1
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Kushwaha P, Kumar V, Saha B. Current development of β-carboline derived potential antimalarial scaffolds. Eur J Med Chem 2023; 252:115247. [PMID: 36931118 DOI: 10.1016/j.ejmech.2023.115247] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 02/26/2023] [Accepted: 03/01/2023] [Indexed: 03/12/2023]
Abstract
β-Carboline alkaloids are an eminent class of nitrogen-based natural alkaloids and therapeutic molecules which exert various pharmacological activities through diverse mechanisms. A lot of attention has recently been directed towards this moiety in order to develop effective antimalarial drugs. "Malaria", an acute febrile illness caused by diverse Plasmodium parasites, is a continuing and escalating problem that devastates economically less developed countries by significantly increased morbidity and mortality rates. The mounting parasite resistance towards the antimalarial drugs and augmenting the 'habitat of the insect vector' are creating a catastrophe, indicating an urgent need for new efficacious therapeutics to combat this tropical disease. This article comprehensively encapsulates the clinical and preclinical antimalarial scaffolds comprising β-carboline moiety in their structure. Herein, various classes of natural and semi-synthetic analogues of β-carbolines reported in the last decade (2011-2021) have been extensively studied and illustrated. This review will help the readers to develop an insight into the β-carboline based antimalarials and molecular mechanisms lying behind their mode of action, which is anticipated to be beneficial for the future development of new β-carboline based therapeutics.
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Affiliation(s)
- Preeti Kushwaha
- Amity Institute of Biotechnology, Amity University, Sector 125, Noida, 201303, Uttar Pradesh, India
| | - Vipin Kumar
- Sophisticated Analytical Instrument Facility and Research Division, CSIR-Central Drug Research Institute, Lucknow, 226031, Uttar Pradesh, India
| | - Biswajit Saha
- Amity Institute of Biotechnology, Amity University, Sector 125, Noida, 201303, Uttar Pradesh, India.
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2
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Kumar V, Saxena A, Patra R, Ray D, Li HY, Saha B. Synthesis of fused polycyclic β-carboline derivatives using Ugi-4CR followed by cascade cyclization. Mol Divers 2022; 27:951-957. [PMID: 35652975 DOI: 10.1007/s11030-022-10451-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 04/23/2022] [Indexed: 11/28/2022]
Abstract
Ugi-four component reaction (Ugi-4CR) is extremely attractive for diversity-oriented and step economical synthesis as evident from past applications. Here we report the synthesis of fused polycyclic β-carboline derivatives by sequential Pictet-Spengler's and Ugi-4CR multi-component reaction followed by cascade cyclization. The post cyclisation of Ugi product provides conformationally stable heterocyclic molecule that is expected to be suitable for interaction with different biological targets. The methodology provides a simple and facile access to heterocycles embedded in polycyclic framework which otherwise seems difficult to synthesize by conventional methods. Synthesis of fused Polycyclic β-Carboline Derivatives Using Ugi-4CR Followed by Cascade Cyclization.
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Affiliation(s)
- Vipin Kumar
- Amity Institute of Click Chemistry Research and Studies, Amity University, Sector 125, Noida, Uttar Pradesh, 201313, India
| | - Anjali Saxena
- Amity Institute of Biotechnology, Amity University, Sector 125, Noida, Uttar Pradesh, 201313, India
| | - Ranjan Patra
- Amity Institute of Click Chemistry Research and Studies, Amity University, Sector 125, Noida, Uttar Pradesh, 201313, India
| | - Devalina Ray
- Amity Institute of Click Chemistry Research and Studies, Amity University, Sector 125, Noida, Uttar Pradesh, 201313, India.,Amity Institute of Biotechnology, Amity University, Sector 125, Noida, Uttar Pradesh, 201313, India
| | - Hong-Yu Li
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, AR, 72205, USA
| | - Biswajit Saha
- Amity Institute of Biotechnology, Amity University, Sector 125, Noida, Uttar Pradesh, 201313, India.
