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Zahoor AF, Saeed S, Rasul A, Noreen R, Irfan A, Ahmad S, Faisal S, Al-Hussain SA, Saeed MA, Muhammed MT, Muhammad ZA, Zaki MEA. Synthesis, Cytotoxic, and Computational Screening of Some Novel Indole-1,2,4-Triazole-Based S-Alkylated N-Aryl Acetamides. Biomedicines 2023; 11:3078. [PMID: 38002078 PMCID: PMC10669176 DOI: 10.3390/biomedicines11113078] [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: 10/12/2023] [Revised: 11/01/2023] [Accepted: 11/02/2023] [Indexed: 11/26/2023] Open
Abstract
Molecular hybridization has emerged as the prime and most significant approach for the development of novel anticancer chemotherapeutic agents for combating cancer. In this pursuit, a novel series of indole-1,2,4-triazol-based N-phenyl acetamide structural motifs 8a-f were synthesized and screened against the in vitro hepatocellular cancer Hep-G2 cell line. The MTT assay was applied to determine the anti-proliferative potential of novel indole-triazole compounds 8a-f, which displayed cytotoxicity potential as cell viabilities at 100 µg/mL concentration, by using ellipticine and doxorubicin as standard reference drugs. The remarkable prominent bioactive structural hybrids 8a, 8c, and 8f demonstrated good-to-excellent anti-Hep-G2 cancer chemotherapeutic potential, with a cell viability of (11.72 ± 0.53), (18.92 ± 1.48), and (12.93 ± 0.55), respectively. The excellent cytotoxicity efficacy against the liver cancer cell line Hep-G2 was displayed by the 3,4-dichloro moiety containing indole-triazole scaffold 8b, which had the lowest cell viability (10.99 ± 0.59) compared with the standard drug ellipticine (cell viability = 11.5 ± 0.55) but displayed comparable potency in comparison with the standard drug doxorubicin (cell viability = 10.8 ± 0.41). The structure-activity relationship (SAR) of indole-triazoles 8a-f revealed that the 3,4-dichlorophenyl-based indole-triazole structural hybrid 8b displayed excellent anti-Hep-G2 cancer chemotherapeutic efficacy. The in silico approaches such as molecular docking scores, molecular dynamic simulation stability data, DFT, ADMET studies, and in vitro pharmacological profile clearly indicated that indole-triazole scaffold 8b could be the lead anti-Hep-G2 liver cancer therapeutic agent and a promising anti-Hep-G2 drug candidate for further clinical evaluations.
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Affiliation(s)
- Ameer Fawad Zahoor
- Department of Chemistry, Government College University Faisalabad, Faisalabad 38000, Pakistan; (A.F.Z.); (A.I.)
| | - Sadaf Saeed
- Department of Chemistry, Government College University Faisalabad, Faisalabad 38000, Pakistan; (A.F.Z.); (A.I.)
| | - Azhar Rasul
- Department of Zoology, Government College University Faisalabad, Faisalabad 38000, Pakistan
| | - Razia Noreen
- Department of Biochemistry, Government College University Faisalabad, Faisalabad 38000, Pakistan
| | - Ali Irfan
- Department of Chemistry, Government College University Faisalabad, Faisalabad 38000, Pakistan; (A.F.Z.); (A.I.)
| | - Sajjad Ahmad
- Department of Health and Biological Sciences, Abasyn University, Peshawar 25000, Pakistan
- Gilbert and Rose-Marie Chagoury School of Medicine, Lebanese American University, Beirut P.O. Box 36, Lebanon
- Department of Natural Sciences, Lebanese American University, Beirut P.O. Box 36, Lebanon
| | - Shah Faisal
- Department of Chemistry, Islamia College University Peshawar, Peshawar 25120, Pakistan
| | - Sami A. Al-Hussain
- Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia
| | - Muhammad Athar Saeed
- Department of Chemistry, Government College University Faisalabad, Faisalabad 38000, Pakistan; (A.F.Z.); (A.I.)
| | - Muhammed Tilahun Muhammed
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Suleyman Demirel University, Isparta 32000, Türkiye
| | - Zeinab A. Muhammad
- Department of Pharmaceutical Chemistry, National Organization for Drug Control and Research (NODCAR), Giza 12311, Egypt
| | - Magdi E. A. Zaki
- Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia
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Chen WC, Bai R, Cheng WL, Peng CY, Reddy DM, Badsara SS, Lee CF. Base-mediated chalcogenoaminative annulation of 2-alkynylanilines for direct access to 3-sulfenyl/selenyl-1 H-indoles. Org Biomol Chem 2023; 21:3002-3013. [PMID: 36942565 DOI: 10.1039/d3ob00279a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
Abstract
An efficient and transition metal-free synthesis of 3-sulfenyl/selenyl-1H-indoles via a base-assisted chalcogenoaminative annulation of 2-alkynyl aniline with disulfides/diselenides is described. A series of 2-alkynylanilines were found compatible with dichalcogenides in this transformation providing 3-sulfenyl/selenyl-1H-indoles in good to excellent yields. The presented methodology has the advantages of easily available raw materials, functional group tolerance, and a wide range of substrates that provide access to 3-sulfenylindoles and 3-selenylindoles.
