1
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Wang S, Zhong C, Li F, Ding Z, Tang Y, Li W. Design, synthesis, and structure-activity relationship study of novel plinabulin derivatives as anti-tumor agents based on the co-crystal structure. Mol Divers 2024:10.1007/s11030-024-10835-7. [PMID: 38652366 DOI: 10.1007/s11030-024-10835-7] [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: 01/30/2024] [Accepted: 03/04/2024] [Indexed: 04/25/2024]
Abstract
Plinabulin, a 2, 5-diketopiperazine-type tubulin inhibitor derived from marine natural products, is currently undergoing Phase III clinical trials for the treatment of non-small cell lung cancer (NSCLC) and chemotherapy-induced neutropenia (CIN). To obtain novel 2, 5-diketopiperazine derivatives with higher biological activity, we designed and synthesized two series of 37 plinabulin derivatives at the C-ring, based on the co-crystal structure of compound 1 and tubulin. Their structures were characterized using NMR and HRMS. All compounds were screened in vitro using the lung cancer cell line NCI-H460 using the MTT method, and the compounds with better activity were further screened in BxPC-3 and HT-29 cells. The compounds 16c (IC50 = 2.0, NCI-H460; IC50 = 1.2 nM, BxPC-3; IC50 = 1.97 nM, HT-29) and 26r (IC50 = 0.96, NCI-H460; IC50 = 0.66 nM, BxPC-3; IC50 = 0.61 nM, HT-29) had the best activity. The cytotoxic activity of compound 26r against various tumor cell lines occurred at less than 1 nM.
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Affiliation(s)
- Shixiao Wang
- School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
- Shenzhen Huahong Marine Biomedical Co., Ltd., Shenzhen, 518002, China
| | - Changjiang Zhong
- School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
| | - Feifei Li
- Shenzhen Huahong Marine Biomedical Co., Ltd., Shenzhen, 518002, China
| | - Zhongpeng Ding
- Shenzhen Huahong Marine Biomedical Co., Ltd., Shenzhen, 518002, China.
- Medical College, Linyi University, Shuangling Road, Linyi, 276000, China.
| | - Yu Tang
- School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China.
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China.
| | - Wenbao Li
- Shenzhen Huahong Marine Biomedical Co., Ltd., Shenzhen, 518002, China.
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2
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Goher SS, Abdrabo WS, Veerakanellore GB, Elgendy B. 2,5-Diketopiperazines (DKPs): Promising Scaffolds for Anticancer Agents. Curr Pharm Des 2024; 30:597-623. [PMID: 38343054 DOI: 10.2174/0113816128291798240201112916] [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: 11/07/2023] [Accepted: 01/22/2024] [Indexed: 05/25/2024]
Abstract
2,5-Diketopiperazine (2,5-DKP) derivatives represent a family of secondary metabolites widely produced by bacteria, fungi, plants, animals, and marine organisms. Many natural products with DKP scaffolds exhibited various pharmacological activities such as antiviral, antifungal, antibacterial, and antitumor. 2,5-DKPs are recognized as privileged structures in medicinal chemistry, and compounds that incorporate the 2,5-DKP scaffold have been extensively investigated for their anticancer properties. This review is a thorough update on the anti-cancer activity of natural and synthesized 2,5-DKPs from 1997 to 2022. We have explored various aspects of 2,5-DKPs modifications and summarized their structure-activity relationships (SARs) to gain insight into their anticancer activities. We have also highlighted the novel approaches to enhance the specificity and pharmacokinetics of 2,5-DKP-based anticancer agents.
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Affiliation(s)
- Shaimaa S Goher
- Chemistry Department, Faculty of Science, Benha University, Benha 13518, Egypt
- Nanotechnology Research Centre (NTRC), The British University in Egypt (BUE), Suez Desert Road, El Sherouk City, Cairo 1183, Egypt
| | - Wessam S Abdrabo
- Chemistry Department, Faculty of Science, Benha University, Benha 13518, Egypt
| | - Giri Babu Veerakanellore
- Center for Clinical Pharmacology, Washington University School of Medicine and University of Health Sciences and Pharmacy, St. Louis, Missouri 63110, United States
- Department of Anesthesiology, Washington University School of Medicine in St. Louis, St. Louis, Missouri 63110, United States
| | - Bahaa Elgendy
- Chemistry Department, Faculty of Science, Benha University, Benha 13518, Egypt
- Center for Clinical Pharmacology, Washington University School of Medicine and University of Health Sciences and Pharmacy, St. Louis, Missouri 63110, United States
- Department of Anesthesiology, Washington University School of Medicine in St. Louis, St. Louis, Missouri 63110, United States
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3
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Zhang Z, Wang H, Zheng J, Yu X, Liu F, Zhao J, Liu Y, Zhang M, Xia C, Cao J. Electrochemical Phenyl-Carbonyl Coupling Reaction of Aromatic Aldehydes or Ketones. J Org Chem 2023; 88:15687-15695. [PMID: 37918975 DOI: 10.1021/acs.joc.3c01677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2023]
Abstract
An electrochemical phenyl-carbonyl coupling reaction of aromatic aldehydes or ketones to synthesize 4-(hydroxy(phenyl)methyl)benzaldehyde derivatives has been developed. The method shows high chemoselectivity, broad functional group compatibility, atom economy, and environmental benignity and has good potential applicability.
