA), Federal University of Pelotas (UFPel), Capão Do Leão Campus, Pelotas, RS, 96010-900, Brazil
| | - Marcelo Heinemann Presa
- Laboratory of Biochemistry and Molecular Neuropharmacology (LABIONEM), Postgraduate Program in Biochemistry and Bioprospecting (PPGBBio), Center of Chemical, Pharmaceutical and Food Sciences (CCQFA), Federal University of Pelotas (UFPel), Capão Do Leão Campus, Pelotas, RS, 96010-900, Brazil
| | - Evelyn Mianes Besckow
- Laboratory of Biochemistry and Molecular Neuropharmacology (LABIONEM), Postgraduate Program in Biochemistry and Bioprospecting (PPGBBio), Center of Chemical, Pharmaceutical and Food Sciences (CCQFA), Federal University of Pelotas (UFPel), Capão Do Leão Campus, Pelotas, RS, 96010-900, Brazil
| | - Gustavo D'Avila Nunes
- Laboratory of Biochemistry and Molecular Neuropharmacology (LABIONEM), Postgraduate Program in Biochemistry and Bioprospecting (PPGBBio), Center of Chemical, Pharmaceutical and Food Sciences (CCQFA), Federal University of Pelotas (UFPel), Capão Do Leão Campus, Pelotas, RS, 96010-900, Brazil
| | - Caroline Signorini Gomes
- Clean Organic Synthesis Laboratory (LASOL), Postgraduate Program in Chemistry (PPGQ), Center of Chemical, Pharmaceutical and Food Sciences (CCQFA), Federal University of Pelotas (UFPel), Capão Do Leão Campus, Pelotas, RS, 96010-900, Brazil
| | - Filipe Penteado
- Clean Organic Synthesis Laboratory (LASOL), Postgraduate Program in Chemistry (PPGQ), Center of Chemical, Pharmaceutical and Food Sciences (CCQFA), Federal University of Pelotas (UFPel), Capão Do Leão Campus, Pelotas, RS, 96010-900, Brazil
| | - Eder João Lenardão
- Clean Organic Synthesis Laboratory (LASOL), Postgraduate Program in Chemistry (PPGQ), Center of Chemical, Pharmaceutical and Food Sciences (CCQFA), Federal University of Pelotas (UFPel), Capão Do Leão Campus, Pelotas, RS, 96010-900, Brazil
| | - Cristiani Folharini Bortolatto
- Laboratory of Biochemistry and Molecular Neuropharmacology (LABIONEM), Postgraduate Program in Biochemistry and Bioprospecting (PPGBBio), Center of Chemical, Pharmaceutical and Food Sciences (CCQFA), Federal University of Pelotas (UFPel), Capão Do Leão Campus, Pelotas, RS, 96010-900, Brazil.
| | - César Augusto Brüning
- Laboratory of Biochemistry and Molecular Neuropharmacology (LABIONEM), Postgraduate Program in Biochemistry and Bioprospecting (PPGBBio), Center of Chemical, Pharmaceutical and Food Sciences (CCQFA), Federal University of Pelotas (UFPel), Capão Do Leão Campus, Pelotas, RS, 96010-900, Brazil.
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Mohammadnia M, Aghdastinat H, Kamalzadeh S, Nabaei E. Preparation and Characterization of 2,7-Diaminophenazine Supported on Nanocellulose as Novel Recyclable Nanocatalyst for Synthesis of Isoxazolo[4,3-e]indazole Derivatives and Theoretical Study on the Mechanism using a DFT Method. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2160772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
| | | | | | - Elnaz Nabaei
- Department of Chemistry, Kashan University, kashan, Iran
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8
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Kong M, Zhou X, Chen Q, Zhang F, Zhao Y. Efficient synthesis of novel indolizine C-nucleoside analogues via coupling of sugar alkynes, pyridines and α-bromo carbonyl compounds in one pot. Carbohydr Res 2021; 505:108337. [PMID: 34058545 DOI: 10.1016/j.carres.2021.108337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/25/2021] [Accepted: 05/04/2021] [Indexed: 11/28/2022]
Abstract
The synthesis of novel indolizine C-nucleoside analogues has been achieved by the three-component coupling reaction of sugar alkynes, pyridines and α-bromo carbonyl compounds in one pot. The corresponding products are obtained in good to excellent yields. 49 examples have been given. The synthetic method is convenient, practical and efficient. It is suitable for various substrates including structurally diversified sugar alkynes with sensitive groups. The sugar alkynes include pyranosides, furanosides, and acyclic sugars. A plausible mechanism for the formation of indolizine C-nucleoside analogues has been elucidated.
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Affiliation(s)
- Man Kong
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, Henan, 450001, China
| | - Xiang Zhou
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, Henan, 450001, China
| | - Qianxia Chen
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, Henan, 450001, China
| | - Fuyi Zhang
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, Henan, 450001, China.