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Affiliation(s)
- Wei-Ching Chen
- Department of Chemistry, National Chung Hsing University, Taichung, Taiwan 402, Republic of China.
| | - Rekha Bai
- Department of Chemistry, National Chung Hsing University, Taichung, Taiwan 402, Republic of China.
| | - Wan-Lin Cheng
- Department of Chemistry, National Chung Hsing University, Taichung, Taiwan 402, Republic of China.
| | - Chun-Yu Peng
- Department of Chemistry, National Chung Hsing University, Taichung, Taiwan 402, Republic of China.
| | | | - Satpal Singh Badsara
- MFOS Laboratory, Department of Chemistry, University of Rajasthan, Jaipur, Rajasthan 302004, India
| | - Chin-Fa Lee
- Department of Chemistry, National Chung Hsing University, Taichung, Taiwan 402, Republic of China.
- i-Center for Advanced Science and Technology (iCAST), National Chung Hsing University, Taichung City 402, Taiwan, Republic of China
- Innovation and Development Center of Sustainable Agriculture (IDCSA), National Chung Hsing University, Taichung City 402, Taiwan, Republic of China
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3
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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: 4] [Impact Index Per Article: 4.0] [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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4
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Addu N, Miriyala H, Kapavarapu R, Kolli SK, Pal M. Wang-OSO3H catalyzed one-pot sonochemical synthesis of 1,2,4-benzothiadiazine-1,1-dioxide derivatives: their in silico / in vitro assessments against MtbCM. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
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Sangepu VR, Jain KK, Bhoomireddy RD, Sharma D, Venkateshwarlu R, Kapavarapu R, Dandela R, Pal M. One-pot sonochemical synthesis and in silico / in vitro antitubercular evaluation of 1-methyl-3-propyl-1H-pyrazole containing polynuclear fused N-heteroarenes. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.134909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Bajad NG, Singh SK, Singh SK, Singh TD, Singh M. Indole: A promising scaffold for the discovery and development of potential anti-tubercular agents. CURRENT RESEARCH IN PHARMACOLOGY AND DRUG DISCOVERY 2022; 3:100119. [PMID: 35992375 PMCID: PMC9389259 DOI: 10.1016/j.crphar.2022.100119] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 04/13/2022] [Accepted: 07/05/2022] [Indexed: 11/08/2022] Open
Abstract
Indole-containing small molecules have been reported to have diverse pharmacological activities. The aromatic heterocyclic scaffold, which resembles various protein structures, has received attention from organic and medicinal chemists. Exploration of indole derivatives in drug discovery has rapidly yielded a vast array of biologically active compounds with broad therapeutic potential. Nature is the major source of indole scaffolds, but various classical and advanced synthesis methods for indoles have also been reported. One-pot synthesis is widely considered an efficient approach in synthetic organic chemistry and has been used to synthesize some indole compounds. The rapid emergence of drug-resistant tuberculosis is a major challenge to be addressed. Identifying novel targets and drug candidates for tuberculosis is therefore crucial. Researchers have extensively explored indole derivatives as potential anti-tubercular agents or drugs. Indole scaffolds containing the novel non-covalent (decaprenylphosphoryl-β-D-ribose2'-epimerase) DprE1 inhibitor 1,4-azaindole is currently in clinical trials to treat Mycobacterium tuberculosis. In addition, DG167 indazole sulfonamide with potent anti-tubercular activity is undergoing early-stage development in preclinical studies. Indole bearing cationic amphiphiles with high chemical diversity have been reported to depolarize and disrupt the mycobacterial membrane. Some indole-based compounds have potential inhibitory activities against distinct anti-tubercular targets, including the inhibition of cell wall synthesis, replication, transcription, and translation, as summarized in the graphical abstract. The success of computer-aided drug design in the fields of cancer and anti-viral drugs has accelerated in silico studies in antibacterial drug development. This review describes the sources of indole scaffolds, the potential for novel indole derivatives to serve as anti-tubercular agents, in silico findings, and proposed actions to facilitate the design of novel compounds with anti-tubercular activity.
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Affiliation(s)
- Nilesh Gajanan Bajad
- Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi, 221005, India
| | - Sudhir Kumar Singh
- Department of Microbiology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221005, India
| | - Sushil Kumar Singh
- Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi, 221005, India
| | - Tryambak Deo Singh
- Department of Medicinal Chemistry, Faculty of Ayurveda, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221005, India
| | - Meenakshi Singh
- Department of Medicinal Chemistry, Faculty of Ayurveda, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221005, India
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7
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Das A. LED Light Sources in Organic Synthesis: An Entry to a Novel Approach. LETT ORG CHEM 2022. [DOI: 10.2174/1570178618666210916164132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
:
In recent years, photocatalytic technology has shown great potential as a low-cost, environmentally
friendly, and sustainable technology. Compared to other light sources in photochemical reaction,
LEDs have advantages in terms of efficiency, power, compatibility, and environmentally friendly
nature. This review highlights the most recent advances in LED-induced photochemical reactions. The
effect of white and blue LEDs in reactions such as oxidation, reduction, cycloaddition, isomerization,
and sensitization is discussed in detail. No other reviews have been published on the importance of
white and blue LED sources in the photocatalysis of organic compounds. Considering all the facts, this
review is highly significant and timely.
