1
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Li MM, Huang H, Pu Y, Tian W, Deng Y, Lu J. A close look into the biological and synthetic aspects of fused pyrazole derivatives. Eur J Med Chem 2022; 243:114739. [PMID: 36126386 DOI: 10.1016/j.ejmech.2022.114739] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Revised: 08/29/2022] [Accepted: 08/31/2022] [Indexed: 11/16/2022]
Abstract
The fusion of pyrazole scaffold with other skeletons creates a class of attractive molecules, demonstrating significant biological and chemical potentiality in the development of medicinal chemistry. Over the past few decades, numerous biologically active molecules featuring fused pyrazole moieties have been excavated and synthesized, some of which represented by sildenafil have been marketed as drugs, and the biological importance together with chemical synthesis strategies of fused pyrazole compounds, including structural modification based on lead compounds, have been steadily progressing. In this review, we focused our attention on the biological importance of fused pyrazoles and highlighted recent progress in the synthesis of this framework over the past 10 years. What' s more, the limitations, challenges, and future prospects were proposed, wishing to provide references for the development of pyrazole fused frameworks in the field of medicinal chemistry. Contents.
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Affiliation(s)
- Mei-Mei Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Hui Huang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Yiru Pu
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Wanrong Tian
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Yun Deng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Jun Lu
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China; Institute for Advancing Translational Medicine in Bone & Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, 999077, China.
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2
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Sever B, Ciftci H, DeMirci H, Sever H, Ocak F, Yulug B, Tateishi H, Tateishi T, Otsuka M, Fujita M, Başak AN. Comprehensive Research on Past and Future Therapeutic Strategies Devoted to Treatment of Amyotrophic Lateral Sclerosis. Int J Mol Sci 2022; 23:ijms23052400. [PMID: 35269543 PMCID: PMC8910198 DOI: 10.3390/ijms23052400] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 02/08/2022] [Accepted: 02/08/2022] [Indexed: 02/01/2023] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a rapidly debilitating fatal neurodegenerative disorder, causing muscle atrophy and weakness, which leads to paralysis and eventual death. ALS has a multifaceted nature affected by many pathological mechanisms, including oxidative stress (also via protein aggregation), mitochondrial dysfunction, glutamate-induced excitotoxicity, apoptosis, neuroinflammation, axonal degeneration, skeletal muscle deterioration and viruses. This complexity is a major obstacle in defeating ALS. At present, riluzole and edaravone are the only drugs that have passed clinical trials for the treatment of ALS, notwithstanding that they showed modest benefits in a limited population of ALS. A dextromethorphan hydrobromide and quinidine sulfate combination was also approved to treat pseudobulbar affect (PBA) in the course of ALS. Globally, there is a struggle to prevent or alleviate the symptoms of this neurodegenerative disease, including implementation of antisense oligonucleotides (ASOs), induced pluripotent stem cells (iPSCs), CRISPR-9/Cas technique, non-invasive brain stimulation (NIBS) or ALS-on-a-chip technology. Additionally, researchers have synthesized and screened new compounds to be effective in ALS beyond the drug repurposing strategy. Despite all these efforts, ALS treatment is largely limited to palliative care, and there is a strong need for new therapeutics to be developed. This review focuses on and discusses which therapeutic strategies have been followed so far and what can be done in the future for the treatment of ALS.
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Affiliation(s)
- Belgin Sever
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Anadolu University, Eskisehir 26470, Turkey;
- Medicinal and Biological Chemistry Science Farm Joint Research Laboratory, Faculty of Life Sciences, Kumamoto University, Kumamoto 862-0973, Japan; (H.C.); (H.T.); (M.O.)
| | - Halilibrahim Ciftci
- Medicinal and Biological Chemistry Science Farm Joint Research Laboratory, Faculty of Life Sciences, Kumamoto University, Kumamoto 862-0973, Japan; (H.C.); (H.T.); (M.O.)
