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Shukla S, Nishanth Rao R, Bhuktar H, Edwin RK, Jamma T, Medishetti R, Banerjee S, Giliyaru VB, Shenoy GG, Oruganti S, Misra P, Pal M. Wang resin catalysed sonochemical synthesis of pyrazolo[4,3-d]pyrimidinones and 2,3-dihydroquinazolin-4(1H)-ones: Identification of chorismate mutase inhibitors having effects on Mycobacterium tuberculosis cell viability. Bioorg Chem 2023; 134:106452. [PMID: 36889201 DOI: 10.1016/j.bioorg.2023.106452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 02/15/2023] [Accepted: 02/26/2023] [Indexed: 03/06/2023]
Abstract
The enzyme chorismate mutase (or CM that is vital for the survival of bacteria) is an interesting pharmacological target for the identification of new anti-tubercular agents. The 5,5-disibstituted pyrazolo[4,3-d]pyrimidinone derivatives containing the fragment based on 4-amino-1-methyl-3-propyl-1H-pyrazole-5-carboxamide were designed and explored as the potential inhibitors of chorismate mutase. Based on encouraging docking results of two representative molecules evaluated in silico against MtbCM (PDB: 2FP2) the Wang resin catalysed sonochemical synthesis of target N-heteroarenes were undertaken. The methodology involved the reaction of 4-amino-1-methyl-3-propyl-1H-pyrazole-5-carboxamide with the appropriate cyclic/acyclic ketones to afford the desired products in acceptable (51-94%) yields. The methodology was also extended successfully towards the synthesis of 2,2-disubstituted 2,3-dihydroquinazolin-4(1H)-ones in excellent (85-90%) yields. In vitro MTT assay against the RAW 264.7 cell line followed by enzymatic assay against MtbCM identified 3b and 3c as active compounds that showed two H-bonding via their NH (at position 6) and CO group with MtbCM in silico and encouraging (54-57%) inhibition at 30 µM in vitro. Notably, none of the 2,2-disubstituted 2,3-dihydroquinazolin-4(1H)-ones showed any significant inhibition of MtbCM suggesting the favourable role of the pyrazole moiety in case of pyrazolo[4,3-d]pyrimidinones. The favourable role of cyclopentyl ring attached to the pyrazolo[4,3-d]pyrimidinone moiety and that of two methyl groups in place of cyclopentyl ring was also indicated by the SAR study. Besides showing effects against MtbCM in the concentration response study, 3b and 3c showed little or no effects on mammalian cell viability up to 100 µM in an MTT assay but decreased the % Mtb cell viability at 10-30 µM with > 20% decrease at 30 µM in an Alamar Blue Assay. Moreover, no adverse effects were noted for these compounds when tested for teratogenicity and hepatotoxicity in zebrafish at various concentrations. Overall, being the only example of MtbCM inhibitors that showed effects on Mtb cell viability the compound 3b and 3c are of further interest form the view point of discovery and development of new anti-tubercular agents.
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Affiliation(s)
- Sharda Shukla
- Dr. Reddy's Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad 500046, India; Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Madhav Nagar, Manipal 576 104, Karnataka, India
| | - R Nishanth Rao
- Dr. Reddy's Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad 500046, India
| | - Harshavardhan Bhuktar
- Dr. Reddy's Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad 500046, India; Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Madhav Nagar, Manipal 576 104, Karnataka, India
| | - Rebecca Kristina Edwin
- Dr. Reddy's Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad 500046, India; Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Madhav Nagar, Manipal 576 104, Karnataka, India
| | - Trinath Jamma
- Department of Biological Sciences, B-225, BITS Pilani-Hyderabad Campus, Jawahar Nagar, Shameerpet Mandal, Hyderabad 500 078, Telangana, India
| | - Raghavender Medishetti
- Dr. Reddy's Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad 500046, India; Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Madhav Nagar, Manipal 576 104, Karnataka, India
| | - Sharmistha Banerjee
- Department of Biochemistry, School of Life Sciences, University of Hyderabad, Gachibowli, Hyderabad 500046, India
| | - Varadaraj Bhat Giliyaru
- Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Madhav Nagar, Manipal 576 104, Karnataka, India
| | - Gautham G Shenoy
- Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Madhav Nagar, Manipal 576 104, Karnataka, India
| | - Srinivas Oruganti
- Dr. Reddy's Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad 500046, India; Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Madhav Nagar, Manipal 576 104, Karnataka, India
| | - Parimal Misra
- Dr. Reddy's Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad 500046, India; Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Madhav Nagar, Manipal 576 104, Karnataka, India
| | - Manojit Pal
- Dr. Reddy's Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad 500046, India; Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Madhav Nagar, Manipal 576 104, Karnataka, India.
