1
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Chiu WJ, Chu TY, Barve IJ, Sun CM. Pd(II)-Catalyzed [5 + 2] Cyclization of N-Triflyl Aryl Indoles and α,γ-Substituted Allenoates: A Route to Indole-Fused Benzodiazepines. Org Lett 2023; 25:6246-6250. [PMID: 37590129 DOI: 10.1021/acs.orglett.3c01739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/19/2023]
Abstract
A Pd(II)-catalyzed [5 + 2] annulation between N-triflyl aryl indoles and α,γ-substituted allenoates for the synthesis of indole-fused benzodiazepines is reported. This protocol is highly efficient when N-acetylated valine amino acid and DMSO have been used as ligand and cosolvent, respectively. The substrate scope can be further extended to disubstituted allenoates. A reaction mechanism has been proposed based on the mechanistic studies. Mechanistically, the N-acetylated valine amino acid ligand accelerates C-H activation of the C(sp2)-H bond. Consequent cyclopalladation leads to the formation of a six-membered palladacycle. Subsequent coordination and migratory insertion of an allenoate forms the possible eight-membered intermediate. Reductive elimination followed by a [1,3]-H shift results in the indole-fused benzodiazepines.
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Affiliation(s)
- Wei-Jung Chiu
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu 300-10, Taiwan
| | - Ting-Yen Chu
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu 300-10, Taiwan
| | - Indrajeet J Barve
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu 300-10, Taiwan
- Department of Chemistry, MES Abasaheb Garware College, Pune 411004, India
| | - Chung-Ming Sun
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu 300-10, Taiwan
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807-08, Taiwan
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2
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Gulledge Z, Tedder ML, Lyons KR, Carrick JD. Synthesis of Tridentate [1,2,4] Triazinyl-Pyridin-2-yl Indole Lewis Basic Complexants via Pd-Catalyzed Suzuki-Miyaura Cross-Coupling. ACS OMEGA 2019; 4:18855-18866. [PMID: 31737847 PMCID: PMC6854830 DOI: 10.1021/acsomega.9b02891] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Accepted: 10/14/2019] [Indexed: 06/10/2023]
Abstract
Full closure of the nuclear fuel cycle is predicated, in part, on defining efficient separations processes for the effective speciation of the neutron-absorbing lanthanides from the minor actinides post-PUREX. Pursuant to the aforementioned, a class of tridentate, Lewis basic procomplexants have been prepared leveraging a Pd-catalyzed Suzuki-Miyaura cross-coupling between 6-bromo-[1,2,4]-triazinylpyridine derivatives and various protected indole-boronic acids to afford functionalized 2-[6-(5,6-diphenyl-[1,2,4]triazin-3-yl)-pyridin-2-yl]-1H-indoles. A highly active catalyst/ligand system with low loadings was employed rapidly affording 26 examples in yields as high as 85%. Method optimization, substrate and indole scope, comparative analysis between coupling reagents, and a scale-up experiment are reported.
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3
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Gour J, Gatadi S, Pooladanda V, Ghouse SM, Malasala S, Madhavi YV, Godugu C, Nanduri S. Facile synthesis of 1,2,3-triazole-fused indolo- and pyrrolo[1,4]diazepines, DNA-binding and evaluation of their anticancer activity. Bioorg Chem 2019; 93:103306. [PMID: 31586710 DOI: 10.1016/j.bioorg.2019.103306] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 09/17/2019] [Accepted: 09/19/2019] [Indexed: 12/09/2022]
Abstract
A facile synthetic strategy has been developed for the generation of structurally diverse N-fused heterocycles. The formation of fused 1,2,3-triazole indolo and pyrrolodiazepines proceeds through an initial Knoevenagel condensation followed by intramolecular azide-alkyne cycloaddition reaction at room temperature without recourse to the traditional Cu(I)-catalyzed azide-alkyne cycloadditions. The synthesized compounds were evaluated for their in vitro anti-cancer activity against the NCI 60 cell line panel. Among the tested compounds, 3a and 3h were found to exhibit potent inhibitory activity against many of the cell lines. Cell cycle analysis indicated that the compounds inhibit the cell cycle at sub G1 phase. The DNA- nano drop method, viscosity experiment and docking studies suggested these compounds possess DNA binding affinity.
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Affiliation(s)
- Jitendra Gour
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
| | - Srikanth Gatadi
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
| | - Venkatesh Pooladanda
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
| | - Shaik Mahammad Ghouse
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
| | - Satyaveni Malasala
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
| | - Y V Madhavi
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
| | - Chandraiah Godugu
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
| | - Srinivas Nanduri
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India.