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Affiliation(s)
- Zenghui Zhang
- Institute of Pharmacology, Pharmacy College, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 271016, P. R. China
| | - Haiyang Wang
- Institute of Pharmacology, Pharmacy College, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 271016, P. R. China
- State Key Laboratory Base for Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Jinhua Zheng
- Tai'an Center for Disease Control and Prevention, Tai'an 271000, China
| | - Xiao Yu
- Institute of Pharmacology, Pharmacy College, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 271016, P. R. China
| | - Fusheng Liu
- State Key Laboratory Base for Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Jinbo Zhao
- Institute of Pharmacology, Pharmacy College, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 271016, P. R. China
| | - Yi Liu
- Institute of Pharmacology, Pharmacy College, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 271016, P. R. China
| | - Mei Zhang
- Institute of Pharmacology, Pharmacy College, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 271016, P. R. China
| | - Chengcai Xia
- Institute of Pharmacology, Pharmacy College, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 271016, P. R. China
| | - Juan Cao
- Institute of Pharmacology, Pharmacy College, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 271016, P. R. China
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4
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Fang S, Bi S, Li Y, Tian S, Xu H, Fu L, Wang S, Tang Y, Qiu P. Design, synthesis and anti-tumor evaluation of plinabulin derivatives as potential agents targeting β-tubulin. Bioorg Med Chem Lett 2023; 91:129370. [PMID: 37301522 DOI: 10.1016/j.bmcl.2023.129370] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 05/23/2023] [Accepted: 06/03/2023] [Indexed: 06/12/2023]
Abstract
Plinabulin is a promising microtubule destabilizing agent in phase 3 clinical stage for treating non-small cell lung cancer. However, the high toxicity and the poor water solubility of plinabulin limited its use and more plinabulin derivatives need to be explored. Here, two series of 29 plinabulin derivatives were designed, synthesized and evaluated for their anti-tumor effect against three types of cancer cell lines. Most of derivatives exerted obvious inhibition to the proliferation of the cell lines tested. Among them, compound 11c exerted stronger efficiency than plinabulin, and the reason might be the additional hydrogen bond between the nitrogen atom of the indole ring in compound 11c and Gln134 of β-tubulin. Immunofluorescence assay showed that compound 11c at 10 nM significantly disrupted tubulin structure. Compound 11c also significantly induced G2/M cell cycle arrest and apoptosis in dose dependent manner. These results suggest that compound 11c might be a potential candidate for cancer treatment as antimicrotubule agent.
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Affiliation(s)
- Shiyuan Fang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Yushan Road, Qingdao 266003, China
| | - Shijie Bi
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Yushan Road, Qingdao 266003, China
| | - Yannan Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Yushan Road, Qingdao 266003, China
| | - Shuai Tian
- Marine Biomedical Research Institute of Qingdao, Qingdao 266071, China
| | - Huixin Xu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Yushan Road, Qingdao 266003, China
| | - Lei Fu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Yushan Road, Qingdao 266003, China
| | - Shixiao Wang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Yushan Road, Qingdao 266003, China
| | - Yu Tang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Yushan Road, Qingdao 266003, China; Laboratory for Marine Drugs and Bioproducts Qingdao National Laboratory for Marine Science and Technology Qingdao 266237, China.
| | - Peiju Qiu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Yushan Road, Qingdao 266003, China; Center for Innovation Marine Drug Screening &Evaluation, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China
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5
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Koshizuka M, Shinoda K, Makino K, Shimada N. Concise Synthesis of 2,5-Diketopiperazines via Catalytic Hydroxy-Directed Peptide Bond Formations. J Org Chem 2023. [PMID: 37125993 DOI: 10.1021/acs.joc.3c00195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
2,5-Diketopiperazines (DKPs) with hydroxymethyl functional groups are essential structures found in many bioactive molecules and functional materials. We have established a simple protocol for the concise synthesis of this type of DKPs through diboronic acid anhydride-catalyzed hydroxy-directed peptide bond formations. The sequential reactions in this report, which consist of three steps, an intermolecular catalytic condensation reaction in which water is the only byproduct, a simple deprotection of the nitrogen-protecting group, and an intramolecular cyclization, enabled the synthesis of functionalized DKPs in high to excellent yields without any intermediate purification. The utility of this protocol has been demonstrated by synthesizing natural products, phomamide and Cyclo(Deala-l-Leu).
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Affiliation(s)
- Masayoshi Koshizuka
- Laboratory of Organic Chemistry for Drug Development and Medical Research Laboratories, Department of Pharmaceutical Sciences, Kitasato University, Tokyo 108-8641, Japan
| | - Kaito Shinoda
- Laboratory of Organic Chemistry for Drug Development and Medical Research Laboratories, Department of Pharmaceutical Sciences, Kitasato University, Tokyo 108-8641, Japan
| | - Kazuishi Makino
- Laboratory of Organic Chemistry for Drug Development and Medical Research Laboratories, Department of Pharmaceutical Sciences, Kitasato University, Tokyo 108-8641, Japan
| | - Naoyuki Shimada
- Laboratory of Organic Chemistry for Molecular Transformations, Department of Chemistry and the Institute of Natural Sciences, Nihon University, Tokyo 156-8550, Japan
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6
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Morofuji T, Nagai S, Watanabe A, Inagawa K, Kano N. Streptocyanine as an activation mode of amine catalysis for the conversion of pyridine rings to benzene rings. Chem Sci 2023; 14:485-490. [PMID: 36741523 PMCID: PMC9847661 DOI: 10.1039/d2sc06225a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 12/21/2022] [Indexed: 12/24/2022] Open
Abstract
Amine catalysts have emerged as an invaluable tool in organic synthesis. Iminium, enamine, and enamine radical cation species are representative activation modes of amine catalysis. However, the development of new amine catalysis activation modes that enable novel synthetic strategies remains highly desirable. Herein, we report streptocyanine as a new amine catalysis activation mode, which enables the skeletal editing of pyridine rings to benzene rings. N-Arylation of pyridines bearing an alkenyl substituent at the 3-position generates the corresponding N-arylpyridiniums. The resulting pyridinum reacts with a catalytic amount of piperidine to afford a streptocyanine intermediate. Catalytically generated streptocyanine forms a benzene ring via a ring-closing reaction, thereby releasing the amine catalyst. Consequently, the alkene moiety in the starting pyridines is incorporated into the benzene ring of the products. Pyridiniums bearing various alkene moieties were efficiently converted to formyl-substituted benzene derivatives. Mechanistic studies support the postulation that the present catalytic process was intermediated by streptocyanine. In this reaction system, streptocyanine could be regarded as a new activation mode of amine catalysis.