| | - Yufen Zhao
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, Henan, 450001, China; Institute of Drug Discovery Technology, Ningbo University, Ningbo, 315211, China
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9
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Xu C, Huang J. Highly Efficient Synthesis of 1H-Indazole-3-carboxylic Acid Derivatives via Diazotization Reaction. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202103008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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10
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Synthesis of 2′,3′,4′-triaryl-5,6-dihydro-8H-spiro[indolizine-7,5′-isoxazolidin]-8-ones via 1,3-dipolar cycloaddition reaction involving (Z)-C-aryl-N-phenylnitrones. Chem Heterocycl Compd (N Y) 2020. [DOI: 10.1007/s10593-020-02774-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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11
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Sahoo SR, Sarkar D, Henkel F, Reuter H. Copper(I)-Catalyzed Synthesis of Functionalized Indolizinones from Substituted Pyridine Homologated Ynones. J Org Chem 2020; 85:902-911. [PMID: 31868359 DOI: 10.1021/acs.joc.9b02853] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient two-component copper-catalyzed cyclization cascade approach toward highly functionalized indolizinone heterocycles has been developed from reactions of pyridine-, isoquinoline-, and quinoline ynones, via 5-exo-dig cyclization. The catalysis involves the activation by diorgano diselenide and diorgano disulfide and also their incorporation into the indolizinone core. In addition, the obtained substituted indolizinones were readily transformed into 1-(organochalcogenyl)indolizin-2-ols, which are important building blocks in organic synthesis.
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Affiliation(s)
- Sushree Ranjan Sahoo
- Organic Synthesis and Molecular Engineering Laboratory, Department of Chemistry , National Institute of Technology , Rourkela 769008 , India
| | - Debayan Sarkar
- Organic Synthesis and Molecular Engineering Laboratory, Department of Chemistry , National Institute of Technology , Rourkela 769008 , India
| | - Felix Henkel
- Institute of Chemistry of New Materials , University of Osnabrück , Barbarastraβe-6 , Osnabrück 49076 , Germany
| | - Hans Reuter
- Institute of Chemistry of New Materials , University of Osnabrück , Barbarastraβe-6 , Osnabrück 49076 , Germany
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Alım Z, Kılıç D, Demir Y. Some indazoles reduced the activity of human serum paraoxonase 1, an antioxidant enzyme: in vitro inhibition and molecular modeling studies. Arch Physiol Biochem 2019; 125:387-395. [PMID: 29741961 DOI: 10.1080/13813455.2018.1470646] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Background: Paraoxonase 1 (PON1: EC 3.1.8.1) is a vital antioxidant enzyme against mainly atherosclerosis and many other diseases associated with oxidative stress. Thus, studies related to PON1 have an important place in the pharmacology. In this study, we aimed to evaluate the in vitro inhibition effects of some indazoles on the activity of human PON1. Methods: PON1 was purified from human serum with a specific activity of 5000 U/mg and 13.50% yield by using simple chromatographic methods. Results: The indazoles showed Ki values in a range of 26.0 ± 3.00-111 ± 31.0 μM against hPON1. All these indazoles exhibited competitive inhibition. In addition, molecular docking studies were performed in order to assess the probable binding mechanisms into the active site of hPON1. Molecular modeling studies confirmed our results. Conclusions: Inhibition of PON1 by indazoles supplies a verification to further consideration of limitation dosage of indazole molecule groups as drug.
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Affiliation(s)
- Zuhal Alım
- Faculty of Science and Arts, Department of Chemistry, Ahi Evran University , Kırşehir , Turkey
| | - Deryanur Kılıç
- Faculty of Science and Arts, Department of Chemistry, Aksaray University , Aksaray , Turkey
| | - Yeliz Demir
- Faculty of Sciences, Department of Chemistry, Biochemistry Division, Ataturk University , Erzurum , Turkey
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13
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Lu M, Shi F, Ji M, Kan Y, Hu H. Palladium Catalyzed C−H Olefination of Indolizines at the 1‐Position with Molecular Oxygen as the Terminal Oxidant. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900267] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Mingzhu Lu
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials School of Chemistry and Chemical EngineeringHuaiyin Normal University Huaian 223300 P. R. China
| | - Fei Shi
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials School of Chemistry and Chemical EngineeringHuaiyin Normal University Huaian 223300 P. R. China
| | - Meishan Ji
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials School of Chemistry and Chemical EngineeringHuaiyin Normal University Huaian 223300 P. R. China
| | - Yuhe Kan
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials School of Chemistry and Chemical EngineeringHuaiyin Normal University Huaian 223300 P. R. China
| | - Huayou Hu
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials School of Chemistry and Chemical EngineeringHuaiyin Normal University Huaian 223300 P. R. China
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14
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Synthesis of novel dispiro[indoline-3,2'-pyrrolidine-3',10”-thiazolo[3',2':1,2]pyrimido[5,4-g]indolizine] derivatives by 1,3-dipolar cycloaddition reaction. Chem Heterocycl Compd (N Y) 2019. [DOI: 10.1007/s10593-019-02453-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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15
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Ramesh V, Devi NS, Velusamy M, Shanmugam S. Catalyst free Synthesis of Highly Functionalized Indolizines from
In Situ
Generated Pyridinium Ylides
via
One‐Pot Multicomponent Reaction. ChemistrySelect 2019. [DOI: 10.1002/slct.201900665] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Vediyappan Ramesh
- Department of Organic ChemistrySchool of ChemistryMadurai Kamaraj University Madurai - 625 021 India
| | | | - Marappan Velusamy
- Department of ChemistryNorth Eastern Hill University Shillong – 793022 India
| | - Sivakumar Shanmugam
- Department of Organic ChemistrySchool of ChemistryMadurai Kamaraj University Madurai - 625 021 India
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Abstract
Amongst nitrogen heterocycles of different ring sizes and oxidation statuses, dihydropyridines (DHP) occupy a prominent role due to their synthetic versatility and occurrence in medicinally relevant compounds. One of the most straightforward synthetic approaches to polysubstituted DHP derivatives is provided by nucleophilic dearomatization of readily assembled pyridines. In this article, we collect and summarize nucleophilic dearomatization reactions of - pyridines reported in the literature between 2010 and mid-2018, complementing and updating previous reviews published in the early 2010s dedicated to various aspects of pyridine chemistry. Since functionalization of the pyridine nitrogen, rendering a (transient) pyridinium ion, is usually required to render the pyridine nucleus sufficiently electrophilic to suffer the attack of a nucleophile, the material is organized according to the type of N-functionalization. A variety of nucleophilic species (organometallic reagents, enolates, heteroaromatics, umpoled aldehydes) can be productively engaged in pyridine dearomatization reactions, including catalytic asymmetric implementations, providing useful and efficient synthetic platforms to (enantioenriched) DHPs. Conversely, pyridine nitrogen functionalization can also lead to pyridinium ylides. These dipolar species can undergo a variety of dipolar cycloaddition reactions with electron-poor dipolarophiles, affording polycyclic frameworks and embedding a DHP moiety in their structures.