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Affiliation(s)
- Aparna Das
- Department of Mathematics and Natural Sciences, College of Sciences and Human Studies, Prince Mohammad Bin
Fahd University, Al Khobar, Kingdom of Saudi Arabia
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8
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Reddy GS, Shukla S, Bhuktar H, Hossain KA, Edwin RK, Giliyaru VB, Misra P, Pal M. Pd/Cu-catalyzed access to novel 3-(benzofuran-2-ylmethyl) substituted (pyrazolo/benzo)triazinone derivatives: their in silico/ in vitro evaluation as inhibitors of chorismate mutase (CM). RSC Adv 2022; 12:26686-26695. [PMID: 36275143 PMCID: PMC9490447 DOI: 10.1039/d2ra05255e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 09/12/2022] [Indexed: 11/21/2022] Open
Abstract
In view of the reported chorismate mutase (CM or MtbCM) inhibitory activities of 3-indolylmethyl substituted (pyrazolo/benzo)triazinone derivatives the structurally similar 3-(benzofuran-2-ylmethyl) substituted (pyrazolo/benzo)triazinones were designed and evaluated in silico against CM. The docking of target molecules was performed at the interface site of MtbCM (PDB: 2FP2). All the best ranked molecules participated in a strong H-bonding with the ILE67 of the B chain at the backbone position in addition to several hydrophobic/van der Waals interactions with the hydrophobic residues. Based on encouraging docking results, the one-pot synthesis of newly designed benzofuran derivatives was carried out using tandem Pd/Cu-catalyzed Sonogashira cross-coupling followed by intramolecular cyclization of 2-iodophenols with appropriate terminal alkynes. A range of novel 3-(benzofuran-2-ylmethyl) substituted (pyrazolo/benzo)triazinone derivatives were prepared in high (>80%) yields. Three molecules i.e.3h, 3i and 3m that participated in good interaction with CM in silico showed encouraging (64–65%) inhibition at 30 μM in vitro. An SAR within this class of molecules suggested that the benzotriazinone series in general was better than the pyrazolotriazinone series. Based on molecular docking in silico, CM inhibition in vitro and computational ADME prediction the benzofuran derivatives 3i and 3m seemed to be of further medicinal interest in the context of discovery and development of new anti-tubercular agents. We report the Pd/Cu-catalyzed synthesis, in silico molecular docking, in vitro CM inhibition and computational ADME prediction of novel 3-(benzofuran-2-ylmethyl) substituted (pyrazolo/benzo)triazinone derivatives.![]()
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Affiliation(s)
- Gangireddy Sujeevan Reddy
- Dr. Reddy's Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad 500 046, India
- Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Madhav Nagar, Manipal 576 104, Karnataka, India
| | - Sharda Shukla
- Dr. Reddy's Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad 500 046, India
- Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Madhav Nagar, Manipal 576 104, Karnataka, India
| | - Harshavardhan Bhuktar
- Dr. Reddy's Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad 500 046, India
- Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Madhav Nagar, Manipal 576 104, Karnataka, India
| | - Kazi Amirul Hossain
- Dr. Reddy's Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad 500 046, India
| | - Rebecca Kristina Edwin
- Dr. Reddy's Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad 500 046, India
| | - Varadaraj Bhat Giliyaru
- 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 500 046, India
| | - Manojit Pal
- Dr. Reddy's Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad 500 046, India
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Sujeevan Reddy G, Sandeep Kumar J, Thirupataiah B, Amirul Hossain K, Babu Nallapati S, Bhat Giliyaru V, Chandrashekhar Hariharapura R, Gautham Shenoy G, Pal M. Propargylamines in Pd/Cu-catalyzed tandem coupling-cyclization-N-deprotection in a single pot: Construction of N-unsubstituted vs N-sulfonyl indole ring. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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10
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Venkateshwarlu R, Nath Singh S, Siddaiah V, Ramamohan H, Dandela R, Amirul Hossain K, Vijaya Babu P, Pal M. Ultrasound assisted rapid synthesis of mefenamic acid based indole derivatives under ligand free Cu-catalysis: Their pharmacological evaluation. Bioorg Med Chem Lett 2020; 30:127112. [PMID: 32209292 DOI: 10.1016/j.bmcl.2020.127112] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Revised: 03/13/2020] [Accepted: 03/13/2020] [Indexed: 10/24/2022]
Abstract
An improved and rapid synthesis of mefenamic acid based indole derivatives has been achieved via the ligand free Cu-catalyzed coupling-cyclization method under ultrasound irradiation. This simple, straightforward and inexpensive one-pot method involved the reaction of a terminal alkyne derived from mefenamic acid with 2-iodosulfanilides in the presence of CuI and K2CO3 in PEG-400. The reaction proceeded via an initial CC bond formation (the coupling step) followed by CN bond formation (the intramolecular cyclization) to afford the mefenamic acid based indole derivatives in good to acceptable yields. Several of these compounds showed inhibition of PDE4 in vitro and the SAR (Structure Activity Relationship) within the series is discussed. The compound 3d has been identified as a promising and selective inhibitor of PDE4B (IC50 = 1.34 ± 0.46 µM) that showed TNF-α inhibition in vitro (IC50 = 5.81 ± 0.24 µM) and acceptable stability in the rat liver microsomes.