- Department of Drug Discovery, Science Farm Ltd., Kumamoto 862-0976, Japan
- Department of Molecular Biology and Genetics, Koc University, Istanbul 34450, Turkey;
| | - Hasan DeMirci
- Department of Molecular Biology and Genetics, Koc University, Istanbul 34450, Turkey;
| | - Hilal Sever
- Ministry of Health, Istanbul Training and Research Hospital, Physical Medicine and Rehabilitation Clinic, Istanbul 34098, Turkey;
| | - Firdevs Ocak
- Faculty of Medicine, Kocaeli University, Kocaeli 41001, Turkey;
| | - Burak Yulug
- Department of Neurology and Neuroscience, Faculty of Medicine, Alaaddin Keykubat University, Alanya 07425, Turkey;
| | - Hiroshi Tateishi
- Medicinal and Biological Chemistry Science Farm Joint Research Laboratory, Faculty of Life Sciences, Kumamoto University, Kumamoto 862-0973, Japan; (H.C.); (H.T.); (M.O.)
| | - Takahisa Tateishi
- Division of Respirology, Neurology and Rheumatology, Department of Medicine, Kurume University School of Medicine, Fukuoka 830-0011, Japan;
| | - Masami Otsuka
- Medicinal and Biological Chemistry Science Farm Joint Research Laboratory, Faculty of Life Sciences, Kumamoto University, Kumamoto 862-0973, Japan; (H.C.); (H.T.); (M.O.)
- Department of Drug Discovery, Science Farm Ltd., Kumamoto 862-0976, Japan
| | - Mikako Fujita
- Medicinal and Biological Chemistry Science Farm Joint Research Laboratory, Faculty of Life Sciences, Kumamoto University, Kumamoto 862-0973, Japan; (H.C.); (H.T.); (M.O.)
- Correspondence: (M.F.); (A.N.B.); Tel.: +81-96-371-4622 (M.F.); +90-850-250-8250 (A.N.B.)
| | - Ayşe Nazlı Başak
- Suna and İnan Kıraç Foundation, Neurodegeneration Research Laboratory (KUTTAM-NDAL), Koc University, Istanbul 34450, Turkey
- Correspondence: (M.F.); (A.N.B.); Tel.: +81-96-371-4622 (M.F.); +90-850-250-8250 (A.N.B.)
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3
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Ahmed DM, Chen JM, Sanders DAR. Pyrazole and Triazole Derivatives as Mycobacterium tuberculosis UDP-Galactopyranose Inhibitors. Pharmaceuticals (Basel) 2022; 15:ph15020197. [PMID: 35215309 PMCID: PMC8874540 DOI: 10.3390/ph15020197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 02/01/2022] [Accepted: 02/02/2022] [Indexed: 11/30/2022] Open
Abstract
UDP-galactopyranose mutase (UGM) is an essential enzyme involved in the bacterial cell wall synthesis, and is not present in mammalian cells. Thus, UGM from Mycobacterium tuberculosis (Mtb) represents a novel and attractive drug target for developing antituberculosis agents. A pyrazole-based compound, MS208, was previously identified as a mixed inhibitor of MtbUGM which targets an allosteric site. To understand more about the structure activity relationship around the MS208 scaffold as a MtbUGM inhibitor, thirteen pyrazoles and triazole analogues were synthesized and tested against both MtbUGM and Mycobacterium tuberculosis in vitro. While the introduced structural modifications to MS208 did not improve the antituberculosis activity, most of the compounds showed MtbUGM inhibitory activity. Interestingly, the pyrazole derivative DA10 showed a competitive model for MtbUGM inhibition with improved Ki value of 51 ± 4 µM. However, the same compound did not inhibit the growth of Mycobacterium tuberculosis.