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17
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Ren D, Lei J, Yu X, Huang Y, Li X. Synthesis of 4-Aryl-3,4,5,6-Tetrahydropyrimido[5,4-g]Indolizine-2(1H)-Thione. JOURNAL OF CHEMICAL RESEARCH 2018. [DOI: 10.3184/174751918x15426288948686] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A number of 4-aryl-3,4,5,6-tetrahydropyrimido[5,4-g]indolizine-2(1H)-thiones were synthesised by the reaction of (7E)-7-arylidene-6,7-dihydroindolizin-8(5H)-one and thiourea in the presence of potassium hydroxide in moderate yields. The structures of all the products were characterised thoroughly by NMR, IR and HRMS together with X-ray crystallographic analysis.
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Affiliation(s)
- Demin Ren
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecules, Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, P.R. China
| | - Jiaying Lei
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecules, Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, P.R. China
| | - Xianyong Yu
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecules, Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, P.R. China
| | - Yulin Huang
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecules, Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, P.R. China
| | - Xiaofang Li
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecules, Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, P.R. China
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18
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Alim Z. 1H-indazole molecules reduced the activity of human erythrocytes carbonic anhydrase I and II isoenzymes. J Biochem Mol Toxicol 2018; 32:e22194. [DOI: 10.1002/jbt.22194] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 05/16/2018] [Accepted: 06/25/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Zuhal Alim
- Department of Chemistry, Faculty of Science and Arts; Kırşehir Ahi Evran University; Kırşehir 40100 Turkey
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19
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Nirogi R, Mohammed AR, Shinde AK, Gagginapally SR, Kancharla DM, Middekadi VR, Bogaraju N, Ravella SR, Singh P, Birangal SR, Subramanian R, Palacharla RC, Benade V, Muddana N, Jayarajan P. Synthesis, Structure-Activity Relationships, and Preclinical Evaluation of Heteroaromatic Amides and 1,3,4-Oxadiazole Derivatives as 5-HT 4 Receptor Partial Agonists. J Med Chem 2018; 61:4993-5008. [PMID: 29763304 DOI: 10.1021/acs.jmedchem.8b00457] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Alzheimer's disease (AD) is a neurodegenerative disorder that has a higher prevalence and incidence in people older than 60 years. The need for improved AD therapies is unmet as the current therapies are symptomatic with modest efficacy. Partial agonists of the 5-HT4 receptor (5-HT4R) offer both symptomatic and disease-modifying treatments as they shift amyloid-precursor-protein (APP) processing from the amyloidogenic pathway to the nonamyloidogenic pathway by activating the α-secretase enzyme. In addition, they also offer symptomatic treatment by increasing levels of the neurotransmitter acetylcholine in the brain. Because of this fascinating dual mechanism of action, several chemical scaffolds having 5-HT4R pharmacophores were designed and evaluated. Most of the synthesized compounds showed potent in vitro affinities and in vivo efficacies. Upon analysis of focused structure-activity relationships, compound 4o was identified as a potent 5-HT4R partial agonist with favorable ADME properties and good in vivo efficacy. GR-125487, a selective 5-HT4R antagonist, attenuated the activity of compound 4o in the novel-object-recognition-test cognition model.
