1
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Singh G, Marupalli SS, Arockiaraj M, Rajeshkumar V. I 2-Cs 2CO 3 Mediated Intramolecular C2-Amination and Oxidative Rearrangement Cascade of C-3 Phenylthio Indoles: A Route to Synthesize Thiosulfonate-Embedded 2-Iminoindolin-3-ones. J Org Chem 2024; 89:5861-5870. [PMID: 38552213 DOI: 10.1021/acs.joc.4c00056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
An efficient, transition-metal-free protocol employing I2/Cs2CO3 for the synthesis of thiosulfonate containing 2-iminoindolin-3-ones motifs has been developed from C-3 phenylthio indoles. The reaction proceeded through intramolecular cyclization involving C-N bond formation, leading to the formation of indole-fused benzothiazines as a key intermediate. Remarkably, Cs2CO3 played a crucial role in the reaction as an oxygen source, enabling oxidative rearrangement with [1,4]-sulfonyl migration to furnish the final products with the formation of multiple functional groups such as C═O, C═N, and S-SO2.
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Affiliation(s)
- Gargi Singh
- Organic Synthesis & Catalysis Lab, Department of Chemistry, National Institute of Technology Warangal, Hanumakonda - 506004, Telangana, India
| | - Sasi Sree Marupalli
- Organic Synthesis & Catalysis Lab, Department of Chemistry, National Institute of Technology Warangal, Hanumakonda - 506004, Telangana, India
| | - Mariyaraj Arockiaraj
- Organic Synthesis & Catalysis Lab, Department of Chemistry, National Institute of Technology Warangal, Hanumakonda - 506004, Telangana, India
| | - Venkatachalam Rajeshkumar
- Organic Synthesis & Catalysis Lab, Department of Chemistry, National Institute of Technology Warangal, Hanumakonda - 506004, Telangana, India
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2
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Wu Z, Zhang C, Huang Y, Tao N, Wang T, Cai X, Wang Z, Li X. Tryptanthrin Derivative B1 Binds Viral Genome-Linked Protein (VPg) of Potato Virus Y. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:5699-5709. [PMID: 38462724 DOI: 10.1021/acs.jafc.4c01306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
Potato virus Y (PVY) is a plant virus that is known to be responsible for substantial economic losses in agriculture. Within the PVY genome, viral genome-linked protein (VPg) plays a pivotal role in the viral translation process. In this study, VPg was used as a potential target for analyzing the antiviral activity of tryptanthrin derivatives. In vitro, the dissociation constants of B1 with PVY VPg were 0.69 μmol/L (measured by microscale thermophoresis) and 4.01 μmol/L (measured via isothermal titration calorimetry). B1 also strongly bound to VPg proteins from three other Potyviruses. Moreover, in vivo experiments demonstrated that B1 effectively suppressed the expression of the PVY gene. Molecular docking experiments revealed that B1 formed a hydrogen bond with N121 and that no specific binding occurred between B1 and the PVY VPgN121A mutant. Therefore, N121 is a key amino acid residue in PVY VPg involved in B1 binding. These results highlight the potential of PVY VPg as a potential target for the development of antiviral agents.
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Affiliation(s)
- Zilin Wu
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Chun Zhang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Yuanqin Huang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Na Tao
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Tao Wang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Xiaobo Cai
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Zhenchao Wang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
- College of Pharmacy, Guizhou University, Guiyang 550025, China
| | - Xiangyang Li
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
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3
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Thorat VH, Hsieh JC. Nickel-Catalyzed Intramolecular Dual Annulation Reaction of Aryl Nitrile-Containing 1,2,3-Benzotriazin-4(3 H)-ones: A Pathway To Synthesize Luotonin A and Related Polycyclic Pyrroloquinazolinones. Org Lett 2023; 25:7990-7994. [PMID: 37906681 DOI: 10.1021/acs.orglett.3c03142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
Herein, we report a nickel-catalyzed intramolecular denitrogenative dual annulation reaction of aryl nitrile-containing 1,2,3-benzotriazine-4(3H)-ones to synthesize polycyclic pyrroloquinazolinones with a tolerance of a wide diversity of substituents. This catalytic reaction is the first denitrogenative transannulation of 1,2,3-benzotriazine-4(3H)-one with nitrile, which can be applied as the critical step to synthesize luotonin A with a high step economy.
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Affiliation(s)
- Vijaykumar H Thorat
- Department of Chemistry, Tamkang University, New Taipei City 251301, Taiwan, Republic of China
| | - Jen-Chieh Hsieh
- Department of Chemistry, Tamkang University, New Taipei City 251301, Taiwan, Republic of China
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4
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Schepetkin IA, Karpenko OS, Kovrizhina AR, Kirpotina LN, Khlebnikov AI, Chekal SI, Radudik AV, Shybinska MO, Quinn MT. Novel Tryptanthrin Derivatives with Selectivity as c-Jun N-Terminal Kinase (JNK) 3 Inhibitors. Molecules 2023; 28:4806. [PMID: 37375361 DOI: 10.3390/molecules28124806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 06/09/2023] [Accepted: 06/12/2023] [Indexed: 06/29/2023] Open
Abstract
The c-Jun N-terminal kinase (JNK) family includes three proteins (JNK1-3) that regulate many physiological processes, including cell proliferation and differentiation, cell survival, and inflammation. Because of emerging data suggesting that JNK3 may play an important role in neurodegenerative diseases, such as Alzheimer's disease (AD) and Parkinson's disease, as well as cancer pathogenesis, we sought to identify JNK inhibitors with increased selectivity for JNK3. A panel of 26 novel tryptanthrin-6-oxime analogs was synthesized and evaluated for JNK1-3 binding (Kd) and inhibition of cellular inflammatory responses. Compounds 4d (8-methoxyindolo[2,1-b]quinazolin-6,12-dione oxime) and 4e (8-phenylindolo[2,1-b]quinazolin-6,12-dione oxime) had high selectivity for JNK3 versus JNK1 and JNK2 and inhibited lipopolysaccharide (LPS)-induced nuclear factor-κB/activating protein 1 (NF-κB/AP-1) transcriptional activity in THP-1Blue cells and interleukin-6 (IL-6) production by MonoMac-6 monocytic cells in the low micromolar range. Likewise, compounds 4d, 4e, and pan-JNK inhibitor 4h (9-methylindolo[2,1-b]quinazolin-6,12-dione oxime) decreased LPS-induced c-Jun phosphorylation in MonoMac-6 cells, directly confirming JNK inhibition. Molecular modeling suggested modes of binding interaction of these compounds in the JNK3 catalytic site that were in agreement with the experimental data on JNK3 binding. Our results demonstrate the potential for developing anti-inflammatory drugs based on these nitrogen-containing heterocyclic systems with selectivity for JNK3.