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3
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Zhang Z, Liu X, Ji L, Zhang T, Jia Z, Loh TP. Metal-Free Access to (Spirocyclic)Tetrahydro-β-carbolines in Water Using an Ion-Pair as a Superacidic Precatalyst. ACS Catal 2022. [DOI: 10.1021/acscatal.1c05546] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Zhenguo Zhang
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Xiaoxiao Liu
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Liang Ji
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Ting Zhang
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Zhenhua Jia
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Teck-Peng Loh
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816, China
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
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4
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Kumar V, Sachdeva C, Waidha K, Sharma S, Ray D, Kumar Kaushik N, Saha B. In Vitro and In Silico Anti‐plasmodial Evaluation of Newly Synthesized β‐Carboline Derivatives. ChemistrySelect 2021. [DOI: 10.1002/slct.202101355] [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]
Affiliation(s)
- Vipin Kumar
- Amity Institute of Click Chemistry Research and Studies Amity University Sector 125 Noida 201313, Uttar Pradesh India
| | - Cheryl Sachdeva
- Amity Institute of Virology and Immunology Institution Amity University Sector 125 Noida 201313, Uttar Pradesh India
| | - Kamran Waidha
- Amity Institute of Biotechnology Amity University Sector 125 Noida 201313, Uttar Pradesh India
| | - Sunil Sharma
- Chemical Engineering Department National Tsing Hua University Hsinchu Taiwan 30013
| | - Devalina Ray
- Amity Institute of Biotechnology Amity University Sector 125 Noida 201313, Uttar Pradesh India
| | - Naveen Kumar Kaushik
- Amity Institute of Virology and Immunology Institution Amity University Sector 125 Noida 201313, Uttar Pradesh India
| | - Biswajit Saha
- Amity Institute of Biotechnology Amity University Sector 125 Noida 201313, Uttar Pradesh India
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5
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Soni JP, Yeole Y, Shankaraiah N. β-Carboline-based molecular hybrids as anticancer agents: a brief sketch. RSC Med Chem 2021; 12:730-750. [PMID: 34124672 PMCID: PMC8152596 DOI: 10.1039/d0md00422g] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 02/28/2021] [Indexed: 01/19/2023] Open
Abstract
Cancer is a huge burden on the healthcare system and is foremost cause of mortality across the globe. Among various therapeutic strategies, chemotherapy plays an enormous role in overcoming the challenges of treating cancer, especially in late stage detection. However, limitations such as extreme side/adverse effects and drug resistance associated with available drugs have impelled the development of novel chemotherapeutic agents. In this regard, we have reviewed the development of β-carboline-based chemotherapeutic agents reported in last five years. The review mainly emphasizes on the molecular hybrids of β-carbolines with various pharmacophores, their synthetic strategies, and in vitro anticancer evaluation. In addition, the mechanisms of action, in silico studies, structural influence on the potency and selectivity among diverse cancer cell lines have been critically presented. The review updates readers on the diverse molecular hybrids prepared and the governing structural features of high potential molecules that can help in the future development of novel cytotoxic agents.
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Affiliation(s)
- Jay Prakash Soni
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
| | - Yogesh Yeole
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
| | - Nagula Shankaraiah
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
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6
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Waidha K, Saxena A, Kumar P, Sharma S, Ray D, Saha B. Design and identification of novel annomontine analogues against SARS-CoV-2: An in-silico approach. Heliyon 2021; 7:e06657. [PMID: 33824915 PMCID: PMC8017494 DOI: 10.1016/j.heliyon.2021.e06657] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 08/20/2020] [Accepted: 03/29/2021] [Indexed: 12/27/2022] Open
Abstract
AIMS COVID-19 has currently emerged as the major global pandemic affecting the lives of people across the globe. It broke out from Wuhan Province of China, first reported to WHO on 31st December 2019 as "Pneumonia of unknown cause". Over time more people were infected with this virus, and the only tactic to ensure safety was to take precautionary measures due to the lack of any effective treatment or vaccines. As a result of unavailability of desired efficacy for previously repurposed drugs, exploring novel scaffolds against the virus has become the need of the hour. MAIN METHODS In the present study, 23 new annomontine analogues were designed representing β-Carboline based scaffolds. A hypothesis on its role as an effective ligand was laid for target-specific binding in SARS-CoV-2. These molecules were used for molecular docking analysis against the multiple possible drug targets using the Maestro Interface. To ensure the drug safety of these molecules ADME/Tox analysis was also performed. KEY FINDINGS The molecular docking analysis of the 23 novel molecules indicated the efficiency of these derivates against COVID-19. The efficiency of molecules was computed by the summation of the docking score against each target defined as LigE Score and compared against Hydroxycholoquine as a standard. Based on the docking score, the majority of the annomontine derivatives were found to have increased binding affinity with targets as compared to hydroxycholoquine. SIGNIFICANCE Due to the lack of efficiency, effectiveness, and failure of already repurposed drugs against the COVID-19, the exploration of the novel scaffold that can act as effective treatment is much needed. The current study hence emphasizes the potential of Annomontine based - β- Carboline derivatives as a potential drug candidate against COVID-19.
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Affiliation(s)
- Kamran Waidha
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida, 125, 201301, India
| | - Anjali Saxena
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida, 125, 201301, India
| | - Prashant Kumar
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida, 125, 201301, India
| | - Sunil Sharma
- Chemical Engineering Department, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Devalina Ray
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida, 125, 201301, India
| | - Biswajit Saha
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida, 125, 201301, India
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7
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Chauhan M, Saxena A, Saha B. An insight in anti-malarial potential of indole scaffold: A review. Eur J Med Chem 2021; 218:113400. [PMID: 33823394 DOI: 10.1016/j.ejmech.2021.113400] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 03/19/2021] [Accepted: 03/21/2021] [Indexed: 10/21/2022]
Abstract
Malaria is a major parasitic disease in tropical and sub-tropical regions. Pertaining to the sustaining resistance in malarial parasite against the available drugs, novel treatment options are the need of the hour. In this resolve recently, focus has shifted to finding the natural alternatives that possess anti-plasmodial activity for combatting malaria. Drawing on the text written in ancient scriptures and Ayurveda, natural compounds are now being screened for their therapeutic properties. Indole is one such natural compound, present in all living organisms, it displays a range of therapeutic activities including anticancer, anti-inflammatory, antimalarial etc. In this review, we have discussed various indole scaffold as well as the semi-synthetic drugs containing indole moiety that have been synthesized for malaria treatment.
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Affiliation(s)
- Mehak Chauhan
- Amity Institute of Biotechnology, Amity University, Noida, Uttar Pradesh, India
| | - Anjali Saxena
- Amity Institute of Biotechnology, Amity University, Noida, Uttar Pradesh, India
| | - Biswajit Saha
- Amity Institute of Biotechnology, Amity University, Noida, Uttar Pradesh, India.