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Affiliation(s)
- Ramakrishna Nirogi
- Discovery Research , Suven Life Sciences Limited , Serene Chambers, Road-5, Avenue-7, Banjara Hills , Hyderabad 500 034 , India
| | - Abdul Rasheed Mohammed
- Discovery Research , Suven Life Sciences Limited , Serene Chambers, Road-5, Avenue-7, Banjara Hills , Hyderabad 500 034 , India
| | - Anil K Shinde
- Discovery Research , Suven Life Sciences Limited , Serene Chambers, Road-5, Avenue-7, Banjara Hills , Hyderabad 500 034 , India
| | - Shankar Reddy Gagginapally
- Discovery Research , Suven Life Sciences Limited , Serene Chambers, Road-5, Avenue-7, Banjara Hills , Hyderabad 500 034 , India
| | - Durga Malleshwari Kancharla
- Discovery Research , Suven Life Sciences Limited , Serene Chambers, Road-5, Avenue-7, Banjara Hills , Hyderabad 500 034 , India
| | - Vanaja Reddy Middekadi
- Discovery Research , Suven Life Sciences Limited , Serene Chambers, Road-5, Avenue-7, Banjara Hills , Hyderabad 500 034 , India
| | - Narsimha Bogaraju
- Discovery Research , Suven Life Sciences Limited , Serene Chambers, Road-5, Avenue-7, Banjara Hills , Hyderabad 500 034 , India
| | - Srinivasa Rao Ravella
- Discovery Research , Suven Life Sciences Limited , Serene Chambers, Road-5, Avenue-7, Banjara Hills , Hyderabad 500 034 , India
| | - Pooja Singh
- Discovery Research , Suven Life Sciences Limited , Serene Chambers, Road-5, Avenue-7, Banjara Hills , Hyderabad 500 034 , India
| | - Sumit Raosaheb Birangal
- Discovery Research , Suven Life Sciences Limited , Serene Chambers, Road-5, Avenue-7, Banjara Hills , Hyderabad 500 034 , India
| | - Ramkumar Subramanian
- Discovery Research , Suven Life Sciences Limited , Serene Chambers, Road-5, Avenue-7, Banjara Hills , Hyderabad 500 034 , India
| | - Raghava Choudary Palacharla
- Discovery Research , Suven Life Sciences Limited , Serene Chambers, Road-5, Avenue-7, Banjara Hills , Hyderabad 500 034 , India
| | - Vijay Benade
- Discovery Research , Suven Life Sciences Limited , Serene Chambers, Road-5, Avenue-7, Banjara Hills , Hyderabad 500 034 , India
| | - Nageswararao Muddana
- Discovery Research , Suven Life Sciences Limited , Serene Chambers, Road-5, Avenue-7, Banjara Hills , Hyderabad 500 034 , India
| | - Pradeep Jayarajan
- Discovery Research , Suven Life Sciences Limited , Serene Chambers, Road-5, Avenue-7, Banjara Hills , Hyderabad 500 034 , India
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20
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Experimental and theoretical investigations on acid catalysed stereoselective synthesis of new indazolyl-thiazole derivatives. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.02.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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21
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Sowmiah S, Esperança JMSS, Rebelo LPN, Afonso CAM. Pyridinium salts: from synthesis to reactivity and applications. Org Chem Front 2018. [DOI: 10.1039/c7qo00836h] [Citation(s) in RCA: 157] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This review highlights the pyridinium salts in terms of their natural occurrence, synthesis, reactivity, biological properties, and diverse applications.
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Affiliation(s)
- Subbiah Sowmiah
- Instituto de Tecnologia Química e Biológica António Xavier
- Universidade Nova de Lisboa
- 2780-157 Oeiras
- Portugal
- Research Institute for Medicines (iMed.ULisboa)
| | - José M. S. S. Esperança
- Instituto de Tecnologia Química e Biológica António Xavier
- Universidade Nova de Lisboa
- 2780-157 Oeiras
- Portugal
- LAQV-REQUIMTE
| | - Luís P. N. Rebelo
- Instituto de Tecnologia Química e Biológica António Xavier
- Universidade Nova de Lisboa
- 2780-157 Oeiras
- Portugal
- LAQV-REQUIMTE
| | - Carlos A. M. Afonso
- Research Institute for Medicines (iMed.ULisboa)
- Faculty of Pharmacy
- Universidade de Lisboa
- 1649-009 Lisboa
- Portugal
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22
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Angapelly S, Sri Ramya P, SunithaRani R, Kumar CG, Kamal A, Arifuddin M. Ultrasound assisted, VOSO4 catalyzed synthesis of 4-thiazolidinones: Antimicrobial evaluation of indazole-4-thiazolidinone derivatives. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.10.070] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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23
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Chen CY, He F, Tang G, Ding H, Wang Z, Li D, Deng L, Faessler R. A Copper-Catalyzed Tandem C-H ortho
-Hydroxylation and N-N Bond-Formation Transformation: Expedited Synthesis of 1-(ortho
-Hydroxyaryl)-1H
-indazoles. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701149] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Cheng-yi Chen
- API Small Molecule Development; Janssen Pharmaceutica; Hochstrasse 201 8200 Schaffhausen Switzerland
| | - Fengxian He
- Porton (Shanghai) R&D Center; 1299 Ziyue Road, Zizhu Science Park 200241 Shanghai Minhang District China
| | - Guangrong Tang
- Porton (Shanghai) R&D Center; 1299 Ziyue Road, Zizhu Science Park 200241 Shanghai Minhang District China
| | - Han Ding
- Porton (Shanghai) R&D Center; 1299 Ziyue Road, Zizhu Science Park 200241 Shanghai Minhang District China
| | - Zhaobin Wang
- Porton (Shanghai) R&D Center; 1299 Ziyue Road, Zizhu Science Park 200241 Shanghai Minhang District China
| | - Dawei Li
- Porton (Shanghai) R&D Center; 1299 Ziyue Road, Zizhu Science Park 200241 Shanghai Minhang District China
| | - Lujiang Deng
- Porton (Shanghai) R&D Center; 1299 Ziyue Road, Zizhu Science Park 200241 Shanghai Minhang District China
| | - Roger Faessler
- API Small Molecule Development; Janssen Pharmaceutica; Hochstrasse 201 8200 Schaffhausen Switzerland
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24
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Zhang S, Hu X, Tao H, Liu H, Li X. Synthesis of Novel Spiro(Indolizine-Pyrazole) Derivatives via 1,3-Dipolar Cycloaddition of Nitrilimine. JOURNAL OF CHEMICAL RESEARCH 2017. [DOI: 10.3184/174751917x15064232103100] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The 1,3-dipolar cycloaddition of nitrilimine, generated in situ from N′-phenylbenzohydrazonoyl chloride and triethylamine, to 7-arylmethylidene-6,7-dihydroindolizin-8( 5H)-one afforded novel 4′-aryl-2′,5′-diphenyl-2′,4′,5,6-tetrahydro-8 H-spiro(indolazine-7,3′-pyrazol)-8-ones in moderate yields. The structures of all the products were characterised thoroughly by NMR, infrared spectroscopy and HRMS. The structure and stereochemistry was confirmed by X-ray diffraction analysis.