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Affiliation(s)
- Igor A Schepetkin
- Department of Microbiology and Cell Biology, Montana State University, Bozeman, MT 59717, USA
| | - Oleksander S Karpenko
- O.V. Bogatsky Physico-Chemical Institute, National Academy of Sciences of Ukraine, 65080 Odesa, Ukraine
| | | | - Liliya N Kirpotina
- Department of Microbiology and Cell Biology, Montana State University, Bozeman, MT 59717, USA
| | | | - Stepan I Chekal
- Department of Organic Chemistry, Faculty of Chemistry and Pharmacy, Odesa I.I. Mechnikov National University, 65082 Odesa, Ukraine
| | - Alevtyna V Radudik
- O.V. Bogatsky Physico-Chemical Institute, National Academy of Sciences of Ukraine, 65080 Odesa, Ukraine
- Department of Organic Chemistry, Faculty of Chemistry and Pharmacy, Odesa I.I. Mechnikov National University, 65082 Odesa, Ukraine
| | - Maryna O Shybinska
- O.V. Bogatsky Physico-Chemical Institute, National Academy of Sciences of Ukraine, 65080 Odesa, Ukraine
| | - Mark T Quinn
- Department of Microbiology and Cell Biology, Montana State University, Bozeman, MT 59717, USA
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5
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Kotajima M, Choi JH, Kondo M, D’Alessandro-Gabazza CN, Toda M, Yasuma T, Gabazza EC, Miwa Y, Shoda C, Lee D, Nakai A, Kurihara T, Wu J, Hirai H, Kawagishi H. Axl, Immune Checkpoint Molecules and HIF Inhibitors from the Culture Broth of Lepista luscina. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27248925. [PMID: 36558053 PMCID: PMC9781456 DOI: 10.3390/molecules27248925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 12/09/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022]
Abstract
Two compounds 1 and 2 were isolated from the culture broth of Lepista luscina. This is the first time that compound 1 was isolated from a natural source. The structure of compound 1 was identified via 1D and 2D NMR and HRESIMS data. Compounds 1 and 2 along with 8-nitrotryptanthrin (4) were evaluated for their biological activities using the A549 lung cancer cell line. As a result, 1 and 2 inhibited the expression of Axl and immune checkpoint molecules. In addition, compounds 1, 2 and 4 were tested for HIF inhibitory activity. Compound 2 demonstrated statistically significant HIF inhibitory effects on NIH3T3 cells and 1 and 2 against ARPE19 cells.
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Affiliation(s)
- Mihaya Kotajima
- Graduate School of Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
| | - Jae-Hoon Choi
- Graduate School of Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
- Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
- Faculty of Agriculture, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
- Research Institute for Mushroom Science, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
| | - Mitsuru Kondo
- Graduate School of Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
- Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
| | | | - Masaaki Toda
- Department of Immunology, Graduate School of Medicine, Mie University, Edobashi 2-174, Tsu 524-8507, Japan
| | - Taro Yasuma
- Department of Immunology, Graduate School of Medicine, Mie University, Edobashi 2-174, Tsu 524-8507, Japan
| | - Esteban C. Gabazza
- Department of Immunology, Graduate School of Medicine, Mie University, Edobashi 2-174, Tsu 524-8507, Japan
| | - Yukihiro Miwa
- Department of Ophthalmology, Keio University School of Medicine, 35 Shina-nomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Chiho Shoda
- Department of Ophthalmology, Keio University School of Medicine, 35 Shina-nomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Deokho Lee
- Department of Ophthalmology, Keio University School of Medicine, 35 Shina-nomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Ayaka Nakai
- Department of Ophthalmology, Keio University School of Medicine, 35 Shina-nomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Toshihide Kurihara
- Department of Ophthalmology, Keio University School of Medicine, 35 Shina-nomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Jing Wu
- Faculty of Agriculture, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
- Research Institute for Mushroom Science, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
| | - Hirofumi Hirai
- Graduate School of Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
- Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
- Faculty of Agriculture, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
- Research Institute for Mushroom Science, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
| | - Hirokazu Kawagishi
- Faculty of Agriculture, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
- Research Institute for Mushroom Science, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
- Correspondence:
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6
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Ethyl 5-Oxo-5-(((12-oxoindolo[2,1-b]quinazolin-6(12H)-ylidene)amino)oxy)pentanoate. MOLBANK 2022. [DOI: 10.3390/m1451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Indolo[2,1-b]quinazolin-6,12-dione (tryptanthrin) derivatives present important types of nitrogen-containing heterocyclic compounds which are useful intermediate products in organic synthesis and have potential pharmaceutical applications. The new ethyl 5-oxo-5-(((12-oxoindolo[2,1-b]quinazolin-6(12H)-ylidene)amino)oxy)pentanoate (Compound 2) was synthesized. Compound 2 is the first example of a tryptanthrin derivative containing a dicarboxylic acid residue in the side chain. The Z,E-isomerism of Compound 2 was investigated by DFT calculations. Bioavailability was evaluated in silico using ADME predictions. According to the ADME results, Compound 2 is potentially highly bioavailable and has the prospective to be used as the main component for the development of anti-inflammatory drugs.