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8
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Buaban K, Phutdhawong W, Taechowisan T, Phutdhawong WS. Synthesis and Investigation of Tetrahydro-β-carboline Derivatives as Inhibitors of Plant Pathogenic Fungi. Molecules 2021; 26:molecules26010207. [PMID: 33401587 PMCID: PMC7796172 DOI: 10.3390/molecules26010207] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 12/23/2020] [Accepted: 12/30/2020] [Indexed: 11/17/2022] Open
Abstract
A series of tetrahydro-ß-carbolines substituted with an alkyl or acyl side chain was synthesized and screened for its antifungal activity against plant pathogenic fungi (Bipolaris oryzae, Curvularia lunata, Fusarium semitectum, and Fusarium fujikuroi). The structure activity relationship revealed that the substituent at the piperidine nitrogen plays an important role for increasing antifungal activities. In this series, 2-octyl-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole (3g) displayed potent antifungal activities with a minimum inhibitory concentration of 0.1 μg/mL, including good inhibitory activity to the radial growth of fungus at a concentration of 100 μg/mL compared to amphotericin B.
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Affiliation(s)
- Koonchira Buaban
- Department of Chemistry, Faculty of Science, Silpakorn University, Nakhon Pathom 73000, Thailand;
| | - Weerachai Phutdhawong
- Department of Science, Faculty of Liberal Arts and Science, Kamphaeng Sean Campus, Kasetsart University, Nakhon Pathom 73140, Thailand;
| | - Thongchai Taechowisan
- Department of Microbiology, Faculty of Science, Silpakorn University, Nakhon Pathom 73000, Thailand;
| | - Waya S. Phutdhawong
- Department of Chemistry, Faculty of Science, Silpakorn University, Nakhon Pathom 73000, Thailand;
- Correspondence:
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9
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Gholap SS, Kadu VR. Natural surfactants assisted an efficient synthesis of tetrahydro-β-carbolines. RESULTS IN CHEMISTRY 2021. [DOI: 10.1016/j.rechem.2021.100183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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10
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Choi S, Oh H, Sim J, Yu E, Shin S, Park CM. Metal-Free Synthesis of Indolopyrans and 2,3-Dihydrofurans Based on Tandem Oxidative Cycloaddition. Org Lett 2020; 22:5528-5534. [PMID: 32628496 DOI: 10.1021/acs.orglett.0c01896] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The synthesis of versatile scaffold indolopyrans based on C-C radical-radical cross-coupling under metal-free conditions is described. The reaction involving single electron transfer between coupling partners followed by cage collapse allows highly selective cross-coupling while employing only equimolar amounts of coupling partners. Moreover, the mechanistic manifold was expanded for the functionalization of enamines to give the stereoselective synthesis of 2,3-dihydrofurans. This iodine-mediated oxidative coupling features mild conditions and fast reaction kinetics.
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Affiliation(s)
- Subin Choi
- Department of Chemistry, UNIST (Ulsan National Institute of Science & Technology), Ulsan 44919, Korea
| | - Hyeonji Oh
- Department of Chemistry, UNIST (Ulsan National Institute of Science & Technology), Ulsan 44919, Korea
| | - Jeongwoo Sim
- Department of Chemistry, UNIST (Ulsan National Institute of Science & Technology), Ulsan 44919, Korea
| | - Eunsoo Yu
- Department of Chemistry, UNIST (Ulsan National Institute of Science & Technology), Ulsan 44919, Korea
| | - Seunghoon Shin
- Department of Chemistry, Hanyang University, Seoul 04763, Korea
| | - Cheol-Min Park
- Department of Chemistry, UNIST (Ulsan National Institute of Science & Technology), Ulsan 44919, Korea
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11
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Shingare RD, Aniebok V, Lee HW, MacMillan JB. Synthesis and Investigation of the Abiotic Formation of Pyonitrins A-D. Org Lett 2020; 22:1516-1519. [PMID: 32017580 PMCID: PMC7864527 DOI: 10.1021/acs.orglett.0c00098] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
Pyonitrins
A–D are recently isolated natural products from
the insect-associated Pseudomonas protegens strain,
which were isolated from complex fractions that exhibited antifungal
activity via an in vivo murine candidiasis assay.
Genomic studies of Pseudomonas protegens suggested
that pyonitrins A–D are formed via a spontaneous nonenzymatic
reaction between biosynthetic intermediates of two well-known natural
products pyochelin and pyrrolnitrin. Herein we have accomplished the
first biomimetic total synthesis of pyonitrins A–D in three
steps and studied the nonenzymatic formation of the pyonitrins using 15N NMR spectroscopy.