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Madivalappa Davanagere P, Maiti B. 1,3-Bis(carboxymethyl)imidazolium Chloride as a Sustainable, Recyclable, and Metal-Free Ionic Catalyst for the Biginelli Multicomponent Reaction in Neat Condition. ACS OMEGA 2021; 6:26035-26047. [PMID: 34660965 PMCID: PMC8515400 DOI: 10.1021/acsomega.1c02976] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 09/21/2021] [Indexed: 05/06/2023]
Abstract
A simple and novel methodology has been developed for the synthesis of 1,3-bis(carboxymethyl)imidazolium chloride [BCMIM][Cl] salt. The ionic salt [BCMIM][Cl] catalyzed the reaction among arylaldehydes; the substituted 1,3-dicarbonyl compounds and urea/thiourea at 80 °C with 5 mol % under neat condition provided the substituted dihydropyrimidin-2(1H)-one/thiones in the synthesis step with yields of up to 96%. In addition, we synthesized the commercially available drug Monastrol by employing this methodology. The new synthesis method employs the benefits of a broad substrate scope, short reaction time, and high atom economy along with low catalyst loading in neat conditions, and is devoid of chromatographic purification. The ionic salt [BCMIM][Cl] was recycled and reused up to six cycles without substantial damage of its catalytic efficiency.
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Affiliation(s)
| | - Barnali Maiti
- Department of Chemistry,
School of Advanced Sciences, Vellore Institute
of Technology, Vellore 632014, India
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Xie Z, Lan J, Yan L, Chen X, Li Q, Meng J, Le Z. Photocatalyst-free visible-light-promoted quinazolinone synthesis at room temperature utilizing aldehydes generated in situ via C[double bond, length as m-dash]C bond cleavage. Org Biomol Chem 2021; 19:2436-2441. [PMID: 33406170 DOI: 10.1039/d0ob02268c] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This is the first report on a facile tandem route for synthesizing quinazolinones at room temperature from various aminobenzamides and in situ-generated aldehydes. The latter was formed via C[double bond, length as m-dash]C bond cleavage, and the overall reaction proceeded using molecular oxygen as a clean oxidant in the absence of a photocatalyst. Visible light, which was indispensable for the entire course of the reaction, played multiple roles. It initially cleaved styrene to an aldehyde, then facilitated its cyclization with an o-substituted aniline, and finally promoted the dehydrogenation of the cyclized intermediate. The previous step provided the feedstock for the next step in the reaction, thereby preventing volatilization, oxidation, and polymerization of the aldehyde. Thus, the overall process is simple, environmentally benign, and economically feasible.
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Affiliation(s)
- Zongbo Xie
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang 330013, China.