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7
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Huang LQ, Dong CL, He YH, Guan Z. Visible Light‐Induced Radical‐Radical Coupling: One‐Pot Synthesis of 6‐benzyl‐6‐hydroxyindolo[2,1‐b]quinazolin‐12(6H)‐ones from Isatins and Potassium Benzyl Trifluoroborates. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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8
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Synthesis and antitumor activity screening of spiro tryptanthrin-based heterocyclic compounds. Med Chem Res 2022. [DOI: 10.1007/s00044-022-02856-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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9
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Sadeghian Z, Bayat M, Safari F. Synthesis and in vitro evaluation of antitumor activity of spiro[indolo[2,1-b]quinazoline-pyrano[2,3-d]pyrimidine] and spiro[indolo[2,1-b]quinazoline-pyrido[2,3-d]pyrimidine] derivatives by using 2D and 3D cell culture models. Mol Divers 2022; 26:3173-3184. [PMID: 35044579 DOI: 10.1007/s11030-022-10378-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 01/03/2022] [Indexed: 10/19/2022]
Abstract
Cancer as one of the biggest human health problems remains unsolved. The identification of novel platforms with the highest efficacy and low toxicity is a big challenge among interested researchers. In this regard, we are interested to synthesis and evaluate antitumor activity of spiro[indolo[2,1-b]quinazoline-pyrano[2,3-d]pyrimidine] and spiro[indolo[2,1-b]quinazoline-pyrido[2,3-d]pyrimidine] derivatives. The spiro heterocycles were synthesized via four-component reaction of isatoic anhydride, isatins, malononitrile, and some CH-acids including barbituric acid/thiobarbituric acid and 4(6)-aminouracil in CH2Cl2 under reflux condition. The significant features of this process are short reaction time, easy purification without chromatographic process, and high yields which make it attractive. Next, we employed 2D and 3D cell culture models to evaluate biological activity of our compounds. Our results showed that among our seven products (4a-g), the compounds 4a and 4e are the best with 50% growth inhibitory concentration (IC50) value lower than etoposide. Our results support this idea that the compounds 4a and 4e may be potential for drug designing in cancer therapy. However, more experiments will be required to find possible side effects of related compounds in vivo.
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Affiliation(s)
- Zahra Sadeghian
- Department of Chemistry, Faculty of Science, Imam Khomeini International University, Qazvin, Iran
| | - Mohammad Bayat
- Department of Chemistry, Faculty of Science, Imam Khomeini International University, Qazvin, Iran.
| | - Fatemeh Safari
- Department of Biology, Faculty of Science, University of Guilan, Rasht, Iran.
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10
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Cai C, Zou D. Recent Progress in Benzylic C(sp 3)—H Functionalization of Toluene and Its Derivatives. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202201027] [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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11
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Pinheiro D, Pineiro M, Seixas de Melo JS. Tryptanthrin derivatives as efficient singlet oxygen sensitizers. Photochem Photobiol Sci 2021; 21:645-658. [PMID: 34735707 DOI: 10.1007/s43630-021-00117-8] [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: 06/24/2021] [Accepted: 10/14/2021] [Indexed: 11/27/2022]
Abstract
Halogenated tryptanthrin and aminotryptanthrin were synthesized from indigo or isatin precursors. Dibromo- and tetrabromo-tryptanthrin were obtained from indigo dyes following green chemistry procedures, through microwave-assisted synthesis in mild oxidation conditions. Spectral and photophysical properties of the compounds, including quantitative determination of all the different deactivation pathways of S1 and T1, were obtained in different solvents and temperatures. The triplet state (T1) has a dominant role on the photophysical properties of these compounds, which is further enhanced by the halogens at the fused-phenyl rings. Substitution with an amino group, 2-aminotryptanthrin (TRYP-NH2), leads a dominance of the radiative decay channel. Moreover, with the sole exception of TRYP-NH2, S1 ~ ~ > T1 intersystem crossing constitutes the dominant route, with internal conversion playing a minor role in the deactivation of S1 in all the studied derivatives. In agreement with tryptanthrin, emission of the triplet state of tryptanthrin derivatives (with exception of TRYP-NH2), was observed together with an enhancement of the singlet oxygen sensitization quantum yield: from 70% in tryptanthrin to 92% in the iodine derivative. This strongly contrasts with indigo and its derivatives, where singlet oxygen sensitization is found inefficient.
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Affiliation(s)
- Daniela Pinheiro
- Department of Chemistry, CQC, University of Coimbra, Rua Larga, 3004-535, Coimbra, Portugal
| | - Marta Pineiro
- Department of Chemistry, CQC, University of Coimbra, Rua Larga, 3004-535, Coimbra, Portugal
| | - J Sérgio Seixas de Melo
- Department of Chemistry, CQC, University of Coimbra, Rua Larga, 3004-535, Coimbra, Portugal.