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Affiliation(s)
- Rahul D Shingare
- Department of Chemistry and Biochemistry , University of California, Santa Cruz , Santa Cruz , California 95064 , United States
| | - Victor Aniebok
- Department of Chemistry and Biochemistry , University of California, Santa Cruz , Santa Cruz , California 95064 , United States
| | - Hsiau-Wei Lee
- Department of Chemistry and Biochemistry , University of California, Santa Cruz , Santa Cruz , California 95064 , United States
| | - John B MacMillan
- Department of Chemistry and Biochemistry , University of California, Santa Cruz , Santa Cruz , California 95064 , United States
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12
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A facile and efficient method for the synthesis of crystalline tetrahydro-β-carbolines via the Pictet-Spengler reaction in water. Sci Rep 2020; 10:1057. [PMID: 31974432 PMCID: PMC6978303 DOI: 10.1038/s41598-020-57911-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Accepted: 01/02/2020] [Indexed: 11/12/2022] Open
Abstract
A facile and efficient synthesis of tetrahydro-β-carbolines (tryptolines) in one step from tryptamine and aldehydes, in an environmentally friendly water solvent, has been investigated. This convenient and clean synthesis of various tryptolines was facilitated by l-tartaric acid, a natural compound, to obtain the desired products as clear crystals. Among the four crystalline products, the most substituted tryptoline 2 showed the best inhibitory activity against EJ cells and the least cytotoxicity, with an LC50 value of 1.49 mg/mL, against brine shrimp larvae.
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13
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Lennon Luo SX, Liu Y, Lambrecht MJ, Ortwine DF, DiPasquale AG, Liang J, Wang X, Zbieg JR, Li J. cis-Selective synthesis of 1,3-disubstituted tetrahydro-β-carbolines from N-sulfonyl N,S-acetals. Org Biomol Chem 2019; 17:9510-9513. [PMID: 31657418 DOI: 10.1039/c9ob01796h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Nucleophilic addition of Grignard reagents to tetrahydro-β-carboline (THC) N-sulfonyl N,S-acetal generates exclusively cis-1,3-disubstituted THCs with a unique 1,3-diaxial conformation. The stereochemical relationship of the 1,3-substituents was confirmed by 2-dimensional NMR spectroscopy and X-ray crystallography. The mechanism of the reaction is proposed based on crystal structures and molecular orbital calculations.
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14
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15
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Gorki V, Singh R, Walter NS, Bagai U, Salunke DB. Synthesis and Evaluation of Antiplasmodial Efficacy of β-Carboline Derivatives against Murine Malaria. ACS OMEGA 2018; 3:13200-13210. [PMID: 30411030 PMCID: PMC6217594 DOI: 10.1021/acsomega.8b01833] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 09/28/2018] [Indexed: 05/26/2023]
Abstract
The difficulty of developing an efficient malaria vaccine along with increasing spread of multidrug resistant strain of Plasmodium falciparum to the available antimalarial drugs poses the need to discover safe and efficacious antimalarial drugs to control malaria. An alternative strategy is to synthesize compounds possessing structures similar to the active natural products or marketed drugs. Several biologically active natural products and drugs contain β-carboline moiety. In the present study, few selected β-carboline derivatives have been synthesized and tested for their in vitro and in vivo antiplasmodial activity against the rodent malaria parasite Plasmodium berghei (NK-65). The designed analogs exhibited considerable in vitro antimalarial activity. Two compounds (1R,3S)-methyl 1-(benzo[d][1,3]dioxol-5-yl)-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole-3-carboxylate (9a) and (1R,3S)-methyl 1-(pyridin-3-yl)-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole-3-carboxylate (9b) were further selected for in vivo studies. Both the lead compounds (9a and 9b) were observed to be safe for oral administration. The therapeutic effective dose (ED50) for 9a and 9b were determined and in the animal model, 9a (at 50 mg/kg dose) exhibited better activity in terms of parasite clearance and enhancement of host survival. Biochemical investigations also point toward the safety of the compound to the hepatic and renal functions of the rodent host. Further studies are underway to explore its activity alone as well as in combination therapy with artesunate against the human malaria parasite P. falciparum.
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Affiliation(s)
- Varun Gorki
- Parasitology
Laboratory, Department of Zoology, and Department of Chemistry and Centre
of Advanced Studies in Chemistry, Panjab
University, Chandigarh 160014, India
| | - Rahul Singh
- Parasitology
Laboratory, Department of Zoology, and Department of Chemistry and Centre
of Advanced Studies in Chemistry, Panjab
University, Chandigarh 160014, India
| | - Neha Sylvia Walter
- Parasitology
Laboratory, Department of Zoology, and Department of Chemistry and Centre
of Advanced Studies in Chemistry, Panjab
University, Chandigarh 160014, India
| | - Upma Bagai
- Parasitology
Laboratory, Department of Zoology, and Department of Chemistry and Centre
of Advanced Studies in Chemistry, Panjab
University, Chandigarh 160014, India
| | - Deepak B. Salunke
- Parasitology
Laboratory, Department of Zoology, and Department of Chemistry and Centre
of Advanced Studies in Chemistry, Panjab
University, Chandigarh 160014, India
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16
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Rahman MT, Cook JM. Unprecedented Stereocontrol in the Synthesis of 1,2,3-Trisubstituted Tetrahydro-β-carbolines through an Asymmetric Pictet-Spengler Reaction towards Sarpagine-Type Indole Alkaloids. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800600] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- M. Toufiqur Rahman
- Department of Chemistry and Biochemistry; University of Wisconsin-Milwaukee; 3210 N Cramer Street 53211 Milwaukee WI- USA
| | - James M. Cook
- Department of Chemistry and Biochemistry; University of Wisconsin-Milwaukee; 3210 N Cramer Street 53211 Milwaukee WI- USA
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17
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Synthesis of All Stereoisomers of 1-(4-Methoxyphenyl)-2,3,4,9-tetrahydro-N-methyl-1H-pyrido[3,4-b]indole-3-carboxamide. MOLBANK 2018. [DOI: 10.3390/m973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
In this study, all four stereoisomers of tryptoline or tetrahydro-β-carboline were synthesized in high yields by the catalyst-free amidation of methyl ester using methylamine under mild conditions. All isomers of the obtained amide and the precursor methyl ester were subjected to cell viability measurements on HeLa cells. The results indicated that the stereochemistry of the derivatives is clearly related to cell viability.