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Affiliation(s)
- Dalia M. Ahmed
- Department of Chemistry, University of Saskatchewan, 110 Science Place, Saskatoon, SK S7N 5C9, Canada;
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Ain Shams University, Cairo 11566, Egypt
| | - Jeffrey M. Chen
- Vaccine and Infectious Disease Organization, Saskatoon, SK S7N 5E3, Canada;
- Department of Veterinary Microbiology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK S7N 5B4, Canada
- Vaccinology and Immunotherapeutics Program, School of Public Health, University of Saskatchewan, Saskatoon, SK S7N 2Z4, Canada
| | - David A. R. Sanders
- Department of Chemistry, University of Saskatchewan, 110 Science Place, Saskatoon, SK S7N 5C9, Canada;
- Correspondence:
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4
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Shang J, Li Y, Yang N, Xiong L, Wang B. Synthesis and evaluation of novel 1-(((6-substitutedbenzo[ d]thiazol-2-yl)amino)(heteroaryl)methyl)naphthalen-2-ol as pesticidal agents. J Enzyme Inhib Med Chem 2022; 37:641-651. [PMID: 35086409 PMCID: PMC8797731 DOI: 10.1080/14756366.2022.2032687] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
To discover new agrochemicals with prominent pesticidal properties, a series of novel β-naphthol derivatives containing benzothiazolylamino and various heteroaryl groups (8a-q) were efficiently synthesised via Betti reaction. The bioassay results showed that most of the synthesised compounds exhibited favourable insecticidal potentials, particularly towards oriental armyworm (50–100% at 200 mg·L−1) and diamondback moth (50–95% at 10 mg·L−1). Compounds 8 b, 8f, 8 g, 8j, 8k, 8n, and 8o possessed LC50 values of 0.0988–5.8864 mg·L−1 against diamondback moth. Compounds 8i, 8 l, and 8 m also displayed lethality rates of 30–90% against spider mite at the concentration of 100 mg·L−1. Overall, some compounds could be considered as new insecticidal/acaricidal leading structures for further investigation. The calcium imaging experiments revealed that 8 h, 8i, and viii could activate the release of calcium ions in insect (M. separata) central neurons at a higher concentration (50 mg·L−1). The SAR analysis provided valuable information for further structural modifications.
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Affiliation(s)
- Junfeng Shang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, China
| | - Yuxin Li
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, China.,Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine, Hunan Normal University, Changsha, China
| | - Na Yang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, China
| | - Lixia Xiong
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, China
| | - Baolei Wang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, China
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5
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Sharma S, Singh V. Exploration of pyrazole based
aldo‐x
bifunctional building blocks for the synthesis of pyrazole annulated molecular architectures. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.4097] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Shubham Sharma
- Department of Chemistry Dr B R Ambedkar National Institute of Technology (NIT) Jalandhar India
| | - Virender Singh
- Department of Chemistry Dr B R Ambedkar National Institute of Technology (NIT) Jalandhar India
- Department of Chemistry Central University of Punjab Bathinda India
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6
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Kim S, Indu Viswanath AN, Park JH, Lee HE, Park AY, Choi JW, Kim HJ, Londhe AM, Jang BK, Lee J, Hwang H, Lim SM, Pae AN, Park KD. Nrf2 activator via interference of Nrf2-Keap1 interaction has antioxidant and anti-inflammatory properties in Parkinson's disease animal model. Neuropharmacology 2020; 167:107989. [PMID: 32032607 DOI: 10.1016/j.neuropharm.2020.107989] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 01/07/2020] [Accepted: 02/03/2020] [Indexed: 12/30/2022]
Abstract
Parkinson's disease (PD) is a neurodegenerative disorder characterized by abnormal movement, including slowed movements, shuffling gait, lack of balance, and tremor. Oxidative stress has been shown to play a decisive role in dopaminergic neuronal cell death in PD. The nuclear factor E2-related factor 2 (Nrf2)-Kelch-like ECH-associated protein 1 (Keap1) signaling pathway provides the main defense system against oxidative stress by inducing the expression of antioxidant enzyme genes. Direct interference in the Keap1-Nrf2 protein-protein interaction (PPI) has emerged as an effective strategy for Nrf2 activation. Therefore, we searched for novel Nrf2 activators that can disrupt Nrf2-Keap1 interaction by using a virtual screening approach and identified a potent Nrf2 activator, KKPA4026. KKPA4026 was confirmed to induce the expression of the Nrf2-dependent antioxidant enzymes heme oxygenase-1, glutamate-cysteine ligase catalytic subunit, glutamate-cysteine ligase regulatory subunit, and NAD(P)H:quinone oxidoreductase 1 in BV-2 cells. Furthermore, KKPA4026 showed anti-inflammatory effects in an Nrf2-dependent manner. In a 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced mouse model of PD, KKPA4026 effectively attenuated PD-associated behavioral deficits and protected dopaminergic neurons. In summary, we identified KKPA4026 as a novel Nrf2 activator and suggested that Nrf2 activation through interference with the Nrf2-Keap1 interaction may be effective for PD treatment.
