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Rathi K, Shukla M, Hassam M, Shrivastava R, Rawat V, Prakash Verma V. Recent advances in the synthesis and antimalarial activity of 1,2,4-trioxanes. Bioorg Chem 2024; 143:107043. [PMID: 38134523 DOI: 10.1016/j.bioorg.2023.107043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 11/29/2023] [Accepted: 12/15/2023] [Indexed: 12/24/2023]
Abstract
The increasing resistance of various malarial parasite strains to drugs has made the production of a new, rapid-acting, and efficient antimalarial drug more necessary, as the demand for such drugs is growing rapidly. As a major global health concern, various methods have been implemented to address the problem of drug resistance, including the hybrid drug concept, combination therapy, the development of analogues of existing medicines, and the use of drug resistance reversal agents. Artemisinin and its derivatives are currently used against multidrug- resistant P. falciparum species. However, due to its natural origin, its use has been limited by its scarcity in natural resources. As a result, finding a substitute becomes more crucial, and the peroxide group in artemisinin, responsible for the drugs biological action in the form of 1,2,4-trioxane, may hold the key to resolving this issue. The literature suggests that 1,2,4-trioxanes have the potential to become an alternative to current malaria drugs, as highlighted in this review. This is why 1,2,4-trioxanes and their derivatives have been synthesized on a large scale worldwide, as they have shown promising antimalarial activity in vivo and in vitro against Plasmodium species. Consequently, the search for a more convenient, environment friendly, sustainable, efficient, and effective synthetic pathway for the synthesis of 1,2,4-trioxanes continues. The aim of this work is to provide a comprehensive analysis of the synthesis and mechanism of action of 1,2,4-trioxanes. This systematic review highlights the most recent summaries of derivatives of 1,2,4-trioxane compounds and dimers with potential antimalarial activity from January 1988 to 2023.
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Affiliation(s)
- Komal Rathi
- Department of Chemistry, Banasthali University, Banasthali Newai 304022, Rajasthan, India
| | - Monika Shukla
- Department of Chemistry, Banasthali University, Banasthali Newai 304022, Rajasthan, India
| | | | - Rahul Shrivastava
- Department of Chemistry, Manipal University Jaipur, Jaipur (Rajasthan), VPO- Dehmi-Kalan, Off Jaipur-Ajmer Express Way, Jaipur, Rajasthan 30300, India
| | - Varun Rawat
- School of Chemistry, Tel Aviv University, Tel Aviv 6997801, Israel.
| | - Ved Prakash Verma
- Department of Chemistry, Banasthali University, Banasthali Newai 304022, Rajasthan, India.
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Shukla M, Rathi K, Hassam M, Yadav DK, Karnatak M, Rawat V, Verma VP. An overview on the antimalarial activity of 1,2,4-trioxanes, 1,2,4-trioxolanes and 1,2,4,5-tetraoxanes. Med Res Rev 2024; 44:66-137. [PMID: 37222435 DOI: 10.1002/med.21979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 05/04/2023] [Accepted: 05/08/2023] [Indexed: 05/25/2023]
Abstract
The demand for novel, fast-acting, and effective antimalarial medications is increasing exponentially. Multidrug resistant forms of malarial parasites, which are rapidly spreading, pose a serious threat to global health. Drug resistance has been addressed using a variety of strategies, such as targeted therapies, the hybrid drug idea, the development of advanced analogues of pre-existing drugs, and the hybrid model of resistant strains control mechanisms. Additionally, the demand for discovering new potent drugs grows due to the prolonged life cycle of conventional therapy brought on by the emergence of resistant strains and ongoing changes in existing therapies. The 1,2,4-trioxane ring system in artemisinin (ART) is the most significant endoperoxide structural scaffold and is thought to be the key pharmacophoric moiety required for the pharmacodynamic potential of endoperoxide-based antimalarials. Several derivatives of artemisinin have also been found as potential treatments for multidrug-resistant strain in this area. Many 1,2,4-trioxanes, 1,2,4-trioxolanes, and 1,2,4,5-tetraoxanes derivatives have been synthesised as a result, and many of these have shown promise antimalarial activity both in vivo and in vitro against Plasmodium parasites. As a consequence, efforts to develop a functionally straight-forward, less expensive, and vastly more effective synthetic pathway to trioxanes continue. This study aims to give a thorough examination of the biological properties and mode of action of endoperoxide compounds derived from 1,2,4-trioxane-based functional scaffolds. The present system of 1,2,4-trioxane, 1,2,4-trioxolane, and 1,2,4,5-tetraoxane compounds and dimers with potentially antimalarial activity will be highlighted in this systematic review (January 1963-December 2022).