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18
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Urmode TD, Dawange MA, Shinde VS, Kusurkar RS. Synthesis of spiroindolone scaffolds by Pictet-Spengler spirocyclisation using β-cyclodextrin-SO3H as a recyclable catalyst. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.05.089] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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19
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Meesala R, Arshad ASM, Mordi MN, Mansor SM. Iodine-catalyzed one-pot decarboxylative aromatization of tetrahydro-β-carbolines. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.10.069] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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20
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Slupska M, Pulka-Ziach K, Deluga E, Sosnowski P, Wilenska B, Kozminski W, Misicka A. Synthesis of rigid tryptophan mimetics by the diastereoselective Pictet-Spengler reaction ofβ3-homo-tryptophan derivatives with chiralα-amino aldehydes. J Pept Sci 2015; 21:893-904. [DOI: 10.1002/psc.2832] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2015] [Revised: 09/15/2015] [Accepted: 10/01/2015] [Indexed: 12/29/2022]
Affiliation(s)
- Marta Slupska
- Faculty of Chemistry; University of Warsaw; Warsaw Poland
| | | | - Edyta Deluga
- Faculty of Chemistry; University of Warsaw; Warsaw Poland
| | | | - Beata Wilenska
- Faculty of Chemistry; University of Warsaw; Warsaw Poland
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21
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Muscia GC, De María LO, Buldain GY, Asís SE. Ultrasound Assisted Pictet-Spengler Synthesis of Tetrahydro-β-Carboline Derivatives. J Heterocycl Chem 2015. [DOI: 10.1002/jhet.2318] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Gisela C. Muscia
- Departamento de Química Orgánica, Facultad de Farmacia y Bioquímica; Universidad de Buenos Aires; Junín 956 C1113AAB Ciudad Autónoma de Buenos Aires Argentina
| | - Leonardo O. De María
- Departamento de Química Orgánica, Facultad de Farmacia y Bioquímica; Universidad de Buenos Aires; Junín 956 C1113AAB Ciudad Autónoma de Buenos Aires Argentina
| | - Graciela Y. Buldain
- Departamento de Química Orgánica, Facultad de Farmacia y Bioquímica; Universidad de Buenos Aires; Junín 956 C1113AAB Ciudad Autónoma de Buenos Aires Argentina
| | - Silvia E. Asís
- Departamento de Química Orgánica, Facultad de Farmacia y Bioquímica; Universidad de Buenos Aires; Junín 956 C1113AAB Ciudad Autónoma de Buenos Aires Argentina
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22
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Reddy GN, Rao BM, Vijay M, Devi BP, Prasad R, Reddy BS. Bioglycerol-derived carbon−SO3H as a recyclable catalyst for the synthesis of tetrahydro-β-carbolines. CAN J CHEM 2015. [DOI: 10.1139/cjc-2014-0350] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A variety of aldehydes undergo smooth coupling with N-tosyltryptamine in the presence of carbon−SO3H in ethanol at 80 °C to furnish the corresponding tetrahydro-β-carbolines in excellent yields with high selectivity. The coupling of tryptamine with isatins affords the respective spiro-tetrahydro-β-carbolines in good yields. The use of a recyclable solid acid catalyst makes this method simple, convenient, and cost-effective.
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Affiliation(s)
- G. Niranjan Reddy
- Natural Product Chemistry, Indian Institute of Chemical Technology, Hyderabad 500 007, India
| | - B. Maheshwar Rao
- Natural Product Chemistry, Indian Institute of Chemical Technology, Hyderabad 500 007, India
| | - M. Vijay
- Center for Lipid Research, Indian Institute of Chemical Technology, Hyderabad 500 007, India
| | - B.L.A. Prabhavathi Devi
- Center for Lipid Research, Indian Institute of Chemical Technology, Hyderabad 500 007, India
| | - R.B.N. Prasad
- Center for Lipid Research, Indian Institute of Chemical Technology, Hyderabad 500 007, India
| | - B.V. Subba Reddy
- Natural Product Chemistry, Indian Institute of Chemical Technology, Hyderabad 500 007, India
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23
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Viveros-Ceballos JL, Sayago FJ, Cativiela C, Ordóñez M. First Practical and Efficient Synthesis of 3-Phosphorylated β-Carboline Derivatives Using the Pictet-Spengler Reaction. European J Org Chem 2015. [DOI: 10.1002/ejoc.201403418] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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24
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Hussain H, Al-Harrasi A, Al-Rawahi A, Green IR, Gibbons S. Fruitful decade for antileishmanial compounds from 2002 to late 2011. Chem Rev 2014; 114:10369-428. [PMID: 25253511 DOI: 10.1021/cr400552x] [Citation(s) in RCA: 108] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Hidayat Hussain
- UoN Chair of Oman's Medicinal Plants and Marine Natural Products, University of Nizwa , P.O. Box 33, Birkat Al Mauz, Nizwa 616, Sultanate of Oman
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25
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Ábrányi-Balogh P, Dancsó A, Frigyes D, Volk B, Keglevich G, Milen M. Convenient synthesis of 1-aryl-9H-β-carboline-3-carbaldehydes and their transformation into dihydropyrimidinone derivatives by Biginelli reaction. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.06.073] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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26
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Wang LN, Shen SL, Qu J. Simple and efficient synthesis of tetrahydro-β-carbolines via the Pictet–Spengler reaction in 1,1,1,3,3,3-hexafluoro-2-propanol (HFIP). RSC Adv 2014. [DOI: 10.1039/c4ra03628j] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
1,1,1,3,3,3-Hexafluoro-2-propanol (HFIP) can act as both the solvent and the catalyst to effectively promote the Pictet–Spengler reaction.