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Affiliation(s)
- Tatsuya Morofuji
- Department of Chemistry, Faculty of Science, Gakushuin University 1-5-1 Mejiro Toshima-ku Tokyo 171-8588 Japan
| | - Shota Nagai
- Department of Chemistry, Faculty of Science, Gakushuin University 1-5-1 Mejiro Toshima-ku Tokyo 171-8588 Japan
| | - Airi Watanabe
- Department of Chemistry, Faculty of Science, Gakushuin University 1-5-1 Mejiro Toshima-ku Tokyo 171-8588 Japan
| | - Kota Inagawa
- Department of Chemistry, Faculty of Science, Gakushuin University 1-5-1 Mejiro Toshima-ku Tokyo 171-8588 Japan
| | - Naokazu Kano
- Department of Chemistry, Faculty of Science, Gakushuin University 1-5-1 Mejiro Toshima-ku Tokyo 171-8588 Japan
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7
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Non-chelation-assisted Pd-catalysed novel sp3 C H/sp2 C H intermolecular oxidative coupling reaction: one-pot formation of new 5‑benzyl fluorenone. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.154023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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8
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Chinh PT, Tham PT, Quynh DH, Tuyen NV, Van DT, Phuong PT, Thu Hang TT, Van Kiem P. Synthesis and Cytotoxic Activity of Several Novel N-Alkyl-Plinabulin Derivatives With Aryl Group Moieties. Nat Prod Commun 2021. [DOI: 10.1177/1934578x211010040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Seven novel N-alkyl-plinabulin derivatives with aryl groups moieties (nitroquinoline, 1,4-dihydroquinoline, 4-methoxybenzene, and 4-chlorobenzene) have been synthesized via aldol condensation and alkylation in one-pot, and tested for their cytotoxicity against 4 cancer cell lines (KB, HepG2, Lu, and MCF7). Compounds ( Z)−3-((6,8-dimethyl-4-oxo-1,4-dihydroquinolin-2-yl)methylene)−6-(( Z)−4-methoxybenzylidene)−1-(prop-2-yn-1-yl)piperazine-2,5-dione (5a), ( Z)−6-(( Z)−4-methoxybenzylidene)−1-(prop-2-yn-1-yl)−3-((1,6,8-trimethyl-4-oxo-1,4-dihydroquinolin-2-yl)methylene)piperazine-2,5-dione (5b), and ( Z)−3-(( Z)−4-chlorobenzylidene)−1,4-dimethyl-6-((8-methyl-4-nitroquinolin-2-yl)methylene)piperazine-2,5-dione (8) showed strong cytotoxicity against 3 of the cancer cells lines (KB, HepG2 and Lu) with IC50 values ranging from 3.04 to 10.62 µM. The quinoline-derived compounds had higher cytotoxic activity than the benzaldehyde derivatives. The successful synthesis of these derivatives offers useful information for the development of more potent vascular disrupting agents based on plinabulin.
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Affiliation(s)
- Pham The Chinh
- Thai Nguyen University of Sciences, Tan Thinh, Thai Nguyen, Vietnam
| | | | - Duong Huong Quynh
- Thai Nguyen University of Sciences, Tan Thinh, Thai Nguyen, Vietnam
- Institute of Chemistry - VAST, Cau Giay, Hanoi, Vietnam
| | | | - Dinh Thuy Van
- Thai Nguyen University of Sciences, Tan Thinh, Thai Nguyen, Vietnam
- Thai Nguyen University of Education, Thai Nguyen, Vietnam
| | | | | | - Phan Van Kiem
- Institute of Marine Biochemistry-VAST, Cau Giay, Hanoi, Vietnam
- Graduate University of Science and Technology, VAST, Cau Giay, Hanoi, Vietnam
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9
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Ganesher A, Chaturvedi P, Karkara BB, Chatterjee I, Datta D, Panda G. One pot synthesis of N-monoalkylated plinabulin derivatives via multicomponent protocol and their application as anticancer agents. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129830] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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10
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Synthesis and cytotoxic evaluation of novel simplified plinabulin-quinoline derivatives. MENDELEEV COMMUNICATIONS 2021. [DOI: 10.1016/j.mencom.2021.03.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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11
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Jassem AM, Dhumad AM, Almashal FAK. Synthesis of New Drug-Like Piperazine-2,5-diones by the Ugi/Tandem Process Catalyzed by TMSOTf and Their Molecular Docking. RUSS J GEN CHEM+ 2020. [DOI: 10.1134/s1070363220110262] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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12
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Ding Z, Li F, Zhong C, Li F, Liu Y, Wang S, Zhao J, Li W. Structure-based design and synthesis of novel furan-diketopiperazine-type derivatives as potent microtubule inhibitors for treating cancer. Bioorg Med Chem 2020; 28:115435. [PMID: 32278711 DOI: 10.1016/j.bmc.2020.115435] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Revised: 03/10/2020] [Accepted: 03/10/2020] [Indexed: 12/14/2022]
Abstract
Plinabulin, a synthetic analog of the marine natural product "diketopiperazine phenylahistin," displayed depolymerization effects on microtubules and targeted the colchicine site, which has been moved into phase III clinical trials for the treatment of non-small cell lung cancer (NSCLC) and the prevention of chemotherapy-induced neutropenia (CIN). To develop more potent anti-microtubule and cytotoxic derivatives, the co-crystal complexes of plinabulin derivatives were summarized and analyzed. We performed further modifications of the tert-butyl moiety or C-ring of imidazole-type derivatives to build a library of molecules through the introduction of different groups for novel skeletons. Our structure-activity relationship study indicated that compounds 17o (IC50 = 14.0 nM, NCI-H460) and 17p (IC50 = 2.9 nM, NCI-H460) with furan groups exhibited potent cytotoxic activities at the nanomolar level against various human cancer cell lines. In particular, the 5-methyl or methoxymethyl substituent of furan group could replace the alkyl group of imidazole at the 5-position to maintain cytotoxic activity, contradicting previous reports that the tert-butyl moiety at the 5-position of imidazole was essential for the activity of such compounds. Immunofluorescence assay indicated that compounds 17o and 17p could efficiently inhibit microtubule polymerization. Overall, the novel furan-diketopiperazine-type derivatives could be considered as a potential scaffold for the development of anti-cancer drugs.
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Affiliation(s)
- Zhongpeng Ding
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Feifei Li
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Changjiang Zhong
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Feng Li
- Shandong Peninsula Engineering Research Center of Comprehensive Brine Utilization, Weifang University of Science and Technology, Weifang 262700, Shandong, China
| | - Yuqian Liu
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Shixiao Wang
- Marine Biomedical Research Institute of Qingdao, Qingdao 266071, China
| | - Jianchun Zhao
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; Marine Biomedical Research Institute of Qingdao, Qingdao 266071, China
| | - Wenbao Li
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; Innovation Center for Marine Drug Screening and Evaluation, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China; Marine Biomedical Research Institute of Qingdao, Qingdao 266071, China.