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Affiliation(s)
- Siwon Kim
- Convergence Research Center for Diagnosis, Treatment and Care System of Dementia, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea; Division of Bio-Medical Science & Technology, KIST School, Korea University of Science and Technology, Seoul, 02792, Republic of Korea
| | - Ambily Nath Indu Viswanath
- Convergence Research Center for Diagnosis, Treatment and Care System of Dementia, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea; Division of Bio-Medical Science & Technology, KIST School, Korea University of Science and Technology, Seoul, 02792, Republic of Korea
| | - Jong-Hyun Park
- Convergence Research Center for Diagnosis, Treatment and Care System of Dementia, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
| | - Ha Eun Lee
- Convergence Research Center for Diagnosis, Treatment and Care System of Dementia, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea; Division of Bio-Medical Science & Technology, KIST School, Korea University of Science and Technology, Seoul, 02792, Republic of Korea
| | - A Yeong Park
- Convergence Research Center for Diagnosis, Treatment and Care System of Dementia, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
| | - Ji Won Choi
- Convergence Research Center for Diagnosis, Treatment and Care System of Dementia, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
| | - Hyeon Jeong Kim
- Convergence Research Center for Diagnosis, Treatment and Care System of Dementia, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea; Department of Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
| | - Ashwini M Londhe
- Convergence Research Center for Diagnosis, Treatment and Care System of Dementia, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea; Division of Bio-Medical Science & Technology, KIST School, Korea University of Science and Technology, Seoul, 02792, Republic of Korea
| | - Bo Ko Jang
- Convergence Research Center for Diagnosis, Treatment and Care System of Dementia, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
| | - Jaeick Lee
- Doping Control Center, KIST, Seoul, 02792, Republic of Korea
| | - Hayoung Hwang
- New Drug Development Center, Daegu-Gyeongbuk Medical Innovation Foundation, Daegu, 41061, Republic of Korea
| | - Sang Min Lim
- Convergence Research Center for Diagnosis, Treatment and Care System of Dementia, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea; Division of Bio-Medical Science & Technology, KIST School, Korea University of Science and Technology, Seoul, 02792, Republic of Korea
| | - Ae Nim Pae
- Convergence Research Center for Diagnosis, Treatment and Care System of Dementia, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea; Division of Bio-Medical Science & Technology, KIST School, Korea University of Science and Technology, Seoul, 02792, Republic of Korea; KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul, 02447, Republic of Korea.
| | - Ki Duk Park
- Convergence Research Center for Diagnosis, Treatment and Care System of Dementia, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea; Division of Bio-Medical Science & Technology, KIST School, Korea University of Science and Technology, Seoul, 02792, Republic of Korea; KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul, 02447, Republic of Korea.