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Affiliation(s)
- Monika Shukla
- Department of Chemistry, Banasthali University, Newai, Rajasthan, India
| | - Komal Rathi
- Department of Chemistry, Banasthali University, Newai, Rajasthan, India
| | - Mohammad Hassam
- Department of Chemistry, Chemveda Life Sciences Pvt Ltd, Hyderabad, Telangana, India
| | - Dinesh Kumar Yadav
- Department of Chemistry, Mohanlal Sukhadia University, Udaipur, Rajasthan, India
| | - Manvika Karnatak
- Department of Chemistry, Banasthali University, Newai, Rajasthan, India
| | - Varun Rawat
- School of Chemistry, Tel Aviv University, Tel Aviv, Israel
| | - Ved Prakash Verma
- Department of Chemistry, Banasthali University, Newai, Rajasthan, India
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Yang J, Wang Y, Guan W, Su W, Li G, Zhang S, Yao H. Spiral molecules with antimalarial activities: A review. Eur J Med Chem 2022; 237:114361. [DOI: 10.1016/j.ejmech.2022.114361] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 04/03/2022] [Accepted: 04/04/2022] [Indexed: 11/04/2022]
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Tiwari MK, Coghi P, Agrawal P, Yadav DK, Yang LJ, Congling Q, Sahal D, Wai Wong VK, Chaudhary S. Novel halogenated arylvinyl-1,2,4 trioxanes as potent antiplasmodial as well as anticancer agents: Synthesis, bioevaluation, structure-activity relationship and in-silico studies. Eur J Med Chem 2021; 224:113685. [PMID: 34303874 DOI: 10.1016/j.ejmech.2021.113685] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 06/13/2021] [Accepted: 07/02/2021] [Indexed: 10/20/2022]
Abstract
Herein, we have synthesized a series of lipophilic, halogenated-arylvinyl-1,2,4-trioxanes 8a-g (28 compounds) and assessed for their in vitro anti-plasmodial activity in Plasmodium falciparum culture using SYBRgreen-I fluorescence assay against chloroquine-resistant Pf INDO and artemisinin-resistant Pf Cam 3.1R539T (MRA-1240) strains. Alongside, the cell cytotoxic potential of 8a-g has also been determined against the HEK293 cell line in vitro. Out of twenty-eight halogenated-arylvinyl-1,2,4-trioxanes; ten analogues (8a2, 8a4, 8b2, 8b4, 8d4, 8e1, 8e2, 8e4,8f2, and 8g4) have shown potent in vitro antiplasmodial activity with IC50 < 27 nM (IC50 range = 4.48-26.58 nM). Also, the selectivity index (SI) for these ten analogues were found in the range of 72.00-3972.50 which indicates their selective potential towards Plasmodium cells. Results of the cell cycle stage specificity with two of the most potent compounds 8a4 {(IC50 = 4.48 nM; SI = 3972.50) more potent than chloroquine (IC50 = 546 nM; SI = 36.64) and artesunate (IC50 = 6.6 nM; SI = 4333.33)} and 8e2 (IC50 = 9.69 nM; SI = 1348) against Pf INDO indicated all three stages to be the target of the action of 8e2 while only rings and trophozoites appeared to be targeted by 8a4. Ring stage survival assay against artemisinin-resistant Pf Cam 3.1R539T indicated that 8a4 may be well suited to replace artemisinin from current ACTs which are experiencing in vivo delayed parasite clearance. With intraperitoneal (i.p.) and oral (p.o.) route at the dose of 50 mg/kg/day × 4 days; 8a4 has also shown 100% suppression of parasitemia in P. berghei ANKA infected Balb C mice. Further, the in vitro anticancer activity of 8a-g performed against human lung (A549) and liver (HepG2) cancer cell lines as also against immortalized normal lung (BEAS-2B) and liver (LO2) cell lines has revealed that most of the derivatives are endowed also with promising anticancer activity (IC50 = 0.69-15 μM; SI = 1.02-20.61) in comparison with standard drugs such as chloroquine (IC50 = 100 μM; SI = 0.03), artemisinin (IC50 = 100 μM), and artesunic acid (IC50 = 9.85 μM; SI = 0.76), respectively. All the derivatives have shown moderate anticancer activity against liver (HepG2) cancer cell lines. Arylvinyl-1,2,4-trioxanes 8f2 (IC50 = 0.69 μM; SI = 16.66), the most active compound of the series, has shown ∼145 fold more cytotoxic potential with higher selectivity in comparison to reference drugs chloroquine (IC50 = 100 μM; SI = 0.03) and artemisinin (IC50 = 100 μM), respectively against the lung (A549) cancer cell line. Finally, the in-silico docking studies of the potent halogenated 1,2,4-trioxanes along with reference drug molecules against epidermal growth factor receptor (EGFR; PDB ID: 1M17) have demonstrated the strong virtual interaction.