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Affiliation(s)
- Shaowei Zhang
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecules, Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, P.R. China
| | - Xiaolian Hu
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecules, Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, P.R. China
| | - Hongwen Tao
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecules, Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, P.R. China
| | - Haochong Liu
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecules, Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, P.R. China
| | - Xiaofang Li
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecules, Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, P.R. China
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25
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Sabatini MT, Boulton LT, Sheppard TD. Borate esters: Simple catalysts for the sustainable synthesis of complex amides. SCIENCE ADVANCES 2017; 3:e1701028. [PMID: 28948222 PMCID: PMC5609808 DOI: 10.1126/sciadv.1701028] [Citation(s) in RCA: 107] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Accepted: 08/28/2017] [Indexed: 05/17/2023]
Abstract
Chemical reactions for the formation of amide bonds are among the most commonly used transformations in organic chemistry, yet they are often highly inefficient. A novel protocol for amidation using a simple borate ester catalyst is reported. The process presents significant improvements over other catalytic amidation methods in terms of efficiency and safety, with an unprecedented substrate scope including functionalized heterocycles and even unprotected amino acids. The method was used to access a wide range of functionalized amide derivatives, including pharmaceutically relevant targets, important synthetic intermediates, a catalyst, and a natural product.
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Affiliation(s)
- Marco T. Sabatini
- Christopher Ingold Laboratories, Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, UK
| | - Lee T. Boulton
- Medicines Research Centre, GlaxoSmithKline, Gunnels Wood Road, Stevenage, Herts SG1 2NY, UK
| | - Tom D. Sheppard
- Christopher Ingold Laboratories, Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, UK
- Corresponding author.
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26
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Wang W, Han J, Sun J, Liu Y. CuBr-Catalyzed Aerobic Decarboxylative Cycloaddition for the Synthesis of Indolizines under Solvent-Free Conditions. J Org Chem 2017; 82:2835-2842. [DOI: 10.1021/acs.joc.6b02455] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Wenhui Wang
- Jiangsu
Key Laboratory of Green Synthesis for Functional Materials, School
of Chemistry and Chemical Engineering, Jiangsu Normal University, Xuzhou 221116, Jiangsu P. R. China
| | - Junwen Han
- Jiangsu
Key Laboratory of Green Synthesis for Functional Materials, School
of Chemistry and Chemical Engineering, Jiangsu Normal University, Xuzhou 221116, Jiangsu P. R. China
| | - Jinwei Sun
- Jiangsu
Key Laboratory of Green Synthesis for Functional Materials, School
of Chemistry and Chemical Engineering, Jiangsu Normal University, Xuzhou 221116, Jiangsu P. R. China
- School of Environmental Science & Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, P. R. China
| | - Yun Liu
- Jiangsu
Key Laboratory of Green Synthesis for Functional Materials, School
of Chemistry and Chemical Engineering, Jiangsu Normal University, Xuzhou 221116, Jiangsu P. R. China
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27
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Liu Y, Hu H, Zhou J, Wang W, He Y, Wang C. Application of primary halogenated hydrocarbons for the synthesis of 3-aryl and 3-alkyl indolizines. Org Biomol Chem 2017; 15:5016-5024. [DOI: 10.1039/c7ob00980a] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A transition-metal-free synthetic route to 3-aryl and 3-alkyl indolizines from electron-deficient alkenes, pyridines and primary halogenated hydrocarbons is reported for the first time using a tandem reaction.
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Affiliation(s)
- Yan Liu
- School of Material Science and Engineering
- Southwest University of Science and Technology
- Mianyang 621010
- P. R. China
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials
| | - Huayou Hu
- School of Material Science and Engineering
- Southwest University of Science and Technology
- Mianyang 621010
- P. R. China
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials
| | - Junyu Zhou
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- P. R. China
| | - Wenhui Wang
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials
- School of Chemistry and Chemical Engineering
- Huaiyin Normal University
- Huaian 223300
- P. R. China
| | - Youliang He
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials
- School of Chemistry and Chemical Engineering
- Huaiyin Normal University
- Huaian 223300
- P. R. China
| | - Chao Wang
- School of Material Science and Engineering
- Southwest University of Science and Technology
- Mianyang 621010
- P. R. China
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28
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Xing Y, Zhang M, Ciccarelli S, Lee J, Catano B. AuIII-Catalyzed Formation of α-Halomethyl Ketones from Terminal Alkynes. European J Org Chem 2016. [DOI: 10.1002/ejoc.201601416] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Yalan Xing
- Department of Chemistry; William Paterson University of New Jersey; 300 Pompton Rd 07470 Wayne NJ USA
| | - Ming Zhang
- Department of Chemistry; William Paterson University of New Jersey; 300 Pompton Rd 07470 Wayne NJ USA
| | - Sarah Ciccarelli