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7
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Hafez Taghva P, Kabirifard H. Ring-chain transformation of 4-aroyl-5-phenylamino-2,3-dihydrothiophene-2,3-diones: Facile and efficient synthesis of novel pyrrolo[2,3-c]pyrazol-3(2H)-ones and 1,2-dihydro-5H,6H-pyridazine-5,6-diones. J Sulphur Chem 2019. [DOI: 10.1080/17415993.2019.1702664] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Pardis Hafez Taghva
- Department of Chemistry, North Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Hassan Kabirifard
- Department of Chemistry, North Tehran Branch, Islamic Azad University, Tehran, Iran
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8
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Konwar M, Phukan P, Chaliha AK, Buragohain AK, Damarla K, Gogoi D, Kumar A, Sarma D. An Unexplored Lewis Acidic Catalytic System for Synthesis of Pyrazole and its Biaryls Derivatives with Antimicrobial Activities through Cycloaddition‐Iodination‐Suzuki Reaction. ChemistrySelect 2019. [DOI: 10.1002/slct.201902266] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Manashjyoti Konwar
- Department of ChemistryDibrugarh University Dibrugarh- 786004, Assam India
| | - Parmita Phukan
- Department of ChemistryDibrugarh University Dibrugarh- 786004, Assam India
| | - Amrita K. Chaliha
- Centre for Biotechnology and BioinformaticsDibrugarh University Dibrugarh- 786004, Assam India
| | - Alak K. Buragohain
- Centre for Biotechnology and BioinformaticsDibrugarh University Dibrugarh- 786004, Assam India
| | - Krishnaiah Damarla
- Academy of Scientific and Innovative Research (AcSIR)Central Salt and Marine Chemicals Research Institute G. B. Marg Bhavnagar 364002 Gujarat India
| | - Dipshikha Gogoi
- DBT-Bioinformatics Infrastructure Facility, Centre for Biotechnology and BioinformaticsDibrugarh University Dibrugarh- 786004, Assam India
| | - Arvind Kumar
- Academy of Scientific and Innovative Research (AcSIR)Central Salt and Marine Chemicals Research Institute G. B. Marg Bhavnagar 364002 Gujarat India
| | - Diganta Sarma
- Department of ChemistryDibrugarh University Dibrugarh- 786004, Assam India
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9
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Kiyokawa K, Ito Y, Kakehi R, Ogawa T, Goto Y, Yoshimatsu M. Propargyl Hydrazides as Useful Intermediates Leading to Pyrazoles via Reaction with Certain Electrophiles. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600708] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Kosuke Kiyokawa
- Department of Chemistry; Faculty of Education; Gifu University; Yanagido 1-1 501-1193 Gifu Japan
| | - Yukiteru Ito
- Department of Chemistry; Faculty of Education; Gifu University; Yanagido 1-1 501-1193 Gifu Japan
| | - Ryoma Kakehi
- Department of Chemistry; Faculty of Education; Gifu University; Yanagido 1-1 501-1193 Gifu Japan
| | - Takahiro Ogawa
- Department of Chemistry; Faculty of Education; Gifu University; Yanagido 1-1 501-1193 Gifu Japan
| | - Yusuke Goto
- Department of Chemistry; Faculty of Education; Gifu University; Yanagido 1-1 501-1193 Gifu Japan
| | - Mitsuhiro Yoshimatsu
- Department of Chemistry; Faculty of Education; Gifu University; Yanagido 1-1 501-1193 Gifu Japan
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10
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Wang BL, Zhang LY, Zhan YZ, Zhang Y, Zhang X, Wang LZ, Li ZM. Synthesis and biological activities of novel 1,2,4-triazole thiones and bis(1,2,4-triazole thiones) containing phenylpyrazole and piperazine moieties. J Fluor Chem 2016. [DOI: 10.1016/j.jfluchem.2016.02.004] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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11
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Katla R, Chowrasia R, Manjari PS, da Silva CDG, dos Santos BF, Domingues NLC. [Ce(l-Pro)2]2 (Oxa) as a heterogeneous recyclable catalyst: synthesis of pyrazoles under mild reaction conditions. NEW J CHEM 2016. [DOI: 10.1039/c6nj01723a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A highly efficient method for the synthesis of pyrazoles mediated by [Ce(l-Pro)2]2 (Oxa) as a heterogeneous catalyst.