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Affiliation(s)
- Mohit K Tiwari
- Laboratory of Organic and Medicinal Chemistry, Department of Chemistry, Malaviya National Institute of Technology, Jawaharlal Nehru Marg, Jaipur, 302017, India
| | - Paolo Coghi
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau, China; School of Pharmacy, Macau University of Science and Technology, Avenida wai long, Taipa, Macau, China
| | - Prakhar Agrawal
- Malaria Drug Discovery Laboratory, International Centre for Genetic Engineering and Biotechnology, Aruna Asaf Ali Marg, 110 067, New Delhi, India
| | - Dharmendra K Yadav
- College of Pharmacy, Gachon University of Medicine and Science, Hambakmoeiro 191, Yeonsu-gu, Incheon city, 406-799, South Korea
| | - Li Jun Yang
- Dr. Neher's Biophysics Laboratory for Innovative Drug Discovery, State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Qiu Congling
- Dr. Neher's Biophysics Laboratory for Innovative Drug Discovery, State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Dinkar Sahal
- Malaria Drug Discovery Laboratory, International Centre for Genetic Engineering and Biotechnology, Aruna Asaf Ali Marg, 110 067, New Delhi, India.
| | - Vincent Kam Wai Wong
- Dr. Neher's Biophysics Laboratory for Innovative Drug Discovery, State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China.
| | - Sandeep Chaudhary
- Laboratory of Organic and Medicinal Chemistry, Department of Chemistry, Malaviya National Institute of Technology, Jawaharlal Nehru Marg, Jaipur, 302017, India; Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research-Raebareli (Transit Campus), Bijnor-Sisendi Road, Near CRPF Base Camp, Sarojini Nagar, Lucknow, U.P, 226 002, India.
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Patel OPS, Beteck RM, Legoabe LJ. Exploration of artemisinin derivatives and synthetic peroxides in antimalarial drug discovery research. Eur J Med Chem 2021; 213:113193. [PMID: 33508479 DOI: 10.1016/j.ejmech.2021.113193] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 12/04/2020] [Accepted: 01/11/2021] [Indexed: 12/22/2022]
Abstract
Malaria is a life-threatening infectious disease caused by protozoal parasites belonging to the genus Plasmodium. It caused an estimated 405,000 deaths and 228 million malaria cases globally in 2018 as per the World Malaria Report released by World Health Organization (WHO) in 2019. Artemisinin (ART), a "Nobel medicine" and its derivatives have proven potential application in antimalarial drug discovery programs. In this review, antimalarial activity of the most active artemisinin derivatives modified at C-10/C-11/C-16/C-6 positions and synthetic peroxides (endoperoxides, 1,2,4-trioxolanes, 1,2,4-trioxanes, and 1,2,4,5-tetraoxanes) are systematically summarized. The developmental trend of ART derivatives, and cyclic peroxides along with their antimalarial activity and how the activity is affected by structural variations on different sites of the compounds are discussed. This compilation would be very useful towards scaffold hopping aimed at avoiding the unnecessary complexity in cyclic peroxides, and ultimately act as a handy resource for the development of potential chemotherapeutics against Plasmodium species.
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Affiliation(s)
- Om P S Patel
- Centre of Excellence for Pharmaceutical Sciences, North-West University, Private Bag X6001, Potchefstroom, 2520, South Africa.
| | - Richard M Beteck
- Centre of Excellence for Pharmaceutical Sciences, North-West University, Private Bag X6001, Potchefstroom, 2520, South Africa
| | - Lesetja J Legoabe
- Centre of Excellence for Pharmaceutical Sciences, North-West University, Private Bag X6001, Potchefstroom, 2520, South Africa.
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Tiwari MK, Coghi P, Agrawal P, Shyamlal BRK, Jun Yang L, Yadav L, Peng Y, Sharma R, Yadav DK, Sahal D, Kam Wai Wong V, Chaudhary S. Design, Synthesis, Structure‐Activity Relationship and Docking Studies of Novel Functionalized Arylvinyl‐1,2,4‐Trioxanes as Potent Antiplasmodial as well as Anticancer Agents. ChemMedChem 2020; 15:1216-1228. [DOI: 10.1002/cmdc.202000045] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 04/21/2020] [Indexed: 12/13/2022]
Affiliation(s)
- Mohit K. Tiwari
- Laboratory of Organic and Medicinal ChemistryDepartment of ChemistryMalaviya National Institute of Technology Jawaharlal Nehru Marg Jaipur 302017 India
| | - Paolo Coghi
- School of PharmacyMacau University of Science and Technology Avenida wai long Taipa Macau China
| | - Prakhar Agrawal
- Malaria Drug Discovery LaboratoryInternational Centre for Genetic Engineering and Biotechnology Aruna Asaf Ali Marg 110 067 New Delhi India
| | - Bharti Rajesh K. Shyamlal
- Laboratory of Organic and Medicinal ChemistryDepartment of ChemistryMalaviya National Institute of Technology Jawaharlal Nehru Marg Jaipur 302017 India
| | - Li Jun Yang
- State Key Laboratory of Quality Research in Chinese MedicineMacau University of Science and Technology Avenida Wai Long Taipa Macau China
| | - Lalit Yadav
- Laboratory of Organic and Medicinal ChemistryDepartment of ChemistryMalaviya National Institute of Technology Jawaharlal Nehru Marg Jaipur 302017 India
| | - Yuzhong Peng
- School of PharmacyMacau University of Science and Technology Avenida wai long Taipa Macau China
| | - Richa Sharma
- Laboratory of Organic and Medicinal ChemistryDepartment of ChemistryMalaviya National Institute of Technology Jawaharlal Nehru Marg Jaipur 302017 India
| | - Dharmendra K. Yadav
- College of PharmacyGachon University of Medicine and Science Hambakmoeiro 191, Yeonsu-gu Incheon city 406-799 South Korea
| | - Dinkar Sahal
- Malaria Drug Discovery LaboratoryInternational Centre for Genetic Engineering and Biotechnology Aruna Asaf Ali Marg 110 067 New Delhi India
| | - Vincent Kam Wai Wong
- State Key Laboratory of Quality Research in Chinese MedicineMacau University of Science and Technology Avenida Wai Long Taipa Macau China
| | - Sandeep Chaudhary
- Laboratory of Organic and Medicinal ChemistryDepartment of ChemistryMalaviya National Institute of Technology Jawaharlal Nehru Marg Jaipur 302017 India
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7
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Yadav L, Tiwari MK, Kumar Shyamlal BR, Mathur M, Swami AK, Puri SK, Naikade NK, Chaudhary S. Synthesis and antimalarial activity of novel bicyclic and tricyclic aza-peroxides. RSC Adv 2016. [DOI: 10.1039/c5ra16781g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Bicyclic and tricyclic aza-peroxides were synthesized and assessed for theirin vitroandin vivoantimalarial activities againstPlasmodium falciparum(3D7 strain) andPlasmodium yoelii nigeriensisin Swiss mice by an oral route, respectively.