- Department of Chemistry; William Paterson University of New Jersey; 300 Pompton Rd 07470 Wayne NJ USA
| | - John Lee
- Department of Chemistry; William Paterson University of New Jersey; 300 Pompton Rd 07470 Wayne NJ USA
| | - Bryant Catano
- Department of Chemistry; William Paterson University of New Jersey; 300 Pompton Rd 07470 Wayne NJ USA
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29
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Guo L, Chen Y, Zhang R, Peng Q, Xu L, Pan X. Rhodium-Catalyzed Regioselective C7-Olefination of Indazoles Using an N-Amide Directing Group. Chem Asian J 2016; 12:289-292. [DOI: 10.1002/asia.201601456] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2016] [Revised: 11/30/2016] [Indexed: 01/12/2023]
Affiliation(s)
- Lei Guo
- School of Perfume and Aroma Technology; Shanghai Institute of Technology; 100 Haiquan Road Shanghai 201418 China
| | - Yanyu Chen
- School of Perfume and Aroma Technology; Shanghai Institute of Technology; 100 Haiquan Road Shanghai 201418 China
| | - Rong Zhang
- School of Perfume and Aroma Technology; Shanghai Institute of Technology; 100 Haiquan Road Shanghai 201418 China
| | - Qiujun Peng
- School of Perfume and Aroma Technology; Shanghai Institute of Technology; 100 Haiquan Road Shanghai 201418 China
| | - Lanting Xu
- Shanghai Research Institute of Fragrance and Flavor Industry; 480 Nanning Road Shanghai 200232 China
| | - Xianhua Pan
- Shanghai Research Institute of Fragrance and Flavor Industry; 480 Nanning Road Shanghai 200232 China
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30
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31
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Functionalization of indazoles by means of transition metal-catalyzed cross-coupling reactions. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.08.031] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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32
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Sandeep C, Venugopala KN, Gleiser RM, Chetram A, Padmashali B, Kulkarni RS, Venugopala R, Odhav B. Greener synthesis of indolizine analogues using water as a base and solvent: study for larvicidal activity against Anopheles arabiensis. Chem Biol Drug Des 2016; 88:899-904. [PMID: 27440719 DOI: 10.1111/cbdd.12823] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2016] [Revised: 05/19/2016] [Accepted: 07/06/2016] [Indexed: 11/29/2022]
Abstract
Greener synthesis of a series of novel indolizine analogues have been achieved by the cyclization of aromatic cycloimmonium ylides with electron-deficient alkynes in the presence of water as the base and solvent at 80 °C. Yield of the title compounds was good and reactions performed were eco-friendly. The structures of these newly synthesized compounds have been confirmed by spectroscopic techniques such as FTIR, NMR, LC-MS, and elemental analysis. Characterized title compounds were evaluated for larvicidal activity against Anopheles arabiensis by standard WHO larvicidal assay using Temefos as standard at 4 μg/mL. Title compounds 2e, 2f, and 2g emerged as promising larvicidal agents.
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Affiliation(s)
| | - Katharigatta N Venugopala
- Department of Biotechnology and Food Technology, Durban University of Technology, Durban, South Africa.
| | - Raquel M Gleiser
- CREAN-IMBIV (CONICET-UNC), Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Abeen Chetram
- Department of Biotechnology and Food Technology, Durban University of Technology, Durban, South Africa
| | - Basavaraj Padmashali
- Department of Chemistry, Sahyadri Science College (Autonomous), Shimoga, India. .,Department of Studies and Research in Chemistry, School of Basic Sciences, Rani Channamma University, Belagavi, Karnataka, India.
| | | | - Rashmi Venugopala
- Department of Public Health Medicine, University of KwaZulu-Natal, Howard College Campus, Durban, South Africa
| | - Bharti Odhav
- Department of Biotechnology and Food Technology, Durban University of Technology, Durban, South Africa
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33
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Poorhaji S, Pordel M, Ramezani S. New heterocyclic green, blue and orange dyes from indazole: Synthesis, tautomerism, alkylation studies, spectroscopic characterization and DFT/TD-DFT calculations. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.04.078] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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34
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Li L, Wang H, Yu S, Yang X, Li X. Cooperative Co(III)/Cu(II)-Catalyzed C–N/N–N Coupling of Imidates with Anthranils: Access to 1H-Indazoles via C–H Activation. Org Lett 2016; 18:3662-5. [DOI: 10.1021/acs.orglett.6b01716] [Citation(s) in RCA: 106] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lei Li
- Dalian Institute of Chemical
Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - He Wang
- Dalian Institute of Chemical
Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Songjie Yu
- Dalian Institute of Chemical
Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Xifa Yang
- Dalian Institute of Chemical
Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Xingwei Li
- Dalian Institute of Chemical
Physics, Chinese Academy of Sciences, Dalian 116023, China
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35
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Affiliation(s)
- Khaled M. Elattar
- Chemistry Department, Faculty of Science, Mansoura University, Mansoura, Egypt
| | - Ibrahim Youssef
- Chemistry Department, Faculty of Science, Mansoura University, Mansoura, Egypt
| | - Ahmed A. Fadda
- Chemistry Department, Faculty of Science, Mansoura University, Mansoura, Egypt