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4
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Wu YJ, Venables B, Guernon J, Chen J, Sit SY, Rajamani R, Knox RJ, Matchett M, Pieschl RL, Herrington J, Bristow LJ, Meanwell NA, Thompson LA, Dzierba C. Discovery of new indole-based acylsulfonamide Na v1.7 inhibitors. Bioorg Med Chem Lett 2018; 29:659-663. [PMID: 30638874 DOI: 10.1016/j.bmcl.2018.12.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 12/03/2018] [Accepted: 12/05/2018] [Indexed: 01/05/2023]
Abstract
Screening of 100 acylsulfonamides from the Bristol-Myers Squibb compound collection identified the C3-cyclohexyl indole 6 as a potent Nav1.7 inhibitor. Replacement of the C2 furanyl ring of 6 with a heteroaryl moiety or truncation of this group led to the identification of 4 analogs with hNav1.7 IC50 values under 50 nM. Fluorine substitution of the truncated compound 12 led to 34 with improved potency and isoform selectivity. The inverted indole 36 also maintained good activity. Both 34 and 36 exhibited favorable CYP inhibition profiles, good membrane permeability and a low efflux ratio and, therefore, represent new leads in the search for potent and selective Nav1.7 inhibitors to treat pain.
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Affiliation(s)
- Yong-Jin Wu
- Bristol-Myers Squibb Research and Development, 5 Research Parkway, Wallingford, CT 06492-7660, USA.
| | - Brian Venables
- Bristol-Myers Squibb Research and Development, 5 Research Parkway, Wallingford, CT 06492-7660, USA
| | - Jason Guernon
- Bristol-Myers Squibb Research and Development, 5 Research Parkway, Wallingford, CT 06492-7660, USA
| | - Jie Chen
- Bristol-Myers Squibb Research and Development, 5 Research Parkway, Wallingford, CT 06492-7660, USA
| | - Sing-Yuen Sit
- Bristol-Myers Squibb Research and Development, 5 Research Parkway, Wallingford, CT 06492-7660, USA
| | - Ramkumar Rajamani
- Bristol-Myers Squibb Research and Development, 5 Research Parkway, Wallingford, CT 06492-7660, USA
| | - Ronald J Knox
- Bristol-Myers Squibb Research and Development, 5 Research Parkway, Wallingford, CT 06492-7660, USA
| | - Michele Matchett
- Bristol-Myers Squibb Research and Development, 5 Research Parkway, Wallingford, CT 06492-7660, USA
| | - Rick L Pieschl
- Bristol-Myers Squibb Research and Development, 5 Research Parkway, Wallingford, CT 06492-7660, USA
| | - James Herrington
- Bristol-Myers Squibb Research and Development, 5 Research Parkway, Wallingford, CT 06492-7660, USA
| | - Linda J Bristow
- Bristol-Myers Squibb Research and Development, 5 Research Parkway, Wallingford, CT 06492-7660, USA
| | - Nicholas A Meanwell
- Bristol-Myers Squibb Research and Development, 5 Research Parkway, Wallingford, CT 06492-7660, USA
| | - Lorin A Thompson
- Bristol-Myers Squibb Research and Development, 5 Research Parkway, Wallingford, CT 06492-7660, USA
| | - Carolyn Dzierba
- Bristol-Myers Squibb Research and Development, 5 Research Parkway, Wallingford, CT 06492-7660, USA
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5
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6
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Li Y, Meng JP, Lei J, Chen ZZ, Tang DY, Zhu J, Zhang J, Xu ZG. Efficient Synthesis of Fused Oxazepino-isoquinoline Scaffolds via an Ugi, Followed by an Intramolecular Cyclization. ACS COMBINATORIAL SCIENCE 2017; 19:324-330. [PMID: 28271876 DOI: 10.1021/acscombsci.7b00002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A mild and efficient protocol was developed for the synthesis of oxazepino-isoquinolines via a one-pot Ugi four-component reaction, followed by the intramolecular addition of the resulting alcohol to an alkyne moiety under microwave irradiation conditions. Notably, this process only required one purification step, providing facile access to two series of complex and potentially interesting biologically active scaffolds.