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Affiliation(s)
- Lalit Yadav
- Department of Chemistry
- Malaviya National Institute of Technology
- Jawaharlal Nehru Marg
- Jaipur-302017
- India
| | - Mohit K. Tiwari
- Department of Chemistry
- Malaviya National Institute of Technology
- Jawaharlal Nehru Marg
- Jaipur-302017
- India
| | | | - Manas Mathur
- Department of Advance Molecular Microbiology
- Seminal Applied Sciences Pvt. Ltd
- Jaipur-302015
- India
| | - Ajit K. Swami
- Department of Advance Molecular Microbiology
- Seminal Applied Sciences Pvt. Ltd
- Jaipur-302015
- India
| | - Sunil K. Puri
- Division of Parasitology
- CSIR-Central Drug Research Institute
- Lucknow-226031
- India
| | - Niraj K. Naikade
- Division of Medicinal and Process Chemistry
- CSIR-Central Drug Research Institute
- Lucknow-226031
- India
- Sandoz India Pvt. Ltd
| | - Sandeep Chaudhary
- Department of Chemistry
- Malaviya National Institute of Technology
- Jawaharlal Nehru Marg
- Jaipur-302017
- India
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8
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Single Ascending Dose Safety and Pharmacokinetics of CDRI-97/78: First-in-Human Study of a Novel Antimalarial Drug. Malar Res Treat 2014; 2014:372521. [PMID: 24800100 PMCID: PMC3985299 DOI: 10.1155/2014/372521] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Revised: 01/13/2014] [Accepted: 01/17/2014] [Indexed: 11/17/2022] Open
Abstract
Background. CDRI 97/78 has shown efficacy in animal models of falciparum malaria. The present study is the first in-human phase I trial in healthy volunteers. Methods. The study was conducted in 50 healthy volunteers in a single, ascending dose, randomized, placebo-controlled, double blind design. The dose ranges evaluated were from 80 mg to 700 mg. Volunteers were assessed for clinical, biochemical, haematological, radiographic, and electrocardiographic parameters for any adverse events in an in-house facility. After evaluation of safety study results, another cohort of 16 participants were administered a single oral dose of 200 mg of the drug and a detailed pharmacokinetic analysis was undertaken. Results. The compound was found to be well tolerated. MTD was not reached. The few adverse events noted were of grade 2 severity, not requiring intervention and not showing any dose response relationship. The laboratory and electrocardiographic parameters showed statistically significant differences, but all were within the predefined normal range. These parameters were not associated with symptoms/signs and hence regarded as clinically irrelevant. Mean values of T1/2, MRT, and AUC0−∞ of the active metabolite 97/63 were 11.85 ± 1.94 h, 13.77 ± 2.05 h, and 878.74 ± 133.15 ng·h/mL, respectively Conclusion. The novel 1,2,4 trioxane CDRI 97/78 is safe and will be an asset in malarial therapy if results are replicated in multiple dose studies and benefit is shown in confirmatory trials.
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Terent'ev AO, Borisov DA, Vil’ VA, Dembitsky VM. Synthesis of five- and six-membered cyclic organic peroxides: Key transformations into peroxide ring-retaining products. Beilstein J Org Chem 2014; 10:34-114. [PMID: 24454562 PMCID: PMC3896255 DOI: 10.3762/bjoc.10.6] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2013] [Accepted: 11/16/2013] [Indexed: 12/16/2022] Open
Abstract
The present review describes the current status of synthetic five and six-membered cyclic peroxides such as 1,2-dioxolanes, 1,2,4-trioxolanes (ozonides), 1,2-dioxanes, 1,2-dioxenes, 1,2,4-trioxanes, and 1,2,4,5-tetraoxanes. The literature from 2000 onwards is surveyed to provide an update on synthesis of cyclic peroxides. The indicated period of time is, on the whole, characterized by the development of new efficient and scale-up methods for the preparation of these cyclic compounds. It was shown that cyclic peroxides remain unchanged throughout the course of a wide range of fundamental organic reactions. Due to these properties, the molecular structures can be greatly modified to give peroxide ring-retaining products. The chemistry of cyclic peroxides has attracted considerable attention, because these compounds are used in medicine for the design of antimalarial, antihelminthic, and antitumor agents.