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12
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Szewczyk-Golec K, Pawłowska M, Wesołowski R, Wróblewski M, Mila-Kierzenkowska C. Oxidative Stress as a Possible Target in the Treatment of Toxoplasmosis: Perspectives and Ambiguities. Int J Mol Sci 2021; 22:ijms22115705. [PMID: 34071892 PMCID: PMC8198901 DOI: 10.3390/ijms22115705] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/21/2021] [Accepted: 05/25/2021] [Indexed: 12/16/2022] Open
Abstract
Toxoplasma gondii is an apicomplexan parasite causing toxoplasmosis, a common disease, which is most typically asymptomatic. However, toxoplasmosis can be severe and even fatal in immunocompromised patients and fetuses. Available treatment options are limited, so there is a strong impetus to develop novel therapeutics. This review focuses on the role of oxidative stress in the pathophysiology and treatment of T. gondii infection. Chemical compounds that modify redox status can reduce the parasite viability and thus be potential anti-Toxoplasma drugs. On the other hand, oxidative stress caused by the activation of the inflammatory response may have some deleterious consequences in host cells. In this respect, the potential use of natural antioxidants is worth considering, including melatonin and some vitamins, as possible novel anti-Toxoplasma therapeutics. Results of in vitro and animal studies are promising. However, supplementation with some antioxidants was found to promote the increase in parasitemia, and the disease was then characterized by a milder course. Undoubtedly, research in this area may have a significant impact on the future prospects of toxoplasmosis therapy.
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13
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Yao Z, Feng H, Xi H, Xi C, Liu W. CF 3SO 3H-enabled cascade ring-opening/dearomatization of indole derivatives to polycyclic heterocycles. Org Biomol Chem 2021; 19:4469-4473. [PMID: 33913995 DOI: 10.1039/d1ob00712b] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel dearomatization process to produce fused polycyclic indolines via a CF3SO3H-mediated cascade ring-opening of a β-lactam and hydroaminative cyclization is demonstrated. It provides a new strategy for the synthesis of important polycyclic indoline-2-amine derivatives in moderate to excellent yields, as well as with good functional group tolerance. Moreover, transformation of the product was performed to deliver the corresponding acid, alcohol and amide smoothly.
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Affiliation(s)
- Zhengdong Yao
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Huangdi Feng
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Hui Xi
- Key Laboratory of Tobacco Flavor Basic Research of CNTC, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, China
| | - Chuanjun Xi
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China.
| | - Weiping Liu
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China.
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14
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Zhang J, Xia W, Huda S, Ward JS, Rissanen K, Albrecht M. Synthesis of N‐Fused Indolines via Copper (II)‐Catalyzed Dearomatizing Cyclization of Indoles. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100290] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Jingyu Zhang
- Institut für Organische Chemie RWTH Aachen University Landoltweg 1 D-52074 Aachen Germany
| | - Wei Xia
- Institut für Organische Chemie RWTH Aachen University Landoltweg 1 D-52074 Aachen Germany
| | - Saskia Huda
- Institut für Organische Chemie RWTH Aachen University Landoltweg 1 D-52074 Aachen Germany
| | - Jas S. Ward
- University of Jyvaskyla Department of Chemistry Survontie 9 B FIN-40014 Jyväskylä Finland
| | - Kari Rissanen
- University of Jyvaskyla Department of Chemistry Survontie 9 B FIN-40014 Jyväskylä Finland
| | - Markus Albrecht
- Institut für Organische Chemie RWTH Aachen University Landoltweg 1 D-52074 Aachen Germany
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15
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Baruah B, Deb ML. Catalyst-free and additive-free reactions enabling C-C bond formation: a journey towards a sustainable future. Org Biomol Chem 2021; 19:1191-1229. [PMID: 33480947 DOI: 10.1039/d0ob02149k] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This review focuses on the catalyst- and additive-free C-C bond forming reactions reported mostly from the year 2005 to date. C-C bond forming reactions are highly important as large and complex organic molecules can be derived from simpler ones via these reactions. On the other hand, catalyst- and additive-free reactions are economical, environmentally friendly and less sensitive to air/moisture, allow easy separation of products and are operationally simple. Hence, a large number of research articles have been published in this area. Though a few reviews are available on the catalyst-free organic reactions, most of them were published a few years ago. The current review excludes catalysts as well as additives and is specific to only C-C bond formation. Besides many organic name reactions, catalyst/additive-free C-H functionalizations, coupling reactions and UV-visible-light-promoted reactions are also discussed. Undoubtedly, the contents of this review will motivate readers to do more novel work in this area which will accelerate the journey towards a sustainable future.
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Affiliation(s)
- Biswajita Baruah
- Department of Chemistry, Pandu College, Guwahati-12, Assam, India
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16
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Brandão P, Marques C, Pinto E, Pineiro M, Burke AJ. Petasis adducts of tryptanthrin – synthesis, biological activity evaluation and druglikeness assessment. NEW J CHEM 2021. [DOI: 10.1039/d1nj02079j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The first example of a tryptanthrin-based Petasis multicomponent reaction is reported, with one of the new derivatives showing moderate fungicidal activity.