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13
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Pandurangan K, Roy B, Rajasekhar K, Suseela YV, Nagendra P, Chaturvedi A, Satwik UR, Murugan NA, Ramamurty U, Govindaraju T. Molecular Architectonics of Cyclic Dipeptide Amphiphiles and Their Application in Drug Delivery. ACS APPLIED BIO MATERIALS 2020; 3:3413-3422. [DOI: 10.1021/acsabm.0c00340] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Komala Pandurangan
- Bioorganic Chemistry Laboratory, New Chemistry Unit and School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bengaluru, Karnataka 560064, India
| | - Bappaditya Roy
- Bioorganic Chemistry Laboratory, New Chemistry Unit and School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bengaluru, Karnataka 560064, India
| | - Kolla Rajasekhar
- Bioorganic Chemistry Laboratory, New Chemistry Unit and School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bengaluru, Karnataka 560064, India
| | - Yelisetty Venkata Suseela
- Bioorganic Chemistry Laboratory, New Chemistry Unit and School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bengaluru, Karnataka 560064, India
| | - Prachitha Nagendra
- Bioorganic Chemistry Laboratory, New Chemistry Unit and School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bengaluru, Karnataka 560064, India
| | - Abhishek Chaturvedi
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Upadrasta R. Satwik
- Bioorganic Chemistry Laboratory, New Chemistry Unit and School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bengaluru, Karnataka 560064, India
| | - N. Arul Murugan
- Division of Theoretical Chemistry and Biology, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, S-106 91 Stockholm, Sweden
| | - Upadrasta Ramamurty
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Thimmaiah Govindaraju
- Bioorganic Chemistry Laboratory, New Chemistry Unit and School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bengaluru, Karnataka 560064, India
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14
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Chen L, Zhao B, Fan Z, Hu M, Li Q, Hu W, Li J, Zhang J. Discovery of Novel Isothiazole, 1,2,3-Thiadiazole, and Thiazole-Based Cinnamamides as Fungicidal Candidates. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:12357-12365. [PMID: 31596575 DOI: 10.1021/acs.jafc.9b03891] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A series of isothiazole, 1,2,3-thiadiazole, and thiazole-based cinnamamide morpholine derivatives were rationally designed, synthesized, characterized, and evaluated for their fungicidal activities. Bioassay indicated that a combination of 3,4-dichloroisothiazole active substructures with cinnamamide morpholine lead to significant improvement of in vivo antifungal activities of the target compounds; among them, compound 5a exhibited good fungicidal activity against Pseudoperonspera cubensis in vivo with an inhibition rate of 100% at 100 μg/mL. A field experiment indicated that the difference of efficacy between 5a (75.9%) and dimethomorph (77.1%) at 37.5 g ai/667 m2 was not significant; and 5a also exhibited good activity against Botrytis cinerea by triggering accumulation of PAL and NPR1 defense-related gene expression and the defense associated enzyme phenylalanine ammonia-lyase (PAL) expression on cucumber, rather than direct inhibition. These findings strongly supported that 3,4-dichloroisothiazole containing cinnamamide morpholine 5a not only showed good fungicidal activity against P. cubensis but also exhibited plant innate immunity stimulation activity as a promising fungicide candidate with both fungicidal activity and systemic acquired resistance.
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Affiliation(s)
- Lai Chen
- College of Plant Protection , Hebei Agricultural University , Baoding 071001 , P. R. China
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , P. R. China
- Biological Control Center of Plant Diseases and Plant Pests of Hebei Province , Baoding 071001 , P. R. China
| | - Bin Zhao
- College of Plant Protection , Hebei Agricultural University , Baoding 071001 , P. R. China
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , P. R. China
| | - Zhijin Fan
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , P. R. China
| | - Mengxu Hu
- College of Plant Protection , Hebei Agricultural University , Baoding 071001 , P. R. China
| | - Qing Li
- College of Life Sciences , Hebei Agricultural University , Baoding 071001 , P. R. China
| | - Wenhao Hu
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , P. R. China
| | - Jiwei Li
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , P. R. China
| | - Jinlin Zhang
- College of Plant Protection , Hebei Agricultural University , Baoding 071001 , P. R. China
- Biological Control Center of Plant Diseases and Plant Pests of Hebei Province , Baoding 071001 , P. R. China
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15
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Ding Z, Ma M, Zhong C, Wang S, Fu Z, Hou Y, Liu Y, Zhong L, Chu Y, Li F, Song C, Wang Y, Yang J, Li W. Development of novel phenoxy-diketopiperazine-type plinabulin derivatives as potent antimicrotubule agents based on the co-crystal structure. Bioorg Med Chem 2019; 28:115186. [PMID: 31759826 DOI: 10.1016/j.bmc.2019.115186] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 10/14/2019] [Accepted: 10/25/2019] [Indexed: 02/05/2023]
Abstract
The co-crystal structure of Compound 6b with tubulin was prepared and solved for indicating the binding mode and for further optimization. Based on the co-crystal structures of tubulin with plinabulin and Compound 6b, a total of 27 novel A/B/C-rings plinabulin derivatives were designed and synthesized. Their biological activities were evaluated against human lung cancer NCI-H460 cell line. The optimum phenoxy-diketopiperazine-type Compound 6o exhibited high potent cytotoxicity (IC50 = 4.0 nM) through SAR study of three series of derivatives, which was more potent than plinabulin (IC50 = 26.2 nM) and similar to Compound 6b (IC50 = 3.8 nM) against human lung cancer NCI-H460 cell line. Subsequently, the Compound 6o was evaluated against other four human cancer cell lines. Both tubulin polymerization assay and immunofluorescence assay showed that Compound 6o could inhibit microtubule polymerization efficiently. Furthermore, theoretical calculation of the physical properties and molecular docking were elucidated for these plinabulin derivatives. The binding mode of Compound 6o was similar to Compound 6b based on the result of molecular docking. The theoretical calculated LogPo/w and PCaco of Compound 6o were better than Compound 6b, which could enhance its cytostatic activity. Therefore, Compound 6o might be developed as a novel potent anti-microtubule agent.