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Affiliation(s)
- Li-Na Wang
- State Key Laboratory of Elemento-Organic Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Nankai University
- Tianjin, China
| | - Su-Li Shen
- State Key Laboratory of Elemento-Organic Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Nankai University
- Tianjin, China
| | - Jin Qu
- State Key Laboratory of Elemento-Organic Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Nankai University
- Tianjin, China
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27
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Pandey AK, Sharma R, Singh A, Shukla S, Srivastava K, Puri SK, Kumar B, Chauhan PMS. Synthesis of biologically active pyridoimidazole/imidazobenzothiazole annulated polyheterocycles using cyanuric chloride in water. RSC Adv 2014. [DOI: 10.1039/c4ra03415e] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An efficient and mild protocol for rapid access to N-fused polyheterocycles via Pictet–Spengler type 6-endo cyclization by cyanuric chloride in aqueous medium has been developed.
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Affiliation(s)
- Anand Kumar Pandey
- Medicinal and Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow, India
| | - Rashmi Sharma
- Medicinal and Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow, India
| | - Awantika Singh
- Sophisticated Analytical Instrument Facility
- CSIR-Central Drug Research Institute
- Lucknow, India
| | - Sanjeev Shukla
- Sophisticated Analytical Instrument Facility
- CSIR-Central Drug Research Institute
- Lucknow, India
| | - Kumkum Srivastava
- Division of Parasitology
- CSIR-Central Drug Research Institute
- Lucknow, India
| | - Sunil K. Puri
- Division of Parasitology
- CSIR-Central Drug Research Institute
- Lucknow, India
| | - Brijesh Kumar
- Sophisticated Analytical Instrument Facility
- CSIR-Central Drug Research Institute
- Lucknow, India
| | - Prem M. S. Chauhan
- Medicinal and Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow, India
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28
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Earle MJ, Noè M, Perosa A, Seddon KR. Improved synthesis of tadalafil using dimethyl carbonate and ionic liquids. RSC Adv 2014. [DOI: 10.1039/c3ra45982a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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29
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30
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Hanyu M, Takada Y, Hashimoto H, Kawamura K, Zhang MR, Fukumura T. Carbon-11 radiolabeling of an oligopeptide containing tryptophan hydrochloride via a Pictet-Spengler reaction using carbon-11 formaldehyde. J Pept Sci 2013; 19:663-8. [PMID: 23946162 DOI: 10.1002/psc.2546] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2013] [Revised: 07/15/2013] [Accepted: 07/17/2013] [Indexed: 02/03/2023]
Abstract
A procedure for the synthesis of a(11)C-labeled oligopeptide containing [1-(11)C]1,2,3,4-tetrahydro-β-carboline-3-carboxylic acid ([1-(11)C]Tpi) from the corresponding Trp•HCl-containing peptides has been developed involving a Pictet-Spengler reaction with [(11) C]formaldehyde. The synthesis of [1-(11)C]Tpi from Trp and [(11)C]formaldehyde was examined as a model reaction with the aim of developing a facile and effective method for the labeling of peptides with carbon-11. The Pictet-Spengler reaction of Trp and [(11)C]formaldehyde in acidic media (TsOH or HCl) afforded the desired [1-(11)C]Tpi in a moderate radiochemical yield. Herein, the application of a Pictet-Spengler reaction to an aqueous solution of Trp•HCl gave the desired product with a radiochemical yield of 45.2%. The RGD peptide cyclo[Arg-Gly-Asp-D-Tyr-Lys] was then selected as a substrate for the labeling reaction with [(11)C]formaldehyde. The radiolabeling of a Trp•HCl-containing RGD peptide using the Pictet-Spengler reaction was successful. Furthermore, the remote-controlled synthesis of a [1-(11)C]Tpi-containing RGD peptide was attempted by using an automatic production system to generate [(11)C]CH3 I. The radiochemical yield of the [1-(11) C]Tpi-containing RGD at the end of synthesis (EOS) was 5.9 ± 1.9% (n = 4), for a total synthesis time of about 35 min. The specific activity was 85.7 ± 9.4 GBq/µmol at the EOS.