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Affiliation(s)
- Yong Li
- Chongqing
Engineering Laboratory of Targeted and Innovative Therapeutics, Chongqing
Key Laboratory of Kinase Modulators as Innovative Medicine, IATTI, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan, Chongqing 402160, China
- Key
Laboratory for Asymmetric Synthesis and Chiral Technology of Sichuan
Province, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences. Chengdu 610041, China
| | - Jiang-Ping Meng
- Chongqing
Engineering Laboratory of Targeted and Innovative Therapeutics, Chongqing
Key Laboratory of Kinase Modulators as Innovative Medicine, IATTI, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan, Chongqing 402160, China
| | - Jie Lei
- Chongqing
Engineering Laboratory of Targeted and Innovative Therapeutics, Chongqing
Key Laboratory of Kinase Modulators as Innovative Medicine, IATTI, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan, Chongqing 402160, China
- Key
Laboratory for Asymmetric Synthesis and Chiral Technology of Sichuan
Province, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences. Chengdu 610041, China
| | - Zhong-Zhu Chen
- Chongqing
Engineering Laboratory of Targeted and Innovative Therapeutics, Chongqing
Key Laboratory of Kinase Modulators as Innovative Medicine, IATTI, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan, Chongqing 402160, China
| | - Dian-Yong Tang
- Chongqing
Engineering Laboratory of Targeted and Innovative Therapeutics, Chongqing
Key Laboratory of Kinase Modulators as Innovative Medicine, IATTI, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan, Chongqing 402160, China
| | - Jin Zhu
- Chongqing
Engineering Laboratory of Targeted and Innovative Therapeutics, Chongqing
Key Laboratory of Kinase Modulators as Innovative Medicine, IATTI, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan, Chongqing 402160, China
- Key
Laboratory for Asymmetric Synthesis and Chiral Technology of Sichuan
Province, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences. Chengdu 610041, China
| | - Jin Zhang
- Chongqing
Engineering Laboratory of Targeted and Innovative Therapeutics, Chongqing
Key Laboratory of Kinase Modulators as Innovative Medicine, IATTI, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan, Chongqing 402160, China
| | - Zhi-Gang Xu
- Chongqing
Engineering Laboratory of Targeted and Innovative Therapeutics, Chongqing
Key Laboratory of Kinase Modulators as Innovative Medicine, IATTI, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan, Chongqing 402160, China
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7
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Shibata T, Baba T, Takano H, Kanyiva KS. Intramolecular C−H Alkenylation of N
-Alkynylindoles: Exo
and Endo
Selective Cyclization According to the Choice of Metal Catalyst. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700107] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Takanori Shibata
- Department of Chemistry and Biochemistry; School of Advanced Science and Engineering; Waseda University; Shinjuku Tokyo 169-8555 Japan
- JST; ACT-C; 4-1-8 Honcho, Kawaguchi Saitama 332-0012 Japan
| | - Takumi Baba
- Department of Chemistry and Biochemistry; School of Advanced Science and Engineering; Waseda University; Shinjuku Tokyo 169-8555 Japan
| | - Hideaki Takano
- Department of Chemistry and Biochemistry; School of Advanced Science and Engineering; Waseda University; Shinjuku Tokyo 169-8555 Japan
| | - Kyalo Stephen Kanyiva
- International Center for Science and Engineering Program (ICSEP); Waseda University; 3-4-1 Okubo, Shinjuku Tokyo 169-8555 Japan
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8
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Xu J, Li Y, Meng JP, Lei J, Chen ZZ, Tang DY, Zhu J, Xu ZG. Efficient microwave-assisted synthesis of fused benzoxazepine–isoquinoline derivatives via an Ugi reaction/tautomerization/intramolecular SNAr reaction sequence. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.03.036] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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9
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Almond-Thynne J, Blakemore DC, Pryde DC, Spivey AC. Site-selective Suzuki-Miyaura coupling of heteroaryl halides - understanding the trends for pharmaceutically important classes. Chem Sci 2017; 8:40-62. [PMID: 28451148 PMCID: PMC5304707 DOI: 10.1039/c6sc02118b] [Citation(s) in RCA: 114] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Accepted: 08/04/2016] [Indexed: 12/22/2022] Open
Abstract
Suzuki-Miyaura cross-coupling reactions of heteroaryl polyhalides with aryl boronates are surveyed. Drawing on data from literature sources as well as bespoke searches of Pfizer's global chemistry RKB and CAS Scifinder® databases, the factors that determine the site-selectivity of these reactions are discussed with a view to rationalising the trends found.