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Affiliation(s)
- Zhongpeng Ding
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Mingxu Ma
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Changjiang Zhong
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Shixiao Wang
- Marine Biomedical Research Institute of Qingdao, Qingdao 266071, China
| | - Zhangyu Fu
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Yingwei Hou
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; Marine Biomedical Research Institute of Qingdao, Qingdao 266071, China
| | - Yuqian Liu
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Lili Zhong
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Yanyan Chu
- Marine Biomedical Research Institute of Qingdao, Qingdao 266071, China
| | - Feng Li
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; Marine Biomedical Research Institute of Qingdao, Qingdao 266071, China
| | - Cai Song
- Shenzhen Institute, Guangdong Ocean University, Shenzhen 518116, China
| | - Yuxi Wang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital of Sichuan University and Collaborative Innovation Center of Biotherapy and Cancer, Chengdu 610041, China
| | - Jinliang Yang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital of Sichuan University and Collaborative Innovation Center of Biotherapy and Cancer, Chengdu 610041, China.
| | - Wenbao Li
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; Innovation Center for Marine Drug Screening and Evaluation, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China; Marine Biomedical Research Institute of Qingdao, Qingdao 266071, China.
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16
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La Sala G, Olieric N, Sharma A, Viti F, de Asis Balaguer Perez F, Huang L, Tonra JR, Lloyd GK, Decherchi S, Díaz JF, Steinmetz MO, Cavalli A. Structure, Thermodynamics, and Kinetics of Plinabulin Binding to Two Tubulin Isotypes. Chem 2019. [DOI: 10.1016/j.chempr.2019.08.022] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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17
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Polymorphs, co-crystal structure and pharmacodynamics study of MBRI-001, a deuterium-substituted plinabulin derivative as a tubulin polymerization inhibitor. Bioorg Med Chem 2019; 27:1836-1844. [PMID: 30910474 DOI: 10.1016/j.bmc.2019.03.035] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 03/09/2019] [Accepted: 03/19/2019] [Indexed: 02/05/2023]
Abstract
MBRI-001, a deuterium-substituted plinabulin derivative, has been reported to have better pharmacokinetic and similar antitumor effects in comparison with plinabulin. In this approach, we further carried out its polymorphs, co-crystal structure of MBRI-001-tubulin and tubulin inhibition study. Among the different polymorphs, Form F (MBRI-001/H2O) was prepared and evaluated, which had better physical stability and suitable process for scale-up production. Co-crystal structure of MBRI-001-tubulin (PDB:5XI5) was prepared and analyzed. The result of tubulin polymerization assay demonstrated that MBRI-001 could inhibit tubulin polymerization which was similar as plinabulin. Subsequently, the anti-proliferative activities of plinabulin and MBRI-001 were evaluated against two different human lung cancer cell lines. In vivo study, MBRI-001 revealed similar antitumor inhibition in comparison with plinabulin in A549 xenograft tumor model. Therefore, we suggested that MBRI-001 could be developed as a promising anti-cancer agent in near future.
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18
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Surana K, Chaudhary B, Diwaker M, Sharma S. Benzophenone: a ubiquitous scaffold in medicinal chemistry. MEDCHEMCOMM 2018; 9:1803-1817. [PMID: 30542530 DOI: 10.1039/c8md00300a] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Accepted: 08/23/2018] [Indexed: 12/21/2022]
Abstract
The benzophenone scaffold represents a ubiquitous structure in medicinal chemistry because it is found in several naturally occurring molecules which exhibit a variety of biological activities, such as anticancer, anti-inflammatory, antimicrobial, and antiviral. In addition, various synthetic benzophenone motifs are present in marketed drugs. They also represent important ingredients in perfumes and can act as photoinitiators. This review will provide an overview of benzophenone moieties with medicinal aspects synthesized in the last 15 years and will cover the most potent molecule in each report. In this review, only benzophenones with substitutions on their aryl rings, i.e. diphenyl ketone analogues, have been covered.
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Affiliation(s)
- Khemchand Surana
- Department of Medicinal Chemistry , National Institute of Pharmaceutical Education and Research , Ahmedabad (NIPER-A) , Gandhinagar , Gujarat - 382355 , India .
| | - Bharatkumar Chaudhary
- Department of Medicinal Chemistry , National Institute of Pharmaceutical Education and Research , Ahmedabad (NIPER-A) , Gandhinagar , Gujarat - 382355 , India .
| | - Monika Diwaker
- Department of Medicinal Chemistry , National Institute of Pharmaceutical Education and Research , Ahmedabad (NIPER-A) , Gandhinagar , Gujarat - 382355 , India .
| | - Satyasheel Sharma
- Department of Medicinal Chemistry , National Institute of Pharmaceutical Education and Research , Ahmedabad (NIPER-A) , Gandhinagar , Gujarat - 382355 , India .
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19
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Ma M, Zhao J, Cheng H, Deng M, Ding Z, Hou Y, Li F, Dou G, Li W. In vitro and in vivo pharmacokinetic and pharmacodynamic study of MBRI-001, a deuterium-substituted plinabulin derivative as a potent anti-cancer agent. Bioorg Med Chem 2018; 26:4687-4692. [PMID: 30119994 DOI: 10.1016/j.bmc.2018.08.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 07/26/2018] [Accepted: 08/04/2018] [Indexed: 02/06/2023]
Abstract
MBRI-001 was demonstrated preliminary better pharmacokinetics and antitumor effects than that of plinabulin in vivo. In this approach, we further carried out systematic pharmacokinetic and pharmacodynamic study of MBRI-001 in vitro and in vivo. MBRI-001 was tested stable in rat plasma and more stable in liver microsomes than plinabulin in vitro. In vivo, MBRI-001 could be distributed rapidly and widely in various tissues, especially the concentration of MBRI-001 in lung was remarkably higher than other tissues. Excretion study indicated that MBRI-001 might been decomposed and excreted as metabolites. Additionally, the combination treatment of MBRI-001 and gefitinib revealed better antitumor inhibition rate than monotherapy in vivo. Therefore, we suggest that MBRI-001 could be developed as a promising anti-cancer agent in near future.