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Key Words
- 1,2,4,5-tetraoxanes
- 1,2,4-trioxanes
- 1,2,4-trioxolanes
- 1,2-dioxanes
- 1,2-dioxenes
- 1,2-dioxolanes
- cyclic peroxides
- ozonides
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Affiliation(s)
- Alexander O Terent'ev
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow, 119991, Russia
| | - Dmitry A Borisov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow, 119991, Russia
| | - Vera A Vil’
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow, 119991, Russia
| | - Valery M Dembitsky
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow, 119991, Russia
- Institute for Drug Research, P.O. Box 12065, Hebrew University, Jerusalem 91120, Israel
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Maurya R, Soni A, Anand D, Ravi M, Raju KSR, Taneja I, Naikade NK, Puri SK, Wahajuddin, Kanojiya S, Yadav PP. Synthesis and antimalarial activity of 3,3-spiroanellated 5,6-disubstituted 1,2,4-trioxanes. ACS Med Chem Lett 2013; 4:165-9. [PMID: 24900640 DOI: 10.1021/ml300188t] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2012] [Accepted: 12/11/2012] [Indexed: 11/30/2022] Open
Abstract
Novel 3,3-spiroanellated 5-aryl, 6-arylvinyl-substituted 1,2,4-trioxanes 19-34 have been synthesized and appraised for their antimalarial activity against multidrug-resistant Plasmodium yoelii nigeriensis in Swiss mice by oral route at doses ranging from 96 mg/kg × 4 days to 24 mg/kg × 4 days. The most active compound of the series (compound 25) provided 100% protection at 24 mg/kg × 4 days, and other 1,2,4-trioxanes 22, 26, 27, and 30 also showed promising activity. In this model, β-arteether provided 100 and 20% protection at 48 mg/kg × 4 days and 24 mg/kg × 4 days, respectively, by oral route. Compound 25 displayed a similar in vitro pharmacokinetic profile to that of reference drug β-arteether. The activity results demonstrated the importance of an aryl moiety at the C-5 position on the 1,2,4-trioxane pharmacophore.
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Affiliation(s)
- Ranjani Maurya
- Division of Medicinal & Process Chemistry, ‡Division of Parasitology, §Division of Pharmacokinetics and Metabolism, and ∥Sophisticated Analytical Instrument Facility, Central Drug Research Institute, Lucknow-226001, India
| | - Awakash Soni
- Division of Medicinal & Process Chemistry, ‡Division of Parasitology, §Division of Pharmacokinetics and Metabolism, and ∥Sophisticated Analytical Instrument Facility, Central Drug Research Institute, Lucknow-226001, India
| | - Devireddy Anand
- Division of Medicinal & Process Chemistry, ‡Division of Parasitology, §Division of Pharmacokinetics and Metabolism, and ∥Sophisticated Analytical Instrument Facility, Central Drug Research Institute, Lucknow-226001, India
| | - Makthala Ravi
- Division of Medicinal & Process Chemistry, ‡Division of Parasitology, §Division of Pharmacokinetics and Metabolism, and ∥Sophisticated Analytical Instrument Facility, Central Drug Research Institute, Lucknow-226001, India
| | - Kanumuri S. R. Raju
- Division of Medicinal & Process Chemistry, ‡Division of Parasitology, §Division of Pharmacokinetics and Metabolism, and ∥Sophisticated Analytical Instrument Facility, Central Drug Research Institute, Lucknow-226001, India
| | - Isha Taneja
- Division of Medicinal & Process Chemistry, ‡Division of Parasitology, §Division of Pharmacokinetics and Metabolism, and ∥Sophisticated Analytical Instrument Facility, Central Drug Research Institute, Lucknow-226001, India
| | - Niraj K. Naikade
- Division of Medicinal & Process Chemistry, ‡Division of Parasitology, §Division of Pharmacokinetics and Metabolism, and ∥Sophisticated Analytical Instrument Facility, Central Drug Research Institute, Lucknow-226001, India
| | - S. K. Puri
- Division of Medicinal & Process Chemistry, ‡Division of Parasitology, §Division of Pharmacokinetics and Metabolism, and ∥Sophisticated Analytical Instrument Facility, Central Drug Research Institute, Lucknow-226001, India
| | - Wahajuddin
- Division of Medicinal & Process Chemistry, ‡Division of Parasitology, §Division of Pharmacokinetics and Metabolism, and ∥Sophisticated Analytical Instrument Facility, Central Drug Research Institute, Lucknow-226001, India
| | - Sanjeev Kanojiya
- Division of Medicinal & Process Chemistry, ‡Division of Parasitology, §Division of Pharmacokinetics and Metabolism, and ∥Sophisticated Analytical Instrument Facility, Central Drug Research Institute, Lucknow-226001, India