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Affiliation(s)
- Ramesh Katla
- Organic Catalysis and Biocatalysis Laboratory OCBL/ FACET
- Federal University of Grande Dourados—UFGD
- Dourados
- Brazil
| | | | | | - Caren D. G. da Silva
- Organic Catalysis and Biocatalysis Laboratory OCBL/ FACET
- Federal University of Grande Dourados—UFGD
- Dourados
- Brazil
| | - Beatriz F. dos Santos
- Organic Catalysis and Biocatalysis Laboratory OCBL/ FACET
- Federal University of Grande Dourados—UFGD
- Dourados
- Brazil
| | - Nelson L. C. Domingues
- Organic Catalysis and Biocatalysis Laboratory OCBL/ FACET
- Federal University of Grande Dourados—UFGD
- Dourados
- Brazil
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12
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Batchu H, Bhattacharyya S, Kant R, Batra S. Palladium-Catalyzed Chelation-Assisted Regioselective Oxidative Dehydrogenative Homocoupling/Ortho-Hydroxylation in N-Phenylpyrazoles. J Org Chem 2015; 80:7360-74. [DOI: 10.1021/acs.joc.5b00733] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
| | | | | | - Sanjay Batra
- Academy of Scientific and Innovative Research, New Delhi, 110025, India
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13
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Llona-Minguez S, Desroses M, Ghassemian A, Jacques SA, Eriksson L, Isacksson R, Koolmeister T, Stenmark P, Scobie M, Helleday T. Vinylic MIDA Boronates: New Building Blocks for the Synthesis of Aza-Heterocycles. Chemistry 2015; 21:7394-8. [PMID: 25809883 DOI: 10.1002/chem.201406549] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Indexed: 01/23/2023]
Abstract
A two-step synthesis of structurally diverse pyrrole-containing bicyclic systems is reported. ortho-Nitro-haloarenes coupled with vinylic N-methyliminodiacetic acid (MIDA) boronates generate ortho-vinyl-nitroarenes, which undergo a "metal-free" nitrene insertion, resulting in a new pyrrole ring. This novel synthetic approach has a wide substrate tolerance and it is applicable in the preparation of more complex "drug-like" molecules. Interestingly, an ortho-nitro-allylarene derivative furnished a cyclic β-aminophosphonate motif.
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Affiliation(s)
- Sabin Llona-Minguez
- Science for Life Laboratory, Division of Translational, Medicine & Chemical Biology, Department of Medical Biochemistry & Biophysics, Karolinska Institutet, Stockholm, 171 21 (Sweden) http://www.helleday.org.
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14
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Batchu H, Batra S. Synthesis of dihydropyrazolo[4,3-c]azepines via iodine-mediated intramolecular hydrative cyclization. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.09.073] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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15
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Vijay Kumar S, Saraiah B, Parameshwarappa G, Ila H, Verma GK. Synthesis of N-Functionalized/NH-Multisubstituted Indoles, Thienopyrroles, Pyrroloindoles, and Pyrazolopyrroles via Sequential One-Pot Base-Mediated and Copper-Catalyzed Inter- and Intramolecular Amination of 2-[2-Bromo(het)aryl]-3-(het)aryl-3-(methylthio)acrylonitriles. J Org Chem 2014; 79:7961-78. [DOI: 10.1021/jo501114a] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- S. Vijay Kumar
- New
Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - B. Saraiah
- New
Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - G. Parameshwarappa
- New
Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - H. Ila
- New
Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - Girijesh K. Verma
- Department
of Chemistry, Banaras Hindu University, Varanasi 221005, India
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16
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Vijay K, Nandi C, Samant SD. Synthesis of a dihydroquinoline based merocyanine as a ‘naked eye’ and ‘fluorogenic’ sensor for hydrazine hydrate in aqueous medium and hydrazine gas. RSC Adv 2014. [DOI: 10.1039/c4ra02426e] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
1,2,2,4-Tetramethyldihydroquinoline (TMDQ) is formylated at the 6-position and the resulting quinoline aldehyde is condensed with 3-methyl-1-phenyl-1H-pyrazol-5(4H)-one to obtain a merocyanine 6-pyrazolinyl TMDQ.
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Affiliation(s)
- K. Vijay
- Department of Chemistry
- Institute of Chemical Technology
- Mumbai-400019, India
| | - C. Nandi
- R & D
- NOCIL Limited
- Navi Mumbai-400705, India
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17
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Bhowmik S, Pandey G, Batra S. Substituent-Guided Switch between CH Activation and Decarboxylative Cross-Coupling during Palladium/Copper-Catalyzed Cascade Reactions of 2-Aminobenzoates with 2-Haloarylaldehydes. Chemistry 2013; 19:10487-91. [DOI: 10.1002/chem.201301705] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2013] [Indexed: 11/08/2022]
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18
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Biswas S, Batra S. Retracted: Copper-Catalyzed Synthesis of Substituted Isoindolo[2,1-a]quinoxalines and Isoindolo[2,1-a]quinoxalin-6(5H)-ones. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300466] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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19
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Synthesis of pyrazole-fused polycyclic systems via intramolecular 1,3-dipolar cycloaddition reactions. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.03.099] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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20
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