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Affiliation(s)
- Mingxu Ma
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Jianchun Zhao
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; Marine Biomedical Research Institute of Qingdao, Qingdao 266071, China
| | - Hejuan Cheng
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Mengyan Deng
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Zhongpeng Ding
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Yingwei Hou
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; Marine Biomedical Research Institute of Qingdao, Qingdao 266071, China
| | - Feng Li
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; Marine Biomedical Research Institute of Qingdao, Qingdao 266071, China
| | - Guifang Dou
- Institute of Transfusion Medicine, Academy of Military Medical Sciences, Beijing 100850, China
| | - Wenbao Li
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; Innovation Center for Marine Drug Screening and Evaluation, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China; Marine Biomedical Research Institute of Qingdao, Qingdao 266071, China.
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20
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Karcher J, Pianowski ZL. Photocontrol of Drug Release from Supramolecular Hydrogels with Green Light. Chemistry 2018; 24:11605-11610. [DOI: 10.1002/chem.201802205] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 06/22/2018] [Indexed: 12/18/2022]
Affiliation(s)
- Johannes Karcher
- Institut für Organische ChemieKarlsruher Institut für Technologie Fritz-Haber-Weg 6 76131 Karlsruhe Germany
| | - Zbigniew L. Pianowski
- Institut für Organische ChemieKarlsruher Institut für Technologie Fritz-Haber-Weg 6 76131 Karlsruhe Germany
- Institut für Toxikologie und GenetikKarlsruher Institut für Technologie, Campus Nord Hermann-von-Helmholtz Platz 1 76344 Eggenstein-Leopoldshafen Germany
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21
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Ahad F, Ghouri N, Khan KM, Perveen S, Choudhary MI. Synthesis of 4-substituted ethers of benzophenone and their antileishmanial activities. ROYAL SOCIETY OPEN SCIENCE 2018; 5:171771. [PMID: 29892370 PMCID: PMC5990808 DOI: 10.1098/rsos.171771] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Accepted: 04/05/2018] [Indexed: 06/08/2023]
Abstract
Leishmaniasis is a vector-borne protozoan disease; it mainly originates from the bite of sandfly and initiated when parasite is transmitted to human at metacyclic flagellated promastigote form. In the current study, a synthesis of a series of 4-substituted benzophenone ethers 1-20 was carried out in good yields and their in vitro antileishmanial activities were also screened. Among synthetic derivatives, 15 compounds 1, 3, 5-12, 15 and 17-20 showed antileishmanial activities against promastigotes of Leishmania major with IC50 values in the range of 1.19-82.30 µg ml-1, and the values were compared with those of the standard pentamidine (IC50 = 5.09 ± 0.09 µg ml-1). Our study identified a series of new antileishmanial molecules as potential leads. Structures of these synthetic compounds were deduced by different spectroscopic techniques, such as 1H and 13C nuclear magnetic resonance, electron impact and high-resolution electron impact mass spectrometry and IR.
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Affiliation(s)
- Arshia
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Faiza Ahad
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Nida Ghouri
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Kanwal
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Khalid Mohammed Khan
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
- Department of Clinical Pharmacy, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, PO Box 1982, Dammam 31441, Saudi Arabia
| | - Shahnaz Perveen
- PCSIR Laboratories Complex, Karachi, Shahrah-e-Dr. Salimuzzaman Siddiqui, Karachi 75280, Pakistan
| | - M. Iqbal Choudhary
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
- Department of Biochemistry, Faculty of Sciences, King Abdulaziz University, Jeddah 21412, Saudi Arabia
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22
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Design, synthesis and biological evaluation of anti-pancreatic cancer activity of plinabulin derivatives based on the co-crystal structure. Bioorg Med Chem 2018; 26:2061-2072. [PMID: 29571653 DOI: 10.1016/j.bmc.2018.03.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 03/01/2018] [Accepted: 03/02/2018] [Indexed: 12/13/2022]
Abstract
Based on the co-crystal structures of tubulin with plinabulin and Compound 1 (a derivative of plinabulin), a total of 18 novel plinabulin derivatives were designed and synthesized. Their biological activities were evaluated against human pancreatic cancer BxPC-3 cell lines. Two novel Compounds 13d and 13e exhibited potent activities with IC50 at 1.56 and 1.72 nM, respectively. The tubulin polymerization assay indicated that these derivatives could inhibit microtubule polymerization. Furthermore, the interaction between tubulin and these compounds were elucidated by molecular docking. The binding modes of Compounds 13d and 13e were similar to the co-crystal structure of Compound 1. H-π interaction was observed between the aromatic hydrogen of thiophene moiety with Phe20, which could enhance their binding affinities.
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23
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Tubulin inhibitors targeting the colchicine binding site: a perspective of privileged structures. Future Med Chem 2017; 9:1765-1794. [DOI: 10.4155/fmc-2017-0100] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The vital roles of microtubule in mitosis and cell division make it an attractive target for antitumor therapy. Colchicine binding site of tubulin is one of the most important pockets that have been focused on to design tubulin-destabilizing agents. Over the past few years, a large number of colchicine binding site inhibitors (CBSIs) have been developed inspired by natural products or synthetic origins, and many moieties frequently used in these CBSIs are structurally in common. In this review, we will classify the CBSIs into classical CBSIs and nonclassical CBSIs according to their spatial conformations and binding modes with tubulin, and highlight the privileged structures from these CBSIs in the development of tubulin inhibitors targeting the colchicine binding site.
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24
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Ding Z, Cheng H, Wang S, Hou Y, Zhao J, Guan H, Li W. Development of MBRI-001, a deuterium-substituted plinabulin derivative as a potent anti-cancer agent. Bioorg Med Chem Lett 2017; 27:1416-1419. [PMID: 28228362 DOI: 10.1016/j.bmcl.2017.01.096] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2016] [Revised: 01/19/2017] [Accepted: 01/31/2017] [Indexed: 01/02/2023]
Abstract
Plinabulin, a drug targeting microtubule of cancer cells, has been currently tried in its phase III clinical study. However, low efficacy caused by poor pharmacokinetic (PK) properties has been considered to be the main obstacle to approved by the Food and Drug Administration. Herein, we introduced a deuterium atom as an isostere in its structure to become a new compound named (MBRI-001, No. 9 in a series of deuterium-substituted compounds). The structure of MBRI-001 was characterized by HRMS, NMR, IR and a single crystal analysis. MBRI-001 exhibited better pharmacokinetic characteristics than that of plinabulin. Additionally, its antitumor activity is in a low nanomolar level for a variety of cancer cell lines and high activity against human NCI-H460 xenograted in mice intravenous administration. Importantly, continuous administration of MBRI-001 exhibited lower toxicity compared to docetaxel. We thus suggest that MBRI-001 could be developed as a promising anti-cancer agent in near future.