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Affiliation(s)
- Pedro Brandão
- Department of Chemistry
- University of Coimbra
- CQC
- Coimbra
- Portugal
| | | | - Eugénia Pinto
- Laboratório de Microbiologia
- Departamento de Ciências Biológicas
- Faculdade de Farmácia
- Universidade do Porto
- 4050-313 Porto
| | - Marta Pineiro
- Department of Chemistry
- University of Coimbra
- CQC
- Coimbra
- Portugal
| | - Anthony J. Burke
- LAQV-REQUIMTE
- University of Évora
- Évora
- Portugal
- Department of Chemistry
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Li K, Grooms GM, Khan SM, Hernandez AG, Witola WH, Stec J. Novel acyl carbamates and acyl / diacyl ureas show in vitro efficacy against Toxoplasma gondii and Cryptosporidium parvum. Int J Parasitol Drugs Drug Resist 2020; 14:80-90. [PMID: 33011650 PMCID: PMC7529613 DOI: 10.1016/j.ijpddr.2020.08.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 08/07/2020] [Accepted: 08/19/2020] [Indexed: 11/28/2022]
Abstract
Toxoplasma gondii and Cryptosporidium parvum are protozoan parasites that are highly prevalent and opportunistically infect humans worldwide, but for which completely effective and safe medications are lacking. Herein, we synthesized a series of novel small molecules bearing the diacyl urea scaffold and related structures, and screened them for in vitro cytotoxicity and antiparasitic activity against T. gondii and C. parvum. We identified one compound (GMG-1-09), and four compounds (JS-1-09, JS-2-20, JS-2-35 and JS-2-49) with efficacy against C. parvum and T. gondii, respectively, at low micromolar concentrations and showed appreciable selectivity in human host cells. Among the four compounds with efficacy against T. gondii, JS-1-09 representing the diacyl urea scaffold was the most effective, with an anti-Toxoplasma IC50 concentration (1.21 μM) that was nearly 53-fold lower than its cytotoxicity IC50 concentration, indicating that this compound has a good selectivity index. The other three compounds (JS-2-20, JS-2-35 and JS-2-49) were structurally more divergent from JS-1-09 as they represent the acyl urea and acyl carbamate scaffold. This appeared to correlate with their anti-Toxoplasma activity, suggesting that these compounds' potency can likely be enhanced by selective structural modifications. One compound, GMG-1-09 representing acyl carbamate scaffold, depicted in vitro efficacy against C. parvum with an IC50 concentration (32.24 μM) that was 14-fold lower than its cytotoxicity IC50 concentration in a human intestinal cell line. Together, our studies unveil a series of novel synthetic acyl/diacyl urea and acyl carbamate scaffold-based small molecule compounds with micromolar activity against T. gondii and C. parvum that can be explored further for the development of the much-needed novel anti-protozoal drugs.
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Affiliation(s)
- Kun Li
- Department of Pathobiology, College of Veterinary Medicine, University of Illinois at Urbana-Champaign, Urbana, IL 61802, USA
| | - Gregory M Grooms
- Chicago State University, College of Pharmacy, Department of Pharmaceutical Sciences, 9501 S. King Drive, Chicago, IL 60628, USA
| | - Shahbaz M Khan
- Department of Pathobiology, College of Veterinary Medicine, University of Illinois at Urbana-Champaign, Urbana, IL 61802, USA
| | - Anolan Garcia Hernandez
- Chicago State University, College of Pharmacy, Department of Pharmaceutical Sciences, 9501 S. King Drive, Chicago, IL 60628, USA
| | - William H Witola
- Department of Pathobiology, College of Veterinary Medicine, University of Illinois at Urbana-Champaign, Urbana, IL 61802, USA.
| | - Jozef Stec
- Chicago State University, College of Pharmacy, Department of Pharmaceutical Sciences, 9501 S. King Drive, Chicago, IL 60628, USA; Marshall B. Ketchum University, College of Pharmacy, Department of Pharmaceutical Sciences, 2575 Yorba Linda Blvd., Fullerton, CA 82831, USA.
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Hao Y, Guo J, Wang Z, Liu Y, Li Y, Ma D, Wang Q. Discovery of Tryptanthrins as Novel Antiviral and Anti-Phytopathogenic-Fungus Agents. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:5586-5595. [PMID: 32357298 DOI: 10.1021/acs.jafc.0c02101] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Plant diseases seriously affect the yield and quality of crops and are difficult to control. Tryptanthrin and its derivatives (tryptanthrins) were synthesized and evaluated for their antiviral activities and fungicidal activities. We found that tryptanthrins have good antiviral activities against tobacco mosaic virus (TMV) for the first time. Most of the tryptanthrins showed higher anti-TMV activities than that of ribavirin (inhibitory rates of 40, 37, and 38% at 500 μg/mL for inactivation, curative, and protection activities in vivo, respectively). Compound 3n (inhibitory rates of 52, 49, and 54% at 500 μg/mL for inactivation, curative, and protection activities in vivo, respectively) and compound 14 (inhibitory rates of 51, 48, and 53% at 500 μg/mL for inactivation, curative, and protection activities in vivo, respectively) emerged as new antiviral lead compounds with excellent antiviral activities. Compound 16 was selected for further antiviral mechanism research, which revealed that compound 16 could inhibit virus assembly by decomposing 20S coat protein (CP) disk. Molecular docking results showed that compounds 3n and 14, which have higher antiviral activities in vivo than that of compound 16, do show stronger interaction with TMV CP. Further fungicidal activity tests showed that tryptanthrins displayed broad-spectrum fungicidal activities, especially for compound 16. These compounds showed good selectivity to Physalospora piricola. In the current study, a small molecular library of tryptanthrin was constructed and the bioactivity spectrum of these compounds was broadened, which lays a foundation for their application in plant protection.