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Affiliation(s)
- Joshua Almond-Thynne
- Department of Chemistry , Imperial College London , South Kensington Campus , London , SW& 2AZ , UK .
| | - David C Blakemore
- Pfizer Worldwide Medicinal Chemistry , The Portway Building, Granta Park, Great Abington , Cambridge , CB21 6GS , UK
| | - David C Pryde
- Pfizer Worldwide Medicinal Chemistry , The Portway Building, Granta Park, Great Abington , Cambridge , CB21 6GS , UK
| | - Alan C Spivey
- Department of Chemistry , Imperial College London , South Kensington Campus , London , SW& 2AZ , UK .
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10
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Wang TT, Zhao L, Zhang YJ, Liao WW. Pd-Catalyzed Intramolecular Cyclization via Direct C–H Addition to Nitriles: Skeletal Diverse Synthesis of Fused Polycyclic Indoles. Org Lett 2016; 18:5002-5005. [DOI: 10.1021/acs.orglett.6b02460] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Ting-Ting Wang
- College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Lang Zhao
- College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Yan-Jing Zhang
- College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Wei-Wei Liao
- College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China
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11
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Meanwell NA. 2015 Philip S. Portoghese Medicinal Chemistry Lectureship. Curing Hepatitis C Virus Infection with Direct-Acting Antiviral Agents: The Arc of a Medicinal Chemistry Triumph. J Med Chem 2016; 59:7311-51. [PMID: 27501244 DOI: 10.1021/acs.jmedchem.6b00915] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The development of direct-acting antiviral agents that can cure a chronic hepatitis C virus (HCV) infection after 8-12 weeks of daily, well-tolerated therapy has revolutionized the treatment of this insidious disease. In this article, three of Bristol-Myers Squibb's HCV programs are summarized, each of which produced a clinical candidate: the NS3 protease inhibitor asunaprevir (64), marketed as Sunvepra, the NS5A replication complex inhibitor daclatasvir (117), marketed as Daklinza, and the allosteric NS5B polymerase inhibitor beclabuvir (142), which is in late stage clinical studies. A clinical study with 64 and 117 established for the first time that a chronic HCV infection could be cured by treatment with direct-acting antiviral agents alone in the absence of interferon. The development of small molecule HCV therapeutics, designed by medicinal chemists, has been hailed as "the arc of a medical triumph" but may equally well be described as "the arc of a medicinal chemistry triumph".
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Affiliation(s)
- Nicholas A Meanwell
- Department of Discovery Chemistry, Bristol-Myers Squibb Research & Development , Wallingford, Connecticut 06492, United States
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12
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Wei Y, Li J, Qing J, Huang M, Wu M, Gao F, Li D, Hong Z, Kong L, Huang W, Lin J. Discovery of Novel Hepatitis C Virus NS5B Polymerase Inhibitors by Combining Random Forest, Multiple e-Pharmacophore Modeling and Docking. PLoS One 2016; 11:e0148181. [PMID: 26845440 PMCID: PMC4742222 DOI: 10.1371/journal.pone.0148181] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Accepted: 01/14/2016] [Indexed: 02/07/2023] Open
Abstract
The NS5B polymerase is one of the most attractive targets for developing new drugs to block Hepatitis C virus (HCV) infection. We describe the discovery of novel potent HCV NS5B polymerase inhibitors by employing a virtual screening (VS) approach, which is based on random forest (RB-VS), e-pharmacophore (PB-VS), and docking (DB-VS) methods. In the RB-VS stage, after feature selection, a model with 16 descriptors was used. In the PB-VS stage, six energy-based pharmacophore (e-pharmacophore) models from different crystal structures of the NS5B polymerase with ligands binding at the palm I, thumb I and thumb II regions were used. In the DB-VS stage, the Glide SP and XP docking protocols with default parameters were employed. In the virtual screening approach, the RB-VS, PB-VS and DB-VS methods were applied in increasing order of complexity to screen the InterBioScreen database. From the final hits, we selected 5 compounds for further anti-HCV activity and cellular cytotoxicity assay. All 5 compounds were found to inhibit NS5B polymerase with IC50 values of 2.01-23.84 μM and displayed anti-HCV activities with EC50 values ranging from 1.61 to 21.88 μM, and all compounds displayed no cellular cytotoxicity (CC50 > 100 μM) except compound N2, which displayed weak cytotoxicity with a CC50 value of 51.3 μM. The hit compound N2 had the best antiviral activity against HCV, with a selective index of 32.1. The 5 hit compounds with new scaffolds could potentially serve as NS5B polymerase inhibitors through further optimization and development.