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36
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Sreenivasulu R, Sujitha P, Jadav SS, Ahsan MJ, Kumar CG, Raju RR. Synthesis, antitumor evaluation, and molecular docking studies of indole–indazolyl hydrazide–hydrazone derivatives. MONATSHEFTE FUR CHEMIE 2016. [DOI: 10.1007/s00706-016-1750-6] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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37
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Wang Q, Li X. Synthesis of 1H-Indazoles from Imidates and Nitrosobenzenes via Synergistic Rhodium/Copper Catalysis. Org Lett 2016; 18:2102-5. [DOI: 10.1021/acs.orglett.6b00727] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Qiang Wang
- Dalian
Institute of Chemical
Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Xingwei Li
- Dalian
Institute of Chemical
Physics, Chinese Academy of Sciences, Dalian 116023, China
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38
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Chen CY, Tang G, He F, Wang Z, Jing H, Faessler R. A Synthesis of 1H-Indazoles via a Cu(OAc)2-Catalyzed N–N Bond Formation. Org Lett 2016; 18:1690-3. [DOI: 10.1021/acs.orglett.6b00611] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Cheng-yi Chen
- Janssen R&D, Pharmaceutical Development and Manufacturing Sciences, Small Molecule API Switzerland, Cilag AG, Hochstrasse 201, 8205 Schaffhausen, Switzerland
| | - Guangrong Tang
- Porton (Shanghai) R&D Center, 1299 Ziyue Road, Zizhu Science Park, Minhang District, Shanghai 200241, China
| | - Fengxian He
- Porton (Shanghai) R&D Center, 1299 Ziyue Road, Zizhu Science Park, Minhang District, Shanghai 200241, China
| | - Zhaobin Wang
- Porton (Shanghai) R&D Center, 1299 Ziyue Road, Zizhu Science Park, Minhang District, Shanghai 200241, China
| | - Hailin Jing
- Porton (Shanghai) R&D Center, 1299 Ziyue Road, Zizhu Science Park, Minhang District, Shanghai 200241, China
| | - Roger Faessler
- Janssen R&D, Pharmaceutical Development and Manufacturing Sciences, Small Molecule API Switzerland, Cilag AG, Hochstrasse 201, 8205 Schaffhausen, Switzerland
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39
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Synthesis and biological activities of indolizine derivatives as alpha-7 nAChR agonists. Eur J Med Chem 2016; 115:94-108. [PMID: 26994846 DOI: 10.1016/j.ejmech.2016.03.016] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 03/03/2016] [Accepted: 03/04/2016] [Indexed: 12/16/2022]
Abstract
Human α7 nicotinic acetylcholine receptor (nAChR) is a promising therapeutic target for the treatment of schizophrenia accompanied with cognitive impairment. Herein, we report the synthesis and agonistic activities of a series of indolizine derivatives targeting to α7 nAChR. The results show that all synthesized compounds have affinity to α7 nAChR and some give strong agonistic activity, particularly most active agonists show higher potency than control EVP-6124. The docking and structure-activity relationship studies provide insights to develop more potent novel α7 nAChR agonists.
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40
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Chemoselective synthesis of novel aminoindolizines using aminopyridines, acetylenic diesters and α-halo ketones. CHINESE CHEM LETT 2016. [DOI: 10.1016/j.cclet.2015.11.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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41
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Ghaemi M, Pordel M. Isoxazolo[4,3-e]indazole as a new heterocyclic system: design, synthesis, spectroscopic characterization, and antibacterial activity. Chem Heterocycl Compd (N Y) 2016. [DOI: 10.1007/s10593-016-1833-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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42
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Aggarwal T, Kumar S, Verma AK. Iodine-mediated synthesis of heterocycles via electrophilic cyclization of alkynes. Org Biomol Chem 2016; 14:7639-53. [DOI: 10.1039/c6ob01054g] [Citation(s) in RCA: 96] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Syntheses of heterocyclesvia5-exoor 6-endo-digiodocyclizations from alkynes.
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Affiliation(s)
- Trapti Aggarwal
- Synthetic Organic Chemistry Research Laboratory
- Department of Chemistry
- University of Delhi
- Delhi
- India
| | - Sonu Kumar
- Synthetic Organic Chemistry Research Laboratory
- Department of Chemistry
- University of Delhi
- Delhi
- India
| | - Akhilesh K. Verma
- Synthetic Organic Chemistry Research Laboratory
- Department of Chemistry
- University of Delhi
- Delhi
- India
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43
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Ramesha AB, Sandhya NC, Pavan Kumar CS, Hiremath M, Mantelingu K, Rangappa KS. A novel approach for the synthesis of imidazo and triazolopyridines from dithioesters. NEW J CHEM 2016. [DOI: 10.1039/c6nj01038e] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Various imidazo- and triazolo-pyridines were synthesised by the intramolecular cyclization of pyridine 2-methylamine and dithioesters under mild conditions.
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Li SS, Li WH, Zhang GT, Xia YQ, Liu CF, Su F, Zhang XM, Dong L. One-pot construction of fused polycyclic heteroarenes involving 7-azaindoles and α,β-unsaturated ketones. Org Biomol Chem 2016; 14:7859-63. [PMID: 27492814 DOI: 10.1039/c6ob01437b] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel one-pot synthesis of π-conjugated polycyclic compounds has been realized between 7-azaindoles and α,β-unsaturated ketones.