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Affiliation(s)
- Yanan Hao
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, People's Republic of China
| | - Jincheng Guo
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, People's Republic of China
| | - Ziwen Wang
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, People's Republic of China
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, People's Republic of China
| | - Yuxiu Liu
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, People's Republic of China
| | - Yongqiang Li
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, People's Republic of China
| | - Dejun Ma
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, People's Republic of China
| | - Qingmin Wang
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, People's Republic of China
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Sharma A, Gogoi P. Synthesis of 6-substituted indoloquinazolinones from arynes and 2-acyl-4-quinazolinones: a transition-metal free C–N and C–C bond formation strategy. NEW J CHEM 2020. [DOI: 10.1039/d0nj04395h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A versatile transition-metal free synthetic strategy has been developed for the direct synthesis of 6-substituted indoloquinazolinones from 2-acyl-4-quinazolinones and aryne precursors. This cascade strategy proceeds via successive C–N and C–C bond formation in a single reaction vessel.
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Affiliation(s)
- Abhilash Sharma
- Applied Organic Chemistry Group
- Chemical Science and Technology Division
- CSIR-North East Institute of Science and Technology
- Jorhat 785006
- India
| | - Pranjal Gogoi
- Applied Organic Chemistry Group
- Chemical Science and Technology Division
- CSIR-North East Institute of Science and Technology
- Jorhat 785006
- India
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20
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Deng Y, Wu T, Zhai SQ, Li CH. Recent progress on anti-Toxoplasma drugs discovery: Design, synthesis and screening. Eur J Med Chem 2019; 183:111711. [PMID: 31585276 DOI: 10.1016/j.ejmech.2019.111711] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 08/27/2019] [Accepted: 09/16/2019] [Indexed: 01/30/2023]
Abstract
Toxoplasma gondii severely threaten the health of immunocompromised patients and pregnant women as this parasite can cause several disease, including brain and eye disease. Current treatment for toxoplasmosis commonly have high cytotoxic side effects on host and require long durations ranging from one week to more than one year. The regiments lack efficacy to eradicate T. gondii tissue cysts to cure chromic infection results in the needs for long treatment and relapsing disease. In addition, there has not been approved drugs for treating the pregnant women infected by T. gondii. Moreover, Toxoplasma vaccine researches face a wide variety of challenges. Developing high efficient and low toxic agents against T. gondii is urgent and important. Over the last decade, tremendous progress have been made in identifying and developing novel compounds for the treatment of toxoplasmosis. This review summarized and discussed recent advances between 2009 and 2019 in exploring effective agents against T. gondii from five aspects of drug discovery.
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Affiliation(s)
- Yu Deng
- Institute of Veterinary Sciences & Pharmaceuticals, Chongqing Academy of Animal Sciences, Rongchang, 402460, China
| | - Tao Wu
- Institute of Veterinary Sciences & Pharmaceuticals, Chongqing Academy of Animal Sciences, Rongchang, 402460, China
| | - Shao-Qin Zhai
- Institute of Veterinary Sciences & Pharmaceuticals, Chongqing Academy of Animal Sciences, Rongchang, 402460, China
| | - Cheng-Hong Li
- Institute of Veterinary Sciences & Pharmaceuticals, Chongqing Academy of Animal Sciences, Rongchang, 402460, China.
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21
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Schepetkin IA, Khlebnikov AI, Potapov AS, Kovrizhina AR, Matveevskaya VV, Belyanin ML, Atochin DN, Zanoza SO, Gaidarzhy NM, Lyakhov SA, Kirpotina LN, Quinn MT. Synthesis, biological evaluation, and molecular modeling of 11H-indeno[1,2-b]quinoxalin-11-one derivatives and tryptanthrin-6-oxime as c-Jun N-terminal kinase inhibitors. Eur J Med Chem 2018; 161:179-191. [PMID: 30347329 DOI: 10.1016/j.ejmech.2018.10.023] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 08/20/2018] [Accepted: 10/09/2018] [Indexed: 12/19/2022]
Abstract
c-Jun N-terminal kinases (JNKs) play a central role in many physiologic and pathologic processes. We synthesized novel 11H-indeno[1,2-b]quinoxalin-11-one oxime analogs and tryptanthrin-6-oxime (indolo[2,1-b]quinazoline-6,12-dion-6-oxime) and evaluated their effects on JNK activity. Several compounds exhibited sub-micromolar JNK binding affinity and were selective for JNK1/JNK3 versus JNK2. The most potent compounds were 10c (11H-indeno[1,2-b]quinoxalin-11-one O-(O-ethylcarboxymethyl) oxime) and tryptanthrin-6-oxime, which had dissociation constants (Kd) for JNK1 and JNK3 of 22 and 76 nM and 150 and 275 nM, respectively. Molecular modeling suggested a mode of binding interaction at the JNK catalytic site and that the selected oxime derivatives were potentially competitive JNK inhibitors. JNK binding activity of the compounds correlated with their ability to inhibit lipopolysaccharide (LPS)-induced nuclear factor-κB/activating protein 1 (NF-κB/AP-1) activation in human monocytic THP-1Blue cells and interleukin-6 (IL-6) production by human MonoMac-6 cells. Thus, oximes with indenoquinoxaline and tryptanthrin nuclei can serve as specific small-molecule modulators for mechanistic studies of JNK, as well as potential leads for the development of anti-inflammatory drugs.