| | - Prem P. Yadav
- Division of Medicinal & Process Chemistry, ‡Division of Parasitology, §Division of Pharmacokinetics and Metabolism, and ∥Sophisticated Analytical Instrument Facility, Central Drug Research Institute, Lucknow-226001, India
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11
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Singh C, Hassam M, Verma VP, Singh AS, Naikade NK, Puri SK, Maulik PR, Kant R. Bile Acid-Based 1,2,4-Trioxanes: Synthesis and Antimalarial Assessment. J Med Chem 2012; 55:10662-73. [DOI: 10.1021/jm301323k] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Chandan Singh
- Division of Medicinal & Process Chemistry, ‡Division of Parasitology, and §Division of Molecular and Structural Biology, CSIR-Central Drug Research Institute, Lucknow-226001, India
| | - Mohammad Hassam
- Division of Medicinal & Process Chemistry, ‡Division of Parasitology, and §Division of Molecular and Structural Biology, CSIR-Central Drug Research Institute, Lucknow-226001, India
| | - Ved Prakash Verma
- Division of Medicinal & Process Chemistry, ‡Division of Parasitology, and §Division of Molecular and Structural Biology, CSIR-Central Drug Research Institute, Lucknow-226001, India
| | - Ajit Shanker Singh
- Division of Medicinal & Process Chemistry, ‡Division of Parasitology, and §Division of Molecular and Structural Biology, CSIR-Central Drug Research Institute, Lucknow-226001, India
| | - Niraj Krishna Naikade
- Division of Medicinal & Process Chemistry, ‡Division of Parasitology, and §Division of Molecular and Structural Biology, CSIR-Central Drug Research Institute, Lucknow-226001, India
| | - Sunil K. Puri
- Division of Medicinal & Process Chemistry, ‡Division of Parasitology, and §Division of Molecular and Structural Biology, CSIR-Central Drug Research Institute, Lucknow-226001, India
| | - Prakas R. Maulik
- Division of Medicinal & Process Chemistry, ‡Division of Parasitology, and §Division of Molecular and Structural Biology, CSIR-Central Drug Research Institute, Lucknow-226001, India
| | - Ruchir Kant
- Division of Medicinal & Process Chemistry, ‡Division of Parasitology, and §Division of Molecular and Structural Biology, CSIR-Central Drug Research Institute, Lucknow-226001, India
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12
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Singh C, Hassam M, Naikade NK, Verma VP, Singh AS, Puri SK. Synthesis and Antimalarial Assessment of a New Series of Orally Active Amino-Functionalized Spiro 1,2,4-Trioxanes. J Med Chem 2010; 53:7587-98. [DOI: 10.1021/jm100678p] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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13
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Interspecies comparison of the pharmacokinetics and oral bioavailability of 99-357, a potent synthetic trioxane antimalarial compound. Eur J Pharm Sci 2010; 41:312-9. [PMID: 20599503 DOI: 10.1016/j.ejps.2010.06.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2009] [Revised: 06/12/2010] [Accepted: 06/24/2010] [Indexed: 11/24/2022]
Abstract
The pharmacokinetic data obtained in lower animals is of considerable importance in drug discovery and development. The objective of the present study was to generate in vitro and in vivo preclinical pharmacokinetic data of 99-357, a synthetic trioxane antimalarial, in rats and rabbits and to scale-up the data in order to apply for further studies. The pharmacokinetic profile of 99-357 was investigated after both intravenous and oral dose in rats and rabbits. Oral studies were carried out at three dose levels 6, 12 and 24mg/kg in rats while in rabbit only one dose level was selected. Both compartmental and non-compartmental approaches were used to calculate the pharmacokinetic parameters following intravenous and oral doses in both the species. The clearance in rat and rabbit was 45-57% and 60-67% respectively of hepatic blood flow. The plasma protein binding in rats was approximately 75%. In vitro studies showed high RBC partitioning and low to moderate hepatic clearance. Linearity was observed in terms of dose and AUCs suggesting linear pharmacokinetics at the dose levels studied in rats. The oral bioavailability of compound 99-357 in rat and rabbit at 12mg/kg dose level was comparable and 39% and 41% respectively.