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Affiliation(s)
- Rapolu Venkateshwarlu
- Custom Pharmaceutical Services and Dr. Reddy's Laboratories Ltd., Bollaram Road, Miyapur, Hyderabad 500049, India; Department of Organic Chemistry & FDW, Andhra University, Visakhapatnam 530003, Andhra Pradesh, India
| | - Shambhu Nath Singh
- Custom Pharmaceutical Services and Dr. Reddy's Laboratories Ltd., Bollaram Road, Miyapur, Hyderabad 500049, India
| | - Vidavalur Siddaiah
- Department of Organic Chemistry & FDW, Andhra University, Visakhapatnam 530003, Andhra Pradesh, India
| | - Hindupur Ramamohan
- Custom Pharmaceutical Services and Dr. Reddy's Laboratories Ltd., Bollaram Road, Miyapur, Hyderabad 500049, India
| | - Rambabu Dandela
- Department of Industrial and Engineering Chemistry, Institute of Chemical Technology, Indianoil Odisha Campus, Samantpuri, Bhubaneswar 751013, India.
| | - Kazi Amirul Hossain
- Dr. Reddy's Institute of Life Sciences, University of Hyderabad Campus, Hyderabad 500046, India
| | - P Vijaya Babu
- Dr. Reddy's Institute of Life Sciences, University of Hyderabad Campus, Hyderabad 500046, India
| | - Manojit Pal
- Dr. Reddy's Institute of Life Sciences, University of Hyderabad Campus, Hyderabad 500046, India.
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11
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Mefenamic acid based novel indole analogues: Their synthesis and anti-proliferative effects. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2015.05.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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12
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Bhavani S, Ashfaq MA, Rambabu D, Basaveswara Rao M, Pal M. Ultrasound assisted Mizoroki–Heck reaction catalyzed by Pd/C: Synthesis of 3-vinyl indoles as potential cytotoxic agents. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2016.02.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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13
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A greener approach toward N− 1 heteroarylation of indoles: Synthesis and in vitro evaluation of potential anti-proliferative agents. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2015.11.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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14
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Suresh N, Prasanna GL, Ratnakar A, Rao MVB, Pal M. An ultrasound-based approach for the synthesis of indoles under Pd/C catalysis. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2017.01.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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15
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Rao P, Hussain I, Rao V, Sen S, Oruganti S. A concise synthesis of isoxazole-based side chain of Micafungin. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1615509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Pallavi Rao
- Dr. Reddy’s Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad, Telangana, India
| | - Ismail Hussain
- Dr. Reddy’s Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad, Telangana, India
| | - Venkataramanarao Rao
- Dr. Reddy’s Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad, Telangana, India
| | - Saikat Sen
- Dr. Reddy’s Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad, Telangana, India
| | - Srinivas Oruganti
- Dr. Reddy’s Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad, Telangana, India
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Reddy GS, Snehalatha AV, Edwin RK, Hossain KA, Giliyaru VB, Hariharapura RC, Gautham Shenoy G, Misra P, Pal M. Synthesis of 3-indolylmethyl substituted (pyrazolo/benzo)triazinone derivatives under Pd/Cu-catalysis: Identification of potent inhibitors of chorismate mutase (CM). Bioorg Chem 2019; 91:103155. [PMID: 31400552 DOI: 10.1016/j.bioorg.2019.103155] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 07/04/2019] [Accepted: 07/24/2019] [Indexed: 11/17/2022]
Abstract
The chorismate mutase (CM) is considered as an attractive target for the identification of potential antitubercular agents due to its absence in animals but not in bacteria. A series of 3-indolylmethyl substituted pyrazolotriazinone derivatives were designed and docked into CM in silico as potential inhibitors. These compounds were efficiently synthesized using the Pd/Cu-catalyzed coupling-cyclization in a single pot involving the construction of indole ring. The methodology was later extended to the preparation of corresponding benzo analogs of pyrazolotriazinones i.e. 3-indolylmethyl substituted benzotriazinone derivatives. Several of these novel compounds showed significant inhibition of CM when tested in vitro at 30 µM. The SAR (Structure-Activity-Relationship) studies suggested that benzotriazinone moiety was more favorable over the pyrazolotriazinone ring. The two best active compounds showed IC50 ∼ 0.4-0.9 µM (better than the reference/known compounds used) and no toxicity till 30 µM in vitro.
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Affiliation(s)
- Gangireddy Sujeevan Reddy
- Dr Reddy's Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad 500 046, India; Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Madhav Nagar, Manipal 576 104, Karnataka, India
| | - Ampalam Venkata Snehalatha
- Dr Reddy's Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad 500 046, India
| | - Rebecca Kristina Edwin
- Dr Reddy's Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad 500 046, India
| | - Kazi Amirul Hossain
- Dr Reddy's Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad 500 046, India
| | - Varadaraj Bhat Giliyaru
- Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Madhav Nagar, Manipal 576 104, Karnataka, India
| | | | - G Gautham Shenoy
- 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 500 046, India
| | - Manojit Pal
- Dr Reddy's Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad 500 046, India.