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Affiliation(s)
- Zhongpeng Ding
- Key Laboratory of Marine Drugs of Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China
| | - Hejuan Cheng
- Key Laboratory of Marine Drugs of Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China
| | - Shixiao Wang
- Marine Biomedical Research Institute of Qingdao, Qingdao 266071, People's Republic of China
| | - Yingwei Hou
- Key Laboratory of Marine Drugs of Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China; Marine Biomedical Research Institute of Qingdao, Qingdao 266071, People's Republic of China
| | - Jianchun Zhao
- Key Laboratory of Marine Drugs of Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China; Marine Biomedical Research Institute of Qingdao, Qingdao 266071, People's Republic of China
| | - Huashi Guan
- Key Laboratory of Marine Drugs of Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China; Marine Biomedical Research Institute of Qingdao, Qingdao 266071, People's Republic of China
| | - Wenbao Li
- Key Laboratory of Marine Drugs of Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China; Marine Biomedical Research Institute of Qingdao, Qingdao 266071, People's Republic of China.
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25
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Elmeligie S, Khalil NA, Ahmed EM, Emam SH. New 3-Substituted-2-(4-hydroxyanilino)pyridine Derivatives: Synthesis, Antitumor Activity, and Tubulin Polymerization Inhibition. Arch Pharm (Weinheim) 2017; 350. [DOI: 10.1002/ardp.201600256] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 12/31/2016] [Accepted: 01/04/2017] [Indexed: 12/28/2022]
Affiliation(s)
- Salwa Elmeligie
- Faculty of Pharmacy, Department of Pharmaceutical Organic Chemistry; Cairo University; Cairo Egypt
| | - Nadia A. Khalil
- Faculty of Pharmacy, Department of Pharmaceutical Organic Chemistry; Cairo University; Cairo Egypt
| | - Eman M. Ahmed
- Faculty of Pharmacy, Department of Pharmaceutical Organic Chemistry; Cairo University; Cairo Egypt
| | - Soha H. Emam
- Faculty of Pharmacy, Department of Pharmaceutical Organic Chemistry; Cairo University; Cairo Egypt
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26
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Chen L, Zhu YJ, Fan ZJ, Guo XF, Zhang ZM, Xu JH, Song YQ, Yurievich MY, Belskaya NP, Bakulev VA. Synthesis of 1,2,3-Thiadiazole and Thiazole-Based Strobilurins as Potent Fungicide Candidates. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:745-751. [PMID: 28055187 DOI: 10.1021/acs.jafc.6b05128] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Strobilurin fungicides play a crucial role in protecting plants against different pathogens and securing food supplies. A series of 1,2,3-thiadiazole and thiazole-based strobilurins were rationally designed, synthesized, characterized, and tested against various fungi. Introduction of 1,2,3-thiadiazole greatly improved the fungicidal activity of the target molecules. Compounds 8a, 8c, 8d, and 10i exhibited a relatively broad spectrum of fungicidal activity. Compound 8a showed excellent activities against Gibberella zeae, Sclerotinia sclerotiorum, and Rhizoctonia cerealis with median effective concentrations (EC50) of 2.68, 0.44, and 0.01 μg/mL, respectively; it was much more active than positive controls enestroburin, kresoxim-methyl, and azoxystrobin with EC50 between 0.06 and 15.12 μg/mL. Comparable or better fungicidal efficacy of compound 8a compared with azoxystrobin and trifloxystrobin against Sphaerotheca fuliginea and Pseudoperonspera cubensis was validated in cucumber fields at the same application dosages. Therefore, compound 8a is a promising fungicidal candidate worthy of further development.
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Affiliation(s)
- Lai Chen
- State Key Laboratory of Elemento-Organic Chemistry, Nankai University , Tianjin 300071, People's Republic of China
| | - Yu-Jie Zhu
- State Key Laboratory of Elemento-Organic Chemistry, Nankai University , Tianjin 300071, People's Republic of China
| | - Zhi-Jin Fan
- State Key Laboratory of Elemento-Organic Chemistry, Nankai University , Tianjin 300071, People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University , Tianjin 300071, People's Republic of China
| | - Xiao-Feng Guo
- State Key Laboratory of Elemento-Organic Chemistry, Nankai University , Tianjin 300071, People's Republic of China
| | - Zhi-Ming Zhang
- State Key Laboratory of Elemento-Organic Chemistry, Nankai University , Tianjin 300071, People's Republic of China
| | - Jing-Hua Xu
- State Key Laboratory of Elemento-Organic Chemistry, Nankai University , Tianjin 300071, People's Republic of China
| | - Ying-Qi Song
- State Key Laboratory of Elemento-Organic Chemistry, Nankai University , Tianjin 300071, People's Republic of China
| | - Morzherin Y Yurievich
- The Ural Federal University Named after the First President of Russia B. N. Yeltsin, Yeltsin UrFU , 620002 Ekaterinburg, Russia
| | - Nataliya P Belskaya
- The Ural Federal University Named after the First President of Russia B. N. Yeltsin, Yeltsin UrFU , 620002 Ekaterinburg, Russia
| | - Vasiliy A Bakulev
- The Ural Federal University Named after the First President of Russia B. N. Yeltsin, Yeltsin UrFU , 620002 Ekaterinburg, Russia
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27
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Dormán G, Nakamura H, Pulsipher A, Prestwich GD. The Life of Pi Star: Exploring the Exciting and Forbidden Worlds of the Benzophenone Photophore. Chem Rev 2016; 116:15284-15398. [PMID: 27983805 DOI: 10.1021/acs.chemrev.6b00342] [Citation(s) in RCA: 133] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The widespread applications of benzophenone (BP) photochemistry in biological chemistry, bioorganic chemistry, and material science have been prominent in both academic and industrial research. BP photophores have unique photochemical properties: upon n-π* excitation at 365 nm, a biradicaloid triplet state is formed reversibly, which can abstract a hydrogen atom from accessible C-H bonds; the radicals subsequently recombine, creating a stable covalent C-C bond. This light-directed covalent attachment process is exploited in many different ways: (i) binding/contact site mapping of ligand (or protein)-protein interactions; (ii) identification of molecular targets and interactome mapping; (iii) proteome profiling; (iv) bioconjugation and site-directed modification of biopolymers; (v) surface grafting and immobilization. BP photochemistry also has many practical advantages, including low reactivity toward water, stability in ambient light, and the convenient excitation at 365 nm. In addition, several BP-containing building blocks and reagents are commercially available. In this review, we explore the "forbidden" (transitions) and excitation-activated world of photoinduced covalent attachment of BP photophores by touring a colorful palette of recent examples. In this exploration, we will see the pros and cons of using BP photophores, and we hope that both novice and expert photolabelers will enjoy and be inspired by the breadth and depth of possibilities.