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Affiliation(s)
- Yu Wei
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, 300071, China
| | - Jinlong Li
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, 300071, China
- High-Throughput Molecular Drug Discovery Center, Tianjin Joint Academy of Biomedicine and Technology, Tianjin, 300457, China
| | - Jie Qing
- Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Mingjie Huang
- College of Bioscience and Engineering, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Ming Wu
- Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Fenghua Gao
- Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Dongmei Li
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, 300071, China
| | - Zhangyong Hong
- College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Lingbao Kong
- College of Bioscience and Engineering, Jiangxi Agricultural University, Nanchang, 330045, China
- * E-mail: (JPL); (WH); (LK)
| | - Weiqiang Huang
- PracticaChem-China, Tianjin, 300192, PR China
- * E-mail: (JPL); (WH); (LK)
| | - Jianping Lin
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, 300071, China
- High-Throughput Molecular Drug Discovery Center, Tianjin Joint Academy of Biomedicine and Technology, Tianjin, 300457, China
- * E-mail: (JPL); (WH); (LK)
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13
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Zhao C, Wang Y, Ma S. Recent advances on the synthesis of hepatitis C virus NS5B RNA-dependent RNA-polymerase inhibitors. Eur J Med Chem 2015; 102:188-214. [PMID: 26276434 DOI: 10.1016/j.ejmech.2015.07.046] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Revised: 07/23/2015] [Accepted: 07/28/2015] [Indexed: 02/07/2023]
Abstract
Hepatitis C is a viral liver infection considered as the major cause of cirrhosis and hepatocellular carcinoma (HCC). The HCV NS5B polymerase, an RNA-dependent RNA polymerase, is essential for HCV replication, which is able to catalyze the synthesis of positive (genomic) and negative (template) strand HCV RNA, but has no functional equivalent in mammalian cells. Therefore, the NS5B polymerase has emerged as an attractive target for the development of specifically targeted antiviral therapy for HCV (DAA, for direct-acting antivirals). Recently, a growing number of compounds have been reported as the NS5B polymerase inhibitors, some of which especially have been licensed in clinical trials. This review describes recent advances on the synthesis of the NS5B polymerase inhibitors, focusing on the merits and demerits of their synthetic methods. In particular, inspiration from the synthesis and the future direction of the NS5B polymerase inhibitors are highlighted.
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Affiliation(s)
- Can Zhao
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, 44 West Culture Road, Jinan 250012, PR China
| | - Yinhu Wang
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, 44 West Culture Road, Jinan 250012, PR China
| | - Shutao Ma
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, 44 West Culture Road, Jinan 250012, PR China.
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14
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Giacinto P, Cera G, Bottoni A, Bandini M, Miscione GP. DFT Mechanistic Investigation of the Gold(I)-Catalyzed Synthesis of Azepino[1,2-a]indoles. ChemCatChem 2015. [DOI: 10.1002/cctc.201500429] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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15
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A practical and efficient synthesis of 6-carboalkoxy-13-cycloalkyl-5H-indolo[2,1-a][2]benzazepine-10-carboxylic acid derivatives. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2013.12.085] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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16
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Gentles RG, Ding M, Bender JA, Bergstrom CP, Grant-Young K, Hewawasam P, Hudyma T, Martin S, Nickel A, Regueiro-Ren A, Tu Y, Yang Z, Yeung KS, Zheng X, Chao S, Sun JH, Beno BR, Camac DM, Chang CH, Gao M, Morin PE, Sheriff S, Tredup J, Wan J, Witmer MR, Xie D, Hanumegowda U, Knipe J, Mosure K, Santone KS, Parker DD, Zhuo X, Lemm J, Liu M, Pelosi L, Rigat K, Voss S, Wang Y, Wang YK, Colonno RJ, Gao M, Roberts SB, Gao Q, Ng A, Meanwell NA, Kadow JF. Discovery and preclinical characterization of the cyclopropylindolobenzazepine BMS-791325, a potent allosteric inhibitor of the hepatitis C virus NS5B polymerase. J Med Chem 2014; 57:1855-79. [PMID: 24397558 DOI: 10.1021/jm4016894] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Described herein are structure-activity relationship studies that resulted in the optimization of the activity of members of a class of cyclopropyl-fused indolobenzazepine HCV NS5B polymerase inhibitors. Subsequent iterations of analogue design and syntheses successfully addressed off-target activities, most notably human pregnane X receptor (hPXR) transactivation, and led to significant improvements in the physicochemical properties of lead compounds. Those analogues exhibiting improved solubility and membrane permeability were shown to have notably enhanced pharmacokinetic profiles. Additionally, a series of alkyl bridged piperazine carboxamides was identified as being of particular interest, and from which the compound BMS-791325 (2) was found to have distinguishing antiviral, safety, and pharmacokinetic properties that resulted in its selection for clinical evaluation.