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17
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Zhao C, Rakesh KP, Ravidar L, Fang WY, Qin HL. Pharmaceutical and medicinal significance of sulfur (S VI)-Containing motifs for drug discovery: A critical review. Eur J Med Chem 2019; 162:679-734. [PMID: 30496988 PMCID: PMC7111228 DOI: 10.1016/j.ejmech.2018.11.017] [Citation(s) in RCA: 292] [Impact Index Per Article: 58.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 10/17/2018] [Accepted: 11/07/2018] [Indexed: 01/04/2023]
Abstract
Sulfur (SVI) based moieties, especially, the sulfonyl or sulfonamide based analogues have showed a variety of pharmacological properties, and its derivatives propose a high degree of structural diversity that has established useful for the finding of new therapeutic agents. The developments of new less toxic, low cost and highly active sulfonamides containing analogues are hot research topics in medicinal chemistry. Currently, more than 150 FDA approved Sulfur (SVI)-based drugs are available in the market, and they are widely used to treat various types of diseases with therapeutic power. This comprehensive review highlights the recent developments of sulfonyl or sulfonamides based compounds in huge range of therapeutic applications such as antimicrobial, anti-inflammatory, antiviral, anticonvulsant, antitubercular, antidiabetic, antileishmanial, carbonic anhydrase, antimalarial, anticancer and other medicinal agents. We believe that, this review article is useful to inspire new ideas for structural design and developments of less toxic and powerful Sulfur (SVI) based drugs against the numerous death-causing diseases.
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Affiliation(s)
- Chuang Zhao
- Department of Pharmaceutical Engineering, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 205 Luoshi Road, Wuhan, 430070, PR, China
| | - K P Rakesh
- Department of Pharmaceutical Engineering, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 205 Luoshi Road, Wuhan, 430070, PR, China.
| | - L Ravidar
- Department of Pharmaceutical Engineering, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 205 Luoshi Road, Wuhan, 430070, PR, China
| | - Wan-Yin Fang
- Department of Pharmaceutical Engineering, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 205 Luoshi Road, Wuhan, 430070, PR, China
| | - Hua-Li Qin
- Department of Pharmaceutical Engineering, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 205 Luoshi Road, Wuhan, 430070, PR, China.
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18
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Sujeevan Reddy G, Babu Nallapati S, Sri Saranya P, Sridhar B, Bhat Giliyaru V, Chandrashekhar Hariharapura R, Gautham Shenoy G, Pal M. Propargylamine (secondary) as a building block in indole synthesis involving ultrasound assisted Pd/Cu-catalyzed coupling-cyclization method: Unexpected formation of (pyrazole)imine derivatives. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.11.037] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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19
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Baydar E, Gündüz MG, Krishna VS, Şimşek R, Sriram D, Yıldırım SÖ, Butcher RJ, Şafak C. Synthesis, crystal structure and antimycobacterial activities of 4-indolyl-1,4-dihydropyridine derivatives possessing various ester groups. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-017-3087-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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20
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Mycobacterium tuberculosis chorismate mutase: A potential target for TB. Bioorg Med Chem 2017; 25:1725-1736. [PMID: 28202315 DOI: 10.1016/j.bmc.2017.02.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Accepted: 02/01/2017] [Indexed: 12/27/2022]
Abstract
Mycobacterium tuberculosis chorismate mutase (MtbCM) catalyzes the rearrangement of chorismate to prephenate in the shikimate biosynthetic pathway to form the essential amino acids, phenylalanine and tyrosine. Two genes encoding chorismate mutase have been identified in Mtb. The secretory form,∗MtbCM (encoded by Rv1885c) is assumed to play a key role in pathogenesis of tuberculosis. Also, the inhibition of MtbCM may hinder the supply of nutrients to the organism. Indeed, the existence of chorismate mutase (CM) in bacteria, fungi and higher plants but not in human and low sequence homology among known CM makes it an interesting target for the discovery of anti-tubercular agents. The present article mainly focuses on the recent developments in the structure, function and inhibition of MtbCM. The understanding of various aspects of MtbCM as presented in the current article may facilitate the design and subsequent chemical synthesis of new inhibitors against ∗MtbCM, that could lead to the discovery and development of novel and potent anti-tubercular agents in future.
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21
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Shi Q, Li P, Zhang Y, Wang L. Visible light-induced tandem oxidative cyclization of 2-alkynylanilines with disulfides (diselenides) to 3-sulfenyl- and 3-selenylindoles under transition metal-free and photocatalyst-free conditions. Org Chem Front 2017. [DOI: 10.1039/c7qo00152e] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A simple and efficient synthesis of 3-sulfenyl (3-selenyl) indoles via visible light-induced cyclization of 2-alkynylanilines with disulfides(diselenides) was developed under transition metal-free and photocatalyst-free conditions.