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Sinha AK, Singh R, Kumar R. Towards an Understanding of the “
Ambiphilic
” Character of Ionic Liquids for Green Synthesis of Chemically Diverse Architectures. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000065] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Arun K. Sinha
- Medicinal and ProcessChemistry DivisionCSIR-Central Drug Research Institute Sector 10, Jankipuram Extension Sitapur Road Lucknow 226031 India
- Academy of Scientific and Innovative Research New Delhi 110001 India
| | - Richa Singh
- Medicinal and ProcessChemistry DivisionCSIR-Central Drug Research Institute Sector 10, Jankipuram Extension Sitapur Road Lucknow 226031 India
- Current Address: Department of ChemistryGaya College Gaya 823001 India
| | - Rajesh Kumar
- Institute of Himalayan Bioresource Technology (CSIR) Palampur 176061 India
- Current Address: State Key Laboratory of Structural Chemistry Fuzhou China- 350002
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Nguyen LHT, Nguyen TTT, Dang YT, Tran PH, Le Hoang Doan T. Microwave‐Assisted Synthesis as an Efficient Method to Enhance the Catalytic Activity of Zr‐Based Metal Organic Framework UiO‐66 in a Heterocyclization Reaction. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900556] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Linh Ho Thuy Nguyen
- Center for Innovative Materials and Architectures (INOMAR)Vietnam National University Ho Chi Minh City (VNU-HCM) Ho Chi Minh City 721337 Vietnam
- Department of Organic Chemistry, Faculty of Chemistry University of ScienceVietnam National University-Ho Chi Minh City Ho Chi Minh City 721337 Vietnam
| | - Trang Thi Thu Nguyen
- Center for Innovative Materials and Architectures (INOMAR)Vietnam National University Ho Chi Minh City (VNU-HCM) Ho Chi Minh City 721337 Vietnam
- Department of Organic Chemistry, Faculty of Chemistry University of ScienceVietnam National University-Ho Chi Minh City Ho Chi Minh City 721337 Vietnam
| | - Y. Thi Dang
- Center for Innovative Materials and Architectures (INOMAR)Vietnam National University Ho Chi Minh City (VNU-HCM) Ho Chi Minh City 721337 Vietnam
| | - Phuong Hoang Tran
- Department of Organic Chemistry, Faculty of Chemistry University of ScienceVietnam National University-Ho Chi Minh City Ho Chi Minh City 721337 Vietnam
| | - Tan Le Hoang Doan
- Center for Innovative Materials and Architectures (INOMAR)Vietnam National University Ho Chi Minh City (VNU-HCM) Ho Chi Minh City 721337 Vietnam
- Department of Organic Chemistry, Faculty of Chemistry University of ScienceVietnam National University-Ho Chi Minh City Ho Chi Minh City 721337 Vietnam
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Equbal D, Singh R, Saima, Lavekar AG, Sinha AK. Synergistic Dual Role of [hmim]Br-ArSO2Cl in Cascade Sulfenylation–Halogenation of Indole: Mechanistic Insight into Regioselective C–S and C–S/C–X (X = Cl and Br) Bond Formation in One Pot. J Org Chem 2019; 84:2660-2675. [DOI: 10.1021/acs.joc.8b03097] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Danish Equbal
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031 India
| | - Richa Singh
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031 India
| | - Saima
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031 India
- Academy of Scientific and Innovative Research (AcSIR), New Delhi 110001 India
| | - Aditya G. Lavekar
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031 India
- Academy of Scientific and Innovative Research (AcSIR), New Delhi 110001 India
| | - Arun K. Sinha
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031 India
- Academy of Scientific and Innovative Research (AcSIR), New Delhi 110001 India
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Singsardar M, Sarkar R, Majhi K, Sinha S, Hajra A. Brønsted Acidic Ionic Liquid-Catalyzed Regioselective Synthesis of Pyrazolopyrimidines and Their Photophysical Properties. ChemistrySelect 2018. [DOI: 10.1002/slct.201702767] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Mukta Singsardar
- Department of Chemistry; Visva-Bharati (A Central University); Santiniketan 731235, West Bengal India
| | - Rajib Sarkar
- Department of Chemistry; Visva-Bharati (A Central University); Santiniketan 731235, West Bengal India
| | - Koushik Majhi
- Integrated Science Education and Research Centre; Siksha Bhavana; Visva-Bharati; Santiniketan 731 235 India
| | - Subrata Sinha
- Integrated Science Education and Research Centre; Siksha Bhavana; Visva-Bharati; Santiniketan 731 235 India
| | - Alakananda Hajra
- Department of Chemistry; Visva-Bharati (A Central University); Santiniketan 731235, West Bengal India
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