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Affiliation(s)
- Masayuki Hanyu
- Molecular Probe Program, Molecular Imaging Center, National Institute of Radiological Science, 4-9-1 Anagawa, Inage-ku, Chiba, 263-8555, Japan
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31
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Sharma A, Singh M, Rai NN, Sawant D. Mild and efficient cyanuric chloride catalyzed Pictet-Spengler reaction. Beilstein J Org Chem 2013; 9:1235-42. [PMID: 23843919 PMCID: PMC3701375 DOI: 10.3762/bjoc.9.140] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2013] [Accepted: 06/07/2013] [Indexed: 11/23/2022] Open
Abstract
A practical, mild and efficient protocol for the Pictet–Spengler reaction catalyzed by cyanuric chloride (trichloro-1,3,5-triazine, TCT) is described. The 6-endo cyclization of tryptophan/tryptamine and modified Pictet–Spengler substrates with both electron-withdrawing and electron-donating aldehydes was carried out by using a catalytic amount of TCT (10 mol %) in DMSO under a nitrogen atmosphere. TCT catalyzed the Pictet–Spengler reaction involving electron-donating aldehydes in excellent yield. Thus, it has a distinct advantage over the existing methodologies where electron-donating aldehydes failed to undergo 6-endo cyclization. Our methodology provided broad substrate scope and diversity. This is indeed the first report of the use of TCT as a catalyst for the Pictet–Spengler reaction.
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Affiliation(s)
- Ashish Sharma
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER)-Rae Bareli, ITI Compound, Rae Bareli-229010 (UP), India
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32
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Comparative evaluation of a Pictet–Spengler protocol in microwave-assisted conversions of tryptamine with aryl- and carboxyaryl aldehydes: role of ring strain in cyclocondensation of the primarily formed carboxyaryl-substituted β-carbolines. MONATSHEFTE FUR CHEMIE 2013. [DOI: 10.1007/s00706-013-1007-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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33
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Samala S, Saifuddin M, Mandadapu AK, Kundu B. Three-Component Tandem-Intramolecular Hydroamination Reactions in One Pot Involving Indoles, 2-Aminobenzyl Alcohols, and 2-Alkynylbenzaldehydes: Consecutive 7-endo-trigand Electrophilic 6-endo-digCyclizations. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300100] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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34
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Agarwal PK, Dathi MD, Saifuddin M, Kundu B. Engineering of indole-based tethered biheterocyclic alkaloid meridianin into β-carboline-derived tetracyclic polyheterocycles via amino functionalization/6-endo cationic π-cyclization. Beilstein J Org Chem 2012; 8:1901-8. [PMID: 23209529 PMCID: PMC3511029 DOI: 10.3762/bjoc.8.220] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2012] [Accepted: 10/19/2012] [Indexed: 01/14/2023] Open
Abstract
A mild, efficient and versatile method has been developed for the construction of a functionalized natural product, meridianin, and its post conversion to pyrimido-β-carboline by cationic π- cyclization. The strategy involves the introduction of an amino group at the C-5 of the pyrimidine ring and utilizing the nucleophilictiy of the C-2 in the indole ring to facilitate cationic π-cyclization.
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Affiliation(s)
- Piyush Kumar Agarwal
- Division of Medicinal and Process Chemistry, Central Drug Research Institute, CSIR, Lucknow, 226001, India,
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35
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Application of chlorotrimethylsilane in Pictet–Spengler reaction. MONATSHEFTE FUR CHEMIE 2012. [DOI: 10.1007/s00706-012-0804-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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36
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Rashid N, Alam S, Hasan M, Khan N, Khan KM, Duddeck H, Pescitelli G, Kenéz Á, Antus S, Kurtán T. Cis
-Diastereoselectivity in Pictet-Spengler Reactions of L
-Tryptophan and Electronic Circular Dichroism Studies. Chirality 2012; 24:789-95. [DOI: 10.1002/chir.22070] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2012] [Revised: 04/04/2012] [Accepted: 04/17/2012] [Indexed: 11/06/2022]
Affiliation(s)
- Naghmana Rashid
- Allama Iqbal Open University; Department of Chemistry; Islamabad Pakistan
| | - Samina Alam
- Quaid-i-Azam University; Department of Chemistry; Islamabad Pakistan
| | - Mashooda Hasan
- Allama Iqbal Open University; Department of Chemistry; Islamabad Pakistan
- Quaid-i-Azam University; Department of Chemistry; Islamabad Pakistan
| | - Naeema Khan
- Quaid-i-Azam University; Department of Chemistry; Islamabad Pakistan
- Fatima Jinnah Women University; Rawalpindi Pakistan
| | - Khalid M. Khan
- H.E.J. Research Institute of Chemistry, International Center for Chemical Sciences; University of Karachi; Pakistan
| | - Helmut Duddeck
- Leibniz Universität Hannover; Institut für Organische Chemie; Hannover Germany
| | - Gennaro Pescitelli
- Università di Pisa; Dipartimento di Chimica e Chimica Industriale; Pisa Italy
| | - Ágnes Kenéz
- Department of Organic Chemistry; University of Debrecen; Debrecen Hungary
| | - Sándor Antus
- Department of Organic Chemistry; University of Debrecen; Debrecen Hungary
| | - Tibor Kurtán
- Department of Organic Chemistry; University of Debrecen; Debrecen Hungary
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37
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Preparation and antiprotozoal evaluation of promising β-carboline alkaloids. Biomed Pharmacother 2012; 66:339-47. [DOI: 10.1016/j.biopha.2011.12.006] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2011] [Accepted: 12/15/2011] [Indexed: 11/18/2022] Open
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38
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Gupta S, Kumar B, Kundu B. Three-Component Tandem Reaction Involving Acid Chlorides, Terminal Alkynes, and 2-Aminoindole Hydrochlorides: Synthesis of α-Carboline Derivatives in Aqueous Conditions via Regioselective [3 + 3] Cyclocondensation. J Org Chem 2011; 76:10154-62. [DOI: 10.1021/jo201994v] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Sahaj Gupta