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Affiliation(s)
- Qing Shi
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- China
| | - Pinhua Li
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- China
| | - Yan Zhang
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- China
| | - Lei Wang
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- China
- State Key Laboratory of Organometallic Chemistry
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22
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Liu C, Yang F. Palladium/Copper Cocatalyzed Coupling Reaction of Aroyl Hydrazides with Indoles. CHINESE J CHEM 2016. [DOI: 10.1002/cjoc.201600493] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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23
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Politanskaya LV, Shteingarts VD, Tretyakov EV. General and efficient synthesis of polyfluorinated 2-aminotolans and 2-arylindoles. J Fluor Chem 2016. [DOI: 10.1016/j.jfluchem.2016.06.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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24
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Liu C, Ding L, Guo G, Liu W, Yang FL. Palladium-catalyzed direct arylation of indoles with arylsulfonyl hydrazides. Org Biomol Chem 2016; 14:2824-7. [PMID: 26870920 DOI: 10.1039/c5ob02569a] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A novel method to synthesise 2-arylindoles is demonstrated via direct arylation of indoles with arylsulfonyl hydrazides. Under the optimized reaction conditions, the reaction well tolerates a wide variety of functional groups to afford structurally diverse 2-arylindoles in good to excellent yields at 70 °C.
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Affiliation(s)
- Congrong Liu
- School of Environment Engineering, Nanjing Institute of Technology, 1 Hongjingdadao, Nanjing, Jiangsu 211167, China.
| | - Lianghui Ding
- School of Environment Engineering, Nanjing Institute of Technology, 1 Hongjingdadao, Nanjing, Jiangsu 211167, China.
| | - Guang Guo
- School of Environment Engineering, Nanjing Institute of Technology, 1 Hongjingdadao, Nanjing, Jiangsu 211167, China.
| | - Weiwei Liu
- School of Communication Engineering, Nanjing Institute of Technology, 1 Hongjingdadao, Nanjing, Jiangsu 211167, China
| | - Fu-Lai Yang
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
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25
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Blair LM, Sperry J. Total syntheses of (±)-spiroindimicins B and C enabled by a late-stage Schöllkopf-Magnus-Barton-Zard (SMBZ) reaction. Chem Commun (Camb) 2016; 52:800-2. [PMID: 26569421 DOI: 10.1039/c5cc09060a] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The spiroindimicins are a family of structurally unprecedented alkaloids isolated from the deep-sea-derived marine actinomycete Streptomyces sp. SCSIO 03032. The total syntheses of (±)-spiroindimicins B and C are disclosed, the first of any member of this family. Central to the successful strategy was installing the spirocentre using a mild intramolecular Heck reaction, the assembly of a pentacyclic spirobisindole by Fischer indolization and a late-stage Schöllkopf-Magnus-Barton-Zard (SMBZ) reaction to construct the trisubstituted pyrrole.
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Affiliation(s)
- Lachlan M Blair
- School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland, 1010, New Zealand.
| | - Jonathan Sperry
- School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland, 1010, New Zealand.
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26
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Naidu KM, Srinivasarao S, Agnieszka N, Ewa AK, Kumar MMK, Chandra Sekhar KVG. Seeking potent anti-tubercular agents: Design, synthesis, anti-tubercular activity and docking study of various ((triazoles/indole)-piperazin-1-yl/1,4-diazepan-1-yl)benzo[d]isoxazole derivatives. Bioorg Med Chem Lett 2016; 26:2245-50. [PMID: 27020525 DOI: 10.1016/j.bmcl.2016.03.059] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Revised: 02/04/2016] [Accepted: 03/15/2016] [Indexed: 01/22/2023]
Abstract
A series of thirty eight novel 3-(4-((substituted-1H-1,2,3-triazol-4-yl)methyl)piperazin-1-yl/1,4-diazepan-1-yl)benzo[d]isoxazole and 1-(4-(benzo[d]isoxazol-3-yl)piperazin-1-yl/1,4-diazepan-1-yl)-2-(1H-indol-3-yl)substituted-1-one analogues were synthesised, characterised using various analytical techniques and evaluated for in vitro anti-tubercular activity against Mycobacterium tuberculosis H37Rv strain and two 'wild' strains Spec. 210 and Spec. 192. The titled compounds exhibited minimum inhibitory concentration (MIC) ranging from 6.16 to >200μM. Among the tested compounds, 7i, 7y and 7z exhibited moderate activity (MIC=24.03-29.19μM) and 7j exhibited very good anti-tubercular activity (MIC=6.16μM). Furthermore, 7i, 7j, 7y and 7z were found to be non-toxic against mouse macrophage cell lines when screened for toxicity. All the synthesised compounds were docked to pantothenate synthetase enzyme site to know deferent binding interactions with the receptor.