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Affiliation(s)
- Shuai-Shuai Li
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- China
| | - Wei-Huan Li
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- China
| | - Guo-Tai Zhang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- China
| | - Ying-Qi Xia
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- China
| | - Chen-Fei Liu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- China
| | - Fu Su
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- China
| | - Xiao-Mei Zhang
- Key Laboratory for Asymmetric Synthesis and Chiral Technology of Sichuan Province
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- China
| | - Lin Dong
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- China
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45
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Directed assembly of cobalt(II) 1-H-indazole-3-carboxylic acid coordination networks by bipyridine and its derivatives: structural versatility, electrochemical properties, and antifungal activity. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2015. [DOI: 10.1007/s13738-015-0792-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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46
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Campos J, Aldridge S. Catalytic Borylation using an Air‐Stable Zinc Boryl Reagent: Systematic Access to Elusive Acylboranes. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201507627] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Jesús Campos
- Inorganic Chemistry Laboratory, Dept. of Chemistry, University of Oxford, South Parks Rd, Oxford (UK) OX1 3QR
| | - Simon Aldridge
- Inorganic Chemistry Laboratory, Dept. of Chemistry, University of Oxford, South Parks Rd, Oxford (UK) OX1 3QR
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47
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Campos J, Aldridge S. Catalytic Borylation using an Air-Stable Zinc Boryl Reagent: Systematic Access to Elusive Acylboranes. Angew Chem Int Ed Engl 2015; 54:14159-63. [DOI: 10.1002/anie.201507627] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Indexed: 12/11/2022]
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48
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Naas M, El Kazzouli S, Essassi EM, Bousmina M, Guillaumet G. Palladium-Catalyzed Oxidative Direct C3- and C7-Alkenylations of Indazoles: Application to the Synthesis of Gamendazole. Org Lett 2015; 17:4320-3. [DOI: 10.1021/acs.orglett.5b02136] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mohammed Naas
- Institut
de Chimie Organique et Analytique (ICOA), Université d’Orléans, UMR CNRS, 7311, BP 6759, Orléans Cedex 2 45067, France
- Faculté
des Sciences, Université Mohammed V de Rabat, BP 1014, Avenue Ibn Batouta, 10000 Rabat, Morocco
| | - Saïd El Kazzouli
- Euromed
Research Institute, Engineering Division, Euro-Mediterranean University of Fes, Fès-Shore, Route de Sidi Hrazem, 30070 Fès, Morocco
| | - El Mokhtar Essassi
- Faculté
des Sciences, Université Mohammed V de Rabat, BP 1014, Avenue Ibn Batouta, 10000 Rabat, Morocco
| | - Mosto Bousmina
- Euromed
Research Institute, Engineering Division, Euro-Mediterranean University of Fes, Fès-Shore, Route de Sidi Hrazem, 30070 Fès, Morocco
| | - Gérald Guillaumet
- Institut
de Chimie Organique et Analytique (ICOA), Université d’Orléans, UMR CNRS, 7311, BP 6759, Orléans Cedex 2 45067, France
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49
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Wang JJ, Feng X, Xun Z, Shi DQ, Huang ZB. Multicomponent Strategy to Pyrazolo[3,4-e]indolizine Derivatives under Microwave Irradiation. J Org Chem 2015; 80:8435-42. [PMID: 26193420 DOI: 10.1021/acs.joc.5b01314] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A simple and efficient one-pot construction of pyrazolo[3,4-e]indolizine derivatives via a diethylamine-catalyzed three-component domino reaction of arylglyoxals, cyclic 1,3-diones, and 5-aminopyrazoles under microwave irradiation is described. In this one-pot transformation, seven bonds and two new rings are efficiently formed. This synthesis was confirmed to follow the group-assisted-purification (GAP) chemistry process, which can avoid traditional recrystallization or chromatography purification methods.
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Affiliation(s)
- Jian-Jun Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Xian Feng
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Zhan Xun
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Da-Qing Shi
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Zhi-Bin Huang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
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50
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Tang JS, Xie BX, Bian XL, Xue Y, Wei NN, Zhou JH, Hao YC, Li G, Zhang LR, Wang KW. Identification and in vitro pharmacological characterization of a novel and selective α7 nicotinic acetylcholine receptor agonist, Br-IQ17B. Acta Pharmacol Sin 2015; 36:800-12. [PMID: 25948478 PMCID: PMC4648113 DOI: 10.1038/aps.2015.9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Accepted: 03/03/2015] [Indexed: 12/14/2022] Open
Abstract
Aim: Alpha7-nicotinic acetylcholine receptor (α7 nAChR) is a ligand-gated Ca2+-permeable ion channel implicated in cognition and neuropsychiatric disorders. Activation of α7 nAChR improves learning, memory, and sensory gating in animal models. To identify novel α7 nAChR agonists, we synthesized a series of small molecules and characterized a representative compound, Br-IQ17B, N-[(3R)-1-azabicyclo[2,2,2]oct-3-yl]-5-bromoindolizine-2-carboxamide, which specifically activates α7 nAChR. Methods: Two-electrode voltage clamp (TEVC) recordings were primarily used for screening in Xenopus oocytes expressing human α7 nAChR. Assays, including radioisotope ligand binding, Western blots, whole-cell recordings of hippocampal culture neurons, and spontaneous IPSC recordings of brain slices, were also utilized to evaluate and confirm the specific activation of α7 nAChR by Br-IQ17B. Results: Br-IQ17B potently activates α7 nAChR with an EC50 of 1.8±0.2 μmol/L. Br-IQ17B is selective over other subtypes such as α4β2 and α3β4, but it blocks 5-HT3A receptors. Br-IQ17B displaced binding of the α7 blocker [3H]-MLA to hippocampal crude membranes with a Ki of 14.9±3.2 nmol/L. In hippocampal neurons, Br-IQ17B evoked α7-like currents that were inhibited by MLA and enhanced in the presence of the α7 PAM PNU-120596. In brain slice recordings, Br-IQ17B enhanced GABAergic synaptic transmission in CA1 neurons. Mechanistically, Br-IQ17B increased ERK1/2 phosphorylation that was MLA-sensitive. Conclusion: We identified the novel, potent, and selective α7 agonist Br-IQ17B, which enhances synaptic transmission. Br-IQ17B may be a helpful tool to understand new aspects of α7 nAChR function, and it also has potential for being developed as therapy for schizophrenia and cognitive deficits.
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