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Affiliation(s)
- Igor A Schepetkin
- Department of Microbiology and Immunology, Montana State University, Bozeman, MT, 59717, USA
| | - Andrei I Khlebnikov
- Kizhner Research Center, Tomsk Polytechnic University, Tomsk, 634050, Russia; Scientific Research Institute of Biological Medicine, Altai State University, Barnaul, 656049, Russia
| | - Andrei S Potapov
- Kizhner Research Center, Tomsk Polytechnic University, Tomsk, 634050, Russia
| | | | - Vladislava V Matveevskaya
- Kizhner Research Center, Tomsk Polytechnic University, Tomsk, 634050, Russia; Department of Chemistry, Siberian State Medical University, Tomsk, 634050, Russia
| | - Maxim L Belyanin
- Kizhner Research Center, Tomsk Polytechnic University, Tomsk, 634050, Russia
| | - Dmitriy N Atochin
- Kizhner Research Center, Tomsk Polytechnic University, Tomsk, 634050, Russia; Cardiovascular Research Center, Cardiology Division, Massachusetts General Hospital, Charlestown, MA, 02129, USA
| | - Svitlana O Zanoza
- A.V. Bogatsky Physico-Chemical Institute, National Academy of Sciences of Ukraine, Odessa, Ukraine
| | - Nadiya M Gaidarzhy
- A.V. Bogatsky Physico-Chemical Institute, National Academy of Sciences of Ukraine, Odessa, Ukraine
| | - Sergiy A Lyakhov
- A.V. Bogatsky Physico-Chemical Institute, National Academy of Sciences of Ukraine, Odessa, Ukraine
| | - Liliya N Kirpotina
- Department of Microbiology and Immunology, Montana State University, Bozeman, MT, 59717, USA
| | - Mark T Quinn
- Department of Microbiology and Immunology, Montana State University, Bozeman, MT, 59717, USA.
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Affiliation(s)
- Takumi Abe
- Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido
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23
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Guda R, Korra R, Balaji S, Palabindela R, Eerla R, Lingabathula H, Yellu NR, Kumar G, Kasula M. Design, synthesis and biological evaluation of 8-substituted-6-hydrazonoindolo[2,1- b ]quinazolin-12(6 H )-one scaffolds as potential cytotoxic agents: IDO-1 targeting molecular docking studies. Bioorg Med Chem Lett 2017; 27:4741-4748. [DOI: 10.1016/j.bmcl.2017.08.064] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2017] [Revised: 08/20/2017] [Accepted: 08/25/2017] [Indexed: 12/16/2022]
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24
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Kaur R, Manjal SK, Rawal RK, Kumar K. Recent synthetic and medicinal perspectives of tryptanthrin. Bioorg Med Chem 2017; 25:4533-4552. [DOI: 10.1016/j.bmc.2017.07.003] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Revised: 06/19/2017] [Accepted: 07/03/2017] [Indexed: 12/11/2022]
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25
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Remennikov GY. Synthesis of Condensed Heterocycles, Containing Partially Saturated Pyrimidine Nuclei, from Aromatic Pyrimidine Derivatives. J Heterocycl Chem 2017. [DOI: 10.1002/jhet.2864] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Alday PH, Doggett JS. Drugs in development for toxoplasmosis: advances, challenges, and current status. DRUG DESIGN DEVELOPMENT AND THERAPY 2017; 11:273-293. [PMID: 28182168 PMCID: PMC5279849 DOI: 10.2147/dddt.s60973] [Citation(s) in RCA: 181] [Impact Index Per Article: 25.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Toxoplasma gondii causes fatal and debilitating brain and eye diseases. Medicines that are currently used to treat toxoplasmosis commonly have toxic side effects and require prolonged courses that range from weeks to more than a year. The need for long treatment durations and the risk of relapsing disease are in part due to the lack of efficacy against T. gondii tissue cysts. The challenges for developing a more effective treatment for toxoplasmosis include decreasing toxicity, achieving therapeutic concentrations in the brain and eye, shortening duration, eliminating tissue cysts from the host, safety in pregnancy, and creating a formulation that is inexpensive and practical for use in resource-poor areas of the world. Over the last decade, significant progress has been made in identifying and developing new compounds for the treatment of toxoplasmosis. Unlike clinically used medicines that were repurposed for toxoplasmosis, these compounds have been optimized for efficacy against toxoplasmosis during preclinical development. Medicines with enhanced efficacy as well as features that address the unique aspects of toxoplasmosis have the potential to greatly improve toxoplasmosis therapy. This review discusses the facets of toxoplasmosis that are pertinent to drug design and the advances, challenges, and current status of preclinical drug research for toxoplasmosis.
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Affiliation(s)
- P Holland Alday
- Division of Infectious Diseases, Oregon Health & Science University
| | - Joseph Stone Doggett
- Division of Infectious Diseases, Oregon Health & Science University; Portland Veterans Affairs Medical Center, Portland, OR, USA
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Review of Experimental Compounds Demonstrating Anti-Toxoplasma Activity. Antimicrob Agents Chemother 2016; 60:7017-7034. [PMID: 27600037 DOI: 10.1128/aac.01176-16] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Toxoplasma gondii is a ubiquitous apicomplexan parasite capable of infecting humans and other animals. Current treatment options for T. gondii infection are limited and most have drawbacks, including high toxicity and low tolerability. Additionally, no FDA-approved treatments are available for pregnant women, a high-risk population due to transplacental infection. Therefore, the development of novel treatment options is needed. To aid this effort, this review highlights experimental compounds that, at a minimum, demonstrate inhibition of in vitro growth of T. gondii When available, host cell toxicity and in vivo data are also discussed. The purpose of this review is to facilitate additional development of anti-Toxoplasma compounds and potentially to extend our knowledge of the parasite.