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Affiliation(s)
- Robert G Gentles
- Discovery Chemistry, ‡Molecular Discovery Technologies, Molecular Structure & Design, §Molecular Discovery Technologies, Protein Science, ∥Pharmaceutical Candidate Optimization, ⊥Discovery Virology, Disease Sciences and Biologics, #Leads Discovery and Optimization, ▽Materials Science, Drug Product Science and Technology, Bristol-Myers Squibb Research and Development , 5 Research Parkway, Wallingford, Connecticut 06492, United States
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Zhou Q, Zhang B, Su L, Jiang T, Chen R, Du T, Ye Y, Shen J, Dai G, Han D, Jiang H. Palladium-catalyzed highly regioselective 2-arylation of 2,x-dibromopyridines and its application in the efficient synthesis of a 17β-HSD1 inhibitor. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.10.065] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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18
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Chiarucci M, Matteucci E, Cera G, Fabrizi G, Bandini M. New Entry to Polycyclic Fused Indoles via Gold(I)-catalyzed Cascade Reaction. Chem Asian J 2013; 8:1776-9. [DOI: 10.1002/asia.201201249] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2012] [Indexed: 11/09/2022]
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Cera G, Piscitelli S, Chiarucci M, Fabrizi G, Goggiamani A, Ramón RS, Nolan SP, Bandini M. One-Pot Gold-Catalyzed Synthesis of Azepino[1,2-a]indoles. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201205463] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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20
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Cera G, Piscitelli S, Chiarucci M, Fabrizi G, Goggiamani A, Ramón RS, Nolan SP, Bandini M. One-Pot Gold-Catalyzed Synthesis of Azepino[1,2-a]indoles. Angew Chem Int Ed Engl 2012; 51:9891-5. [DOI: 10.1002/anie.201205463] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2012] [Indexed: 11/11/2022]
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Haudecoeur R, Peuchmaur M, Ahmed-Belkacem A, Pawlotsky JM, Boumendjel A. Structure-Activity Relationships in the Development of Allosteric Hepatitis C Virus RNA-Dependent RNA Polymerase Inhibitors: Ten Years of Research. Med Res Rev 2012; 33:934-84. [DOI: 10.1002/med.21271] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Romain Haudecoeur
- Département de Pharmacochimie Moléculaire; Université de Grenoble/CNRS; UMR 5063, BP 53; 38041; Grenoble Cedex 9; France
| | - Marine Peuchmaur
- Département de Pharmacochimie Moléculaire; Université de Grenoble/CNRS; UMR 5063, BP 53; 38041; Grenoble Cedex 9; France
| | | | | | - Ahcène Boumendjel
- Département de Pharmacochimie Moléculaire; Université de Grenoble/CNRS; UMR 5063, BP 53; 38041; Grenoble Cedex 9; France
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Ding M, He F, Hudyma TW, Zheng X, Poss MA, Kadow JF, Beno BR, Rigat KL, Wang YK, Fridell RA, Lemm JA, Qiu D, Liu M, Voss S, Pelosi LA, Roberts SB, Gao M, Knipe J, Gentles RG. Synthesis and SAR studies of novel heteroaryl fused tetracyclic indole-diamide compounds: Potent allosteric inhibitors of the hepatitis C virus NS5B polymerase. Bioorg Med Chem Lett 2012; 22:2866-71. [DOI: 10.1016/j.bmcl.2012.02.063] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2012] [Accepted: 02/21/2012] [Indexed: 11/15/2022]
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Palladium-catalyzed synthesis of benzo[c]pyrimido[1,6-a]azepine scaffold from Morita–Baylis–Hillman adducts: intramolecular 6-arylation of uracil nucleus. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2011.11.085] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Ryan JH, Hyland C, Meyer AG, Smith JA, Yin J. Seven-Membered Rings. PROGRESS IN HETEROCYCLIC CHEMISTRY 2012. [DOI: 10.1016/b978-0-08-096807-0.00016-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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