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Affiliation(s)
- Kalaga Mahalakshmi Naidu
- Department of Chemistry, Birla Institute of Technology & Science-Pilani, Hyderabad Campus, Jawahar Nagar, Shamirpet Mandal, Hyderabad 500 078, India
| | - Singireddi Srinivasarao
- Department of Chemistry, Birla Institute of Technology & Science-Pilani, Hyderabad Campus, Jawahar Nagar, Shamirpet Mandal, Hyderabad 500 078, India
| | - Napiórkowska Agnieszka
- Microbiology Department, National Tuberculosis and Lung Diseases Research Institute, 01-138 Warsaw, Poland
| | - Augustynowicz-Kopeć Ewa
- Microbiology Department, National Tuberculosis and Lung Diseases Research Institute, 01-138 Warsaw, Poland
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27
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Kumar KS, Rajesham B, Ramulu MS, Bhaskar B, Dash SN, Ashfaq MA, Nagarapu R, Khan AA, Lehtonen S, Pal M. Cu-Catalyzed ligand-free synthesis of rosuvastatin based novel indole derivatives as potential anticancer agents. RSC Adv 2016. [DOI: 10.1039/c6ra20148b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Rosuvastatin based indoles showed anti-proliferative and apoptotic activities and an increase of p21 mRNA expression levels in zebrafish larvae.
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Affiliation(s)
- K. Shiva Kumar
- Department of Chemistry
- Osmania University
- Hyderabad-500 007
- India
| | | | | | | | | | - Mohd Ashraf Ashfaq
- Central Laboratory for Stem Cell Research and Translational Medicine
- CLRD Deccan Colleges of Medical Sciences
- Hyderabad-500 058
- India
| | - Raju Nagarapu
- Central Laboratory for Stem Cell Research and Translational Medicine
- CLRD Deccan Colleges of Medical Sciences
- Hyderabad-500 058
- India
| | - Aleem Ahmed Khan
- Central Laboratory for Stem Cell Research and Translational Medicine
- CLRD Deccan Colleges of Medical Sciences
- Hyderabad-500 058
- India
| | - Sanna Lehtonen
- Department of Pathology
- University of Helsinki
- Helsinki
- Finland
| | - Manojit Pal
- Dr Reddy's Institute of Life Sciences
- Hyderabad Central University
- Hyderabad-500 046
- India
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28
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Liu CR, Ding LH. Byproduct promoted regioselective sulfenylation of indoles with sulfinic acids. Org Biomol Chem 2015; 13:2251-4. [PMID: 25588212 DOI: 10.1039/c4ob02575j] [Citation(s) in RCA: 85] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
An unprecedented method to synthesise 3-sulfenylindoles is demonstrated via byproduct promoted sulfenylation of indoles with sulfinic acids in the absence of an external catalyst. The reaction selectively afforded structurally diverse indole thioethers in good to excellent yields in 1,2-dichloroethane at 80 °C.
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Affiliation(s)
- Cong-Rong Liu
- School of Environment Engineering, Nanjing Institute of Technology, 1 Hongjingdadao, Nanjing, Jiangsu 211167, China.
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29
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Xia XD, Xuan J, Wang Q, Lu LQ, Chen JR, Xiao WJ. Synthesis of 2-Substituted Indoles through Visible Light-Induced Photocatalytic Cyclizations of Styryl Azides. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400527] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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30
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Rao RM, Luther BJ, Rani CS, Suresh N, Kapavarapu R, Parsa KVL, Rao MVB, Pal M. Synthesis of 2H-1,3-benzoxazin-4(3H)-one derivatives containing indole moiety: their in vitro evaluation against PDE4B. Bioorg Med Chem Lett 2014; 24:1166-71. [PMID: 24440301 DOI: 10.1016/j.bmcl.2013.12.117] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2013] [Revised: 12/26/2013] [Accepted: 12/28/2013] [Indexed: 01/17/2023]
Abstract
A number of 2H-1,3-benzoxazin-4(3H)-one derivatives containing indole or benzofuran moieties were synthesized by using Pd/C-Cu mediated coupling-cyclization strategy as a key step. The o-iodoanilides or o-iodophenol were coupled with 3-{2-(prop-2-ynyloxy)ethyl}-2H-benzo[e][1,3]oxazin-4(3H)-one using 10%Pd/C-CuI-PPh3 as a catalyst system and Et3N as a base to give the target compounds. All the synthesized compounds were tested for their PDE4B inhibitory potential in vitro using a cell based cAMP reporter assay. Some of them showed fold increase of the cAMP level when tested at 30 μM. A representative compound showed encouraging PDE4B inhibitory properties that were supported by its docking results.
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Affiliation(s)
- Raja Mohan Rao
- Dr. Reddys Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad 500 046, India
| | | | | | - Namburi Suresh
- Department of Chemistry, Krishna University, Krishna Dist., Andhra Pradesh, India
| | - Ravikumar Kapavarapu
- Doctoral Programme in Experimental Biology and Biomedicine, Center for Neuroscience and Cell Biology, University of Coimbra, 3004-517 Coimbra, Portugal
| | - Kishore V L Parsa
- Dr. Reddys Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad 500 046, India
| | | | - Manojit Pal
- Dr. Reddys Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad 500 046, India.