- Medicinal & Process Chemistry Division and ‡Sophisticated and Analytical Instrument Facility, Central Drug Research Institute, CSIR, Lucknow 226001, India
| | - Brijesh Kumar
- Medicinal & Process Chemistry Division and ‡Sophisticated and Analytical Instrument Facility, Central Drug Research Institute, CSIR, Lucknow 226001, India
| | - Bijoy Kundu
- Medicinal & Process Chemistry Division and ‡Sophisticated and Analytical Instrument Facility, Central Drug Research Institute, CSIR, Lucknow 226001, India
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39
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Gupta S, Agarwal PK, Saifuddin M, Kundu B. Hydro-amination/-amidation of 1,3-diynes with indoles/azoles/amides under modified Ullmann conditions: stereo- and regio-selective synthesis of N-alkenynes via N–H bond activation. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.08.079] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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40
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Three-component tandem reaction involving acid chlorides, terminal alkynes, and ethyl 2-amino-1H-indole-3-carboxylates: synthesis of highly diversified pyrimido[1,2-a]indoles via sequential Sonogashira and [3+3] cyclocondensation reactions. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.06.021] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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41
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Sharma SK, Mandadapu AK, Kumar B, Kundu B. Synthesis of Iodo-Indoloazepinones in an Iodine-Mediated Three-Component Domino Reaction via a Regioselective 7-endo-dig Iodo-Cyclization PathwayCDRI Communication No. 8094. J Org Chem 2011; 76:6798-805. [DOI: 10.1021/jo201228t] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Sudhir K. Sharma
- Medicinal & Process Chemistry Division and ‡Sophisticated Analytical and Instrument Facility, Central Drug Research Institute, CSIR, Lucknow 226001, India
| | - Anil K. Mandadapu
- Medicinal & Process Chemistry Division and ‡Sophisticated Analytical and Instrument Facility, Central Drug Research Institute, CSIR, Lucknow 226001, India
| | - Brijesh Kumar
- Medicinal & Process Chemistry Division and ‡Sophisticated Analytical and Instrument Facility, Central Drug Research Institute, CSIR, Lucknow 226001, India
| | - Bijoy Kundu
- Medicinal & Process Chemistry Division and ‡Sophisticated Analytical and Instrument Facility, Central Drug Research Institute, CSIR, Lucknow 226001, India
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42
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Three component tandem reactions involving protected 2-amino indoles, disubstituted propargyl alcohols, and I2/ICl: iodo-reactant controlled synthesis of dihydro-α-carbolines and α-carbolines via iodo-cyclization/iodo-cycloelimination. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2010.10.147] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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43
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Barbero M, Bazzi S, Cadamuro S, Dughera S. o-Benzenedisulfonimide as a reusable acid catalyst for an easy, efficient, and green synthesis of tetrahydroisoquinolines and tetrahydro-β-carbolines through Pictet–Spengler reaction. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.09.149] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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44
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Chauhan SS, Gupta L, Mittal M, Vishwakarma P, Gupta S, Chauhan PM. Synthesis and biological evaluation of indolyl glyoxylamides as a new class of antileishmanial agents. Bioorg Med Chem Lett 2010; 20:6191-4. [DOI: 10.1016/j.bmcl.2010.08.119] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2010] [Revised: 08/23/2010] [Accepted: 08/24/2010] [Indexed: 01/10/2023]
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45
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Sharma SK, Mandadapu AK, Saifuddin M, Gupta S, Agarwal PK, Mandwal AK, Gauniyal HM, Kundu B. Three-component reaction involving metal-free heteroannulation of N-Boc-3-amido indole, aryl aldehydes, and aromatic alkynes under microwave conditions: synthesis of highly diversified δ-carbolines. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.09.054] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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46
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Brahmbhatt KG, Ahmed N, Sabde S, Mitra D, Singh IP, Bhutani KK. Synthesis and evaluation of β-carboline derivatives as inhibitors of human immunodeficiency virus. Bioorg Med Chem Lett 2010; 20:4416-9. [DOI: 10.1016/j.bmcl.2010.06.052] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2010] [Revised: 06/08/2010] [Accepted: 06/09/2010] [Indexed: 10/19/2022]
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47
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Saifuddin M, Agarwal PK, Sharma SK, Mandadapu AK, Gupta S, Harit VK, Kundu B. Water-Accelerated Cationic π-(7-endo) Cyclisation: Application to Indole-Based Peri-Annulated Polyheterocycles. European J Org Chem 2010. [DOI: 10.1002/ejoc.201000596] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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48
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Wang Y, Song Z, Chen C, Peng J. Pictet-Spengler condensation reactions catalyzed by a recyclable H+-montmorillonite as a heterogeneous Brønsted acid. Sci China Chem 2010. [DOI: 10.1007/s11426-010-0073-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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49
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Vinu A, Kalita P, Samie L, Chari MA, Pal R, Reddy BS. Novel synthesis of tetrahydro-β-carbolines and tetrahydroisoquinolines via three-component reaction using hexagonally ordered mesoporous AlSBA-15 catalysts. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2009.11.111] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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50
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Bandini M, Eichholzer A. Catalytic Functionalization of Indoles in a New Dimension. Angew Chem Int Ed Engl 2009; 48:9608-44. [DOI: 10.1002/anie.200901843] [Citation(s) in RCA: 1147] [Impact Index Per Article: 76.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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