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Affiliation(s)
- György Dormán
- Targetex llc , Dunakeszi H-2120, Hungary.,Faculty of Pharmacy, University of Szeged , Szeged H-6720, Hungary
| | - Hiroyuki Nakamura
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology , Yokohama 226-8503, Japan
| | - Abigail Pulsipher
- GlycoMira Therapeutics, Inc. , Salt Lake City, Utah 84108, United States.,Division of Head and Neck Surgery, Rhinology - Sinus and Skull Base Surgery, Department of Surgery, University of Utah School of Medicine , Salt Lake City, Utah 84108, United States
| | - Glenn D Prestwich
- Division of Head and Neck Surgery, Rhinology - Sinus and Skull Base Surgery, Department of Surgery, University of Utah School of Medicine , Salt Lake City, Utah 84108, United States
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28
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Design, synthesis and cytotoxic activities of novel 2,5-diketopiperazine derivatives. Eur J Med Chem 2016; 121:500-509. [DOI: 10.1016/j.ejmech.2016.06.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 05/30/2016] [Accepted: 06/02/2016] [Indexed: 01/13/2023]
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29
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Liao SR, Du LJ, Qin XC, Xu L, Wang JF, Zhou XF, Tu ZC, Li J, Liu YH. Site selective synthesis of cytotoxic 1,3,6-trisubstituted 3,6-diunsaturated (3Z,6Z)-2,5-diketopiperazines via a one-pot multicomponent method. Tetrahedron 2016. [DOI: 10.1016/j.tet.2015.12.073] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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30
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Elmeligie S, Khalil NA, Ahmed EM, Emam SH, Zaitone SAB. Synthesis of New N1-Substituted-5-aryl-3-(3,4,5-trimethoxyphenyl)-2-pyrazoline Derivatives as Antitumor Agents Targeting the Colchicine Site on Tubulin. Biol Pharm Bull 2016; 39:1611-1622. [DOI: 10.1248/bpb.b16-00277] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Salwa Elmeligie
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Cairo University
| | - Nadia Abdalla Khalil
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Cairo University
| | - Eman Mohamed Ahmed
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Cairo University
| | - Soha Hussein Emam
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Cairo University
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31
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Ai T, Qiu L, Xie J, Geraghty RJ, Chen L. Design and synthesis of an activity-based protein profiling probe derived from cinnamic hydroxamic acid. Bioorg Med Chem 2015; 24:686-92. [PMID: 26753813 DOI: 10.1016/j.bmc.2015.12.035] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Revised: 12/14/2015] [Accepted: 12/22/2015] [Indexed: 12/19/2022]
Abstract
In our continued effort to discover new anti-hepatitis C virus (HCV) agents, we validated the anti-replicon activity of compound 1, a potent and selective anti-HCV hydroxamic acid recently reported by us. Generally favorable physicochemical and in vitro absorption, distribution, metabolism, and excretion (ADME) properties exhibited by 1 made it an ideal parent compound from which activity-based protein profiling (ABPP) probe 3 was designed and synthesized. Evaluation of probe 3 revealed that it possessed necessary anti-HCV activity and selectivity. Therefore, we have successfully obtained compound 3 as a suitable ABPP probe to identify potential molecular targets of compound 1. Probe 3 and its improved analogs are expected to join a growing list of ABPP probes that have made important contributions to not only the studies of biochemical and cellular functions but also discovery of selective inhibitors of protein targets.
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Affiliation(s)
- Teng Ai
- Center for Drug Design, Academic Health Center, University of Minnesota, 516 Delaware Street S.E., Minneapolis, MN 55455, USA
| | - Li Qiu
- Center for Drug Design, Academic Health Center, University of Minnesota, 516 Delaware Street S.E., Minneapolis, MN 55455, USA
| | - Jiashu Xie
- Center for Drug Design, Academic Health Center, University of Minnesota, 516 Delaware Street S.E., Minneapolis, MN 55455, USA
| | - Robert J Geraghty
- Center for Drug Design, Academic Health Center, University of Minnesota, 516 Delaware Street S.E., Minneapolis, MN 55455, USA
| | - Liqiang Chen
- Center for Drug Design, Academic Health Center, University of Minnesota, 516 Delaware Street S.E., Minneapolis, MN 55455, USA.
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32
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Moine E, Dimier-Poisson I, Enguehard-Gueiffier C, Logé C, Pénichon M, Moiré N, Delehouzé C, Foll-Josselin B, Ruchaud S, Bach S, Gueiffier A, Debierre-Grockiego F, Denevault-Sabourin C. Development of new highly potent imidazo[1,2-b]pyridazines targeting Toxoplasma gondii calcium-dependent protein kinase 1. Eur J Med Chem 2015; 105:80-105. [PMID: 26479029 DOI: 10.1016/j.ejmech.2015.10.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Revised: 10/02/2015] [Accepted: 10/03/2015] [Indexed: 11/16/2022]
Abstract
Using a structure-based design approach, we have developed a new series of imidazo[1,2-b]pyridazines, targeting the calcium-dependent protein kinase-1 (CDPK1) from Toxoplasma gondii. Twenty derivatives were thus synthesized. Structure-activity relationships and docking studies confirmed the binding mode of these inhibitors within the ATP binding pocket of TgCDPK1. Two lead compounds (16a and 16f) were then identified, which were able to block TgCDPK1 enzymatic activity at low nanomolar concentrations, with a good selectivity profile against a panel of mammalian kinases. The potential of these inhibitors was confirmed in vitro on T. gondii