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31
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Dulla B, Sailaja E, Reddy CH U, Aeluri M, Kalle AM, Bhavani S, Rambabu D, Rao MB, Pal M. Synthesis of indole based novel small molecules and their in vitro anti-proliferative effects on various cancer cell lines. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2013.12.050] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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32
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Mallikarjuna Rao V, Mahesh Kumar P, Rambabu D, Kapavarapu R, Shobha Rani S, Misra P, Pal M. Novel alkynyl substituted 3,4-dihydropyrimidin-2(1H)-one derivatives as potential inhibitors of chorismate mutase. Bioorg Chem 2013; 51:48-53. [DOI: 10.1016/j.bioorg.2013.08.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Revised: 08/01/2013] [Accepted: 08/09/2013] [Indexed: 11/25/2022]
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33
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Rambabu D, Raja G, Yogi Sreenivas B, Seerapu G, Lalith Kumar K, Deora GS, Haldar D, Rao M, Pal M. Spiro heterocycles as potential inhibitors of SIRT1: Pd/C-mediated synthesis of novel N-indolylmethyl spiroindoline-3,2′-quinazolines. Bioorg Med Chem Lett 2013; 23:1351-7. [DOI: 10.1016/j.bmcl.2012.12.089] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2012] [Revised: 12/12/2012] [Accepted: 12/25/2012] [Indexed: 10/27/2022]
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34
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Ultrasound-based approach to spiro-2,3-dihydroquinazolin-4(1H)-ones: their in vitro evaluation against chorismate mutase. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2012.11.057] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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35
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An efficient, general synthesis of 2-substituted 3,6-dihydropyrrolo[3,2-e]indoles involving one-pot Sonogashira coupling and cyclisation. MONATSHEFTE FUR CHEMIE 2012. [DOI: 10.1007/s00706-012-0859-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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36
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Ponpandian T, Muthusubramanian S. Copper catalysed domino decarboxylative cross coupling-cyclisation reactions: synthesis of 2-arylindoles. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.06.023] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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37
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Adepu R, Shiva Kumar K, Sandra S, Rambabu D, Rama Krishna G, Malla Reddy C, Kandale A, Misra P, Pal M. C-N bond formation under Cu-catalysis: synthesis and in vitro evaluation of N-aryl substituted thieno[2,3-d]pyrimidin-4(3H)-ones against chorismate mutase. Bioorg Med Chem 2012; 20:5127-38. [PMID: 22863527 DOI: 10.1016/j.bmc.2012.07.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2012] [Revised: 07/05/2012] [Accepted: 07/06/2012] [Indexed: 12/26/2022]
Abstract
A series of novel N-aryl substituted thieno[2,3-d]pyrimidin-4(3H)-ones were designed and synthesized as potential inhibitors of chorismate mutase. Synthesis of this class of compounds was carried out by using Cu-mediated C-N bond forming reaction between thieno[2,3-d]pyrimidin-4(3H)-ones and aryl boronic acids. The reaction can be performed in an open flask as the conversion was found to be not sensitive to the presence of air or atmospheric moisture. A range of compounds were prepared by using this method and single crystal X-ray diffraction study was performed using a representative compound. In vitro pharmacological data of some of the compounds synthesized along with dose response studies using active molecules are presented. In silico interactions of these molecules with chorismate mutase are also presented.
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Affiliation(s)
- Raju Adepu
- Institute of Life Sciences, University of Hyderabad Campus, Hyderabad 500046, India
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38
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Kumar KS, Rambabu D, Sandra S, Kapavarapu R, Krishna GR, Basaveswara Rao MV, Chatti K, Reddy CM, Misra P, Pal M. AlCl3 induced (hetero)arylation of 2,3-dichloroquinoxaline: a one-pot synthesis of mono/disubstituted quinoxalines as potential antitubercular agents. Bioorg Med Chem 2012; 20:1711-22. [PMID: 22316553 DOI: 10.1016/j.bmc.2012.01.012] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2011] [Revised: 01/07/2012] [Accepted: 01/09/2012] [Indexed: 11/28/2022]
Abstract
A direct and single-step method has been developed for the synthesis of mono and 2,3-disubstituted quinoxalines by using a AlCl(3) induced (hetero)arylation of 2,3-dichloroquinoxaline. Both symmetrical and unsymmetrical 2,3-disubstituted quinoxalines can be prepared conveniently by using this method under appropriate reaction conditions. The reaction proceeds via C-C bond formation and can be utilized for the preparation of a variety of quinoxaline derivatives from readily available starting materials and reagents. The molecular structure of a representative compound was confirmed by single crystal X-ray diffraction study. Some of the compounds synthesized were tested for chorismate mutase inhibitory properties in vitro and one compound showed promising activity representing one of the few examples of chorismate mutase inhibition by a heteroarene based small molecule.
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Affiliation(s)
- K Shiva Kumar
- Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad, India
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39
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Prasad B, Adepu R, Sandra S, Rambabu D, Krishna GR, Reddy CM, Deora GS, Misra P, Pal M. AlCl3 mediated unexpected migration of sulfonyl groups: regioselective synthesis of 7-sulfonyl indoles of potential pharmacological interest. Chem Commun (Camb) 2012; 48:10434-6. [DOI: 10.1039/c2cc35757g] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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40
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Cu-mediated N-arylation of 1,2,3-triazin-4-ones: Synthesis of fused triazinone derivatives as potential inhibitors of chorismate mutase. Bioorg Med Chem Lett 2012; 22:1146-50. [DOI: 10.1016/j.bmcl.2011.11.096] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2011] [Revised: 11/04/2011] [Accepted: 11/24/2011] [Indexed: 11/23/2022]
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