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Guda R, Narsimha S, Babu R, Muthadi S, Lingabathula H, Palabindela R, Yellu NR, Kumar G, Kasula M. Novel substituted hydrazono indolo[2,1- b ]quinazoline-6,12-dione analogues as cytostatic agents: Synthesis, crystal structure, biological evaluation and molecular docking studies. Bioorg Med Chem Lett 2016; 26:5517-5523. [DOI: 10.1016/j.bmcl.2016.10.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 09/16/2016] [Accepted: 10/05/2016] [Indexed: 12/19/2022]
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29
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Kingi N, Bergman J. Thionation of Tryptanthrin, Rutaecarpine, and Related Molecules with a Reagent Prepared from P4S10 and Pyridine. J Org Chem 2016; 81:7711-6. [PMID: 27525546 DOI: 10.1021/acs.joc.6b01346] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Reaction of P4S10 in hot pyridine produces a crystalline solid which can be collected and used for thionations in other solvents such as acetonitrile and sulfolane. The biologically active natural products tryptanthrine, rutaecarpine, 7,8-dehydrorutaecarpine, and some related compounds have now been converted to thionated versions simply by heating the molecules with this thionating reagent in sulfolane (typically at 135 °C for 20 min) followed by a workup in water. No chromatography was necessary.
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Affiliation(s)
- Ngarita Kingi
- Department of Biosciences, Karolinska Institute, Novum , SE-141 57 Huddinge, Sweden.,Vironova Medical , SE-113 30 Stockholm, Sweden
| | - Jan Bergman
- Department of Biosciences, Karolinska Institute, Novum , SE-141 57 Huddinge, Sweden.,Vironova Medical , SE-113 30 Stockholm, Sweden
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30
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Abbas SY, El-Bayouki KAM, Basyouni WM. Utilization of isatoic anhydride in the syntheses of various types of quinazoline and quinazolinone derivatives. SYNTHETIC COMMUN 2016. [DOI: 10.1080/00397911.2016.1177087] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Samir Y. Abbas
- Organometallic and Organometalloid Chemistry Department, National Research Centre, Dokki, Cairo, Egypt
| | - Khairy A. M. El-Bayouki
- Organometallic and Organometalloid Chemistry Department, National Research Centre, Dokki, Cairo, Egypt
| | - Wahid M. Basyouni
- Organometallic and Organometalloid Chemistry Department, National Research Centre, Dokki, Cairo, Egypt
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31
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Ishikura M, Itoh T, Abe T, Choshi T. A One-Pot Synthesis of Phaitanthrin E Through Intermolecular Condensation/Intramolecular Aryl C-H Amination Cascade. HETEROCYCLES 2016. [DOI: 10.3987/com-16-13465] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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32
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Liao FM, Liu YL, Yu JS, Zhou F, Zhou J. An efficient catalyst-free Mukaiyama-aldol reaction of fluorinated enol silyl ethers with tryptanthrin. Org Biomol Chem 2015. [DOI: 10.1039/c5ob01125f] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report an efficient Mukaiyama-aldol reaction of tryptanthrin with fluorinated enol silyl ethers, which is carried out in methanol without the use of any catalyst. This represents the first modification of tryptanthrin by a fluoroalkyl group, which is applied to the total synthesis of the difluoro analogues of the natural product Phaitanthrin B.
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Affiliation(s)
- Fu-Min Liao
- Shanghai Key Laboratory of Green Chemistry and Chemical Process
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- P. R. China
| | - Yun-Lin Liu
- Shanghai Key Laboratory of Green Chemistry and Chemical Process
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- P. R. China
| | - Jin-Sheng Yu
- Shanghai Key Laboratory of Green Chemistry and Chemical Process
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- P. R. China
| | - Feng Zhou
- Shanghai Key Laboratory of Green Chemistry and Chemical Process
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- P. R. China
| | - Jian Zhou
- Shanghai Key Laboratory of Green Chemistry and Chemical Process
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- P. R. China
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Triazole-based compound as a candidate to develop novel medicines to treat toxoplasmosis. Antimicrob Agents Chemother 2014; 58:7583-5. [PMID: 25288090 DOI: 10.1128/aac.03832-14] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
This article reports anti-Toxoplasma gondii activity of 3-(thiophen-2-yl)-1,2,4-triazole-5-thione. The compound displayed significant and reproducible antiparasitic effects at nontoxic concentrations for the host cells, with an experimentally determined 50% inhibitory concentration (IC50) at least 30 times better than that of the known chemotherapeutic agent sulfadiazine. Purine nucleoside phosphorylase was defined as the probable target for anti-Toxoplasma activity of the tested compound. These results provide the foundation for future work to develop a new class of medicines to better treat toxoplasmosis.
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34
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Abe T, Itoh T, Choshi T, Hibino S, Ishikura M. One-pot synthesis of tryptanthrin by the Dakin oxidation of indole-3-carbaldehyde. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.07.113] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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35
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Tsukano C, Okuno M, Nishiguchi H, Takemoto Y. Palladium(0)‐Catalyzed CarbonHydrogen Bond Functionalization for the Synthesis of Indoloquinazolinones. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400078] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Chihiro Tsukano
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo‐ku, Kyoto 606‐8501, Japan, Fax: (+81)‐(0)75‐753‐4532
| | - Masataka Okuno
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo‐ku, Kyoto 606‐8501, Japan, Fax: (+81)‐(0)75‐753‐4532
| | - Hiromi Nishiguchi
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo‐ku, Kyoto 606‐8501, Japan, Fax: (+81)‐(0)75‐753‐4532
| | - Yoshiji Takemoto
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo‐ku, Kyoto 606‐8501, Japan, Fax: (+81)‐(0)75‐753‐4532
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Wei J, Xiao W, Zhou CY, Che CM. Ruthenium porphyrin catalyzed diimination of indoles with aryl azides as the nitrene source. Chem Commun (Camb) 2014; 50:3373-6. [DOI: 10.1039/c3cc49052a] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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37
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Nelson AC, Kalinowski ES, Jacobson TL, Grundt P. Formation of tryptanthrin compounds upon Oxone-induced dimerization of indole-3-carbaldehydes. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.09.124] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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