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14
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6-(4′-Aryloxy-phenyl)vinyl-1,2,4-trioxanes: A new series of orally active peroxides effective against multidrug-resistant Plasmodium yoelii in Swiss mice. Bioorg Med Chem Lett 2010; 20:4459-63. [DOI: 10.1016/j.bmcl.2010.06.045] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2010] [Revised: 05/26/2010] [Accepted: 06/08/2010] [Indexed: 11/18/2022]
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15
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Bernat V, Saffon N, Maynadier M, Vial H, André-Barrès C. α-Spiro endoperoxides: synthesis and evaluation of their antimalarial activities. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.07.030] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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16
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Kaur K, Jain M, Kaur T, Jain R. Antimalarials from nature. Bioorg Med Chem 2009; 17:3229-56. [DOI: 10.1016/j.bmc.2009.02.050] [Citation(s) in RCA: 228] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2008] [Revised: 02/20/2009] [Accepted: 02/23/2009] [Indexed: 10/21/2022]
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17
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Abstract
The problem of endemic malaria continues unabated globally. Malaria affects 40 % of the global population, causing an estimated annual mortality of 1.5-2.7 million people. The World Health Organization (WHO) estimates that 90 % of these deaths occur in sub-Saharan Africa among infants under the age of five. While a vaccine against malaria continues to be elusive, chemotherapy remains the most viable alternative towards treatment of the disease. During last years, the situation has become urgent in many ways, but mainly because of the development of chloroquine-resistant (CQR) strains of Plasmodium falciparum (Pf). The discovery that artemisinin (ART, 1), an active principle of Artemisia annua L., expresses a significant antimalarial activity, especially against CQR strains, opened new approaches for combating malaria. Since the early 1980s, hundreds of semi-synthetic and synthetic peroxides have been developed and tested for their antimalarial activity, the results of which were extensively reviewed. In addition, in therapeutic practice, there is no reported case of drug resistance to these antimalarial peroxides. This review summarizes recent achievements in the area of peroxide drug development for malaria chemotherapy.
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18
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Singh C, Verma VP, Naikade NK, Singh AS, Hassam M, Puri SK. Novel Bis- and Tris-1,2,4-trioxanes: Synthesis and Antimalarial Activity against Multidrug-Resistant Plasmodium yoelii in Swiss Mice. J Med Chem 2008; 51:7581-92. [DOI: 10.1021/jm801006v] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chandan Singh
- Division of Medicinal and Process Chemistry and Division of Parasitology, Central Drug Research Institute, Lucknow-226001, India
| | - Ved Prakash Verma
- Division of Medicinal and Process Chemistry and Division of Parasitology, Central Drug Research Institute, Lucknow-226001, India
| | - Niraj Krishna Naikade
- Division of Medicinal and Process Chemistry and Division of Parasitology, Central Drug Research Institute, Lucknow-226001, India
| | - Ajit Shankar Singh
- Division of Medicinal and Process Chemistry and Division of Parasitology, Central Drug Research Institute, Lucknow-226001, India
| | - Mohammad Hassam
- Division of Medicinal and Process Chemistry and Division of Parasitology, Central Drug Research Institute, Lucknow-226001, India
| | - Sunil K. Puri
- Division of Medicinal and Process Chemistry and Division of Parasitology, Central Drug Research Institute, Lucknow-226001, India
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19
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Abstract
Trioxaquines are antimalarial agents based on hybrid structures with a dual mode of action. One of these molecules, PA1103/SAR116242, is highly active in vitro on several sensitive and resistant strains of Plasmodium falciparum at nanomolar concentrations (e.g., IC(50) value = 10 nM with FcM29, a chloroquine-resistant strain) and also on multidrug-resistant strains obtained from fresh patient isolates in Gabon. This molecule is very efficient by oral route with a complete cure of mice infected with chloroquine-sensitive or chloroquine-resistant strains of Plasmodia at 26-32 mg/kg. This compound is also highly effective in humanized mice infected with P. falciparum. Combined with a good drug profile (preliminary absorption, metabolism, and safety parameters), these data were favorable for the selection of this particular trioxaquine for development as drug candidate among 120 other active hybrid molecules.
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20
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Singh C, Pandey S, Kushwaha AK, Puri SK. New functionalized 1,2,4-trioxepanes: Synthesis and antimalarial activity against multi-drug resistant P. yoelii in mice. Bioorg Med Chem Lett 2008; 18:5190-3. [DOI: 10.1016/j.bmcl.2008.08.096] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2008] [Revised: 08/07/2008] [Accepted: 08/26/2008] [Indexed: 10/21/2022]
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21
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Bernat V, André-Barrès C, Baltas M, Saffon N, Vial H. Synthesis of antimalarial G-factors endoperoxides: relevant evidence of the formation of a biradical during the autoxidation step. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.07.047] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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22
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Griesbeck A, Blunk D, El-Idreesy T, Raabe A. Bicyclic Peroxides and Perorthoesters with 1,2,4-Trioxane Structures. Angew Chem Int Ed Engl 2007; 46:8883-6. [DOI: 10.1002/anie.200701397] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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23
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Griesbeck A, Blunk D, El-Idreesy T, Raabe A. Bicyclische Peroxide und Perorthoester mit 1,2,4-Trioxanstruktur. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200701397] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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24
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Singh C, Sharma U, Saxena G, Puri SK. Orally active antimalarials: Synthesis and bioevaluation of a new series of steroid-based 1,2,4-trioxanes against multi-drug resistant malaria in mice. Bioorg Med Chem Lett 2007; 17:4097-101. [PMID: 17548195 DOI: 10.1016/j.bmcl.2007.05.055] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2007] [Revised: 05/09/2007] [Accepted: 05/18/2007] [Indexed: 10/23/2022]
Abstract
A new series of steroid-based 1,2,4-trioxanes 7a-f, 8a-f and 9b-e have been synthesized and evaluated for their antimalarial activity against multi-drug resistant Plasmodium yoelii in Swiss mice by oral route. The biological activity shows a strong dependence on the size and the nature of the steroidal side chain. Pregnane-based trioxanes 8a-f show better activity profile than trioxanes 7a-f and 9b-e, derived from cholesterol and tigogenine, respectively.
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Affiliation(s)
- Chandan Singh
- Division of Medicinal and Process Chemistry, Central Drug Research Institute, Lucknow 226001, India.
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25
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Givelet C, Bernat V, Danel M, André-Barrès C, Vial H. New Amino Endoperoxides Belonging to the Antimalarial G-Factor Series. European J Org Chem 2007. [DOI: 10.1002/ejoc.200700086] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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26
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Abstract
Diseases caused by tropical parasites affect hundreds of millions of people worldwide but have been largely neglected for drug development because they affect poor people in poor regions of the world. Most of the current drugs used to treat these diseases are decades old and have many limitations, including the emergence of drug resistance. This review will summarize efforts to reinvigorate the drug development pipeline for these diseases, which is driven in large part by support from major philanthropies. The organisms responsible for these diseases have a fascinating biology, and many potential biochemical targets are now apparent. These neglected diseases present unique challenges to drug development that are being addressed by new consortia of scientists from academia and industry.
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Affiliation(s)
- Adam R Renslo
- Department of Pharmaceutical Chemistry and the Small Molecule Discovery Center, University of California-San Francisco, San Francisco, CA 94158, USA
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27
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Amewu R, Stachulski AV, Berry NG, Ward SA, Davies J, Labat G, Rossignol JF, O'Neill PM. Synthesis of 1,2,4-trioxepanes via application of thiol-olefin Co-oxygenation methodology. Bioorg Med Chem Lett 2006; 16:6124-30. [PMID: 16978862 DOI: 10.1016/j.bmcl.2006.08.098] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2006] [Revised: 08/24/2006] [Accepted: 08/25/2006] [Indexed: 11/28/2022]
Abstract
Thiol-olefin co-oxygenation (TOCO) of substituted allylic alcohols generates beta-hydroxy peroxides that can be condensed in situ with various ketones, to afford a series of functionalised 1,2,4-trioxepanes in good yields. Manipulation of the phenylsulfenyl group in 8a-8c allows for convenient modification to the spiro-trioxepane substituents. Surprisingly, and in contrast to the 1,2,4-trioxanes examined, 1,2,4-trioxepanes are inactive as antimalarials up to 1000 nM and we rationalize this observation based on the inherent stability of these systems to ferrous mediated degradation. FMO calculations clearly show that the sigma* orbital of the peroxide moiety of 1,2,4-trioxane derivatives 4a and 14b are lower in energy and more accessible to attack by Fe(II) compared to their trioxepane analogues 8b and 9b.
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Affiliation(s)
- Richard Amewu
- Department of Chemistry, University of Liverpool, PO Box 147, Liverpool L69 3BX, UK
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28
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Singh C, Pandey S, Saxena G, Srivastava N, Sharma M. Synthesis of 1,2,4-Trioxepanes and 1,2,4-Trioxocanes via Photooxygenation of Homoallylic Alcohols1. J Org Chem 2006; 71:9057-61. [PMID: 17109530 DOI: 10.1021/jo061414z] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Homoallylic alcohols 4a-d, easily accessible in two steps from cyclopropyl methyl ketone, underwent a highly regioselective reaction with singlet oxygen to yield gamma-hydroxyhydroperoxides 5a-d in 57-72% yield. Acid-catalyzed reaction of 5a-d with acetone, cyclopentanone, and cyclohexanone furnished 1,2,4-trioxepanes 8a-d, 9a-d, and 10a-d in good yields. Homoallylic alcohol 12 also underwent a highly regioselective photooxygenation to yield gamma-hydroxyhydroperoxide 13 in 67% yield, which on reaction with acetone, cyclopentanone, and cyclohexanone, furnished 1,2,4-trioxocanes 16-18 in 41-55% yield.
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Affiliation(s)
- Chandan Singh
- Division of Medicinal and Process Chemistry, Central Drug Research Institute, Lucknow-226001, India.
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29
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Amewu R, Stachulski AV, Ward SA, Berry NG, Bray PG, Davies J, Labat G, Vivas L, O'Neill PM. Design and synthesis of orally active dispiro 1,2,4,5-tetraoxanes; synthetic antimalarials with superior activity to artemisinin. Org Biomol Chem 2006; 4:4431-6. [PMID: 17268634 DOI: 10.1039/b613565j] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Unsymmetrical dispiro- and spirotetraoxanes have been designed and synthesized via acid-catalyzed cyclocondensation of bis(hydroperoxides) with ketones. Incorporation of water-soluble and polar functionalities, via reductive amination and amide bond formation, produces several analogues with low nanomolar in vitro antimalarial activity. Several analogues display an unprecedented level of oral antimalarial activity for this class of endoperoxide drug.
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Affiliation(s)
- Richard Amewu
- Department of Chemistry, University of Liverpool, PO Box 147, Liverpool, UK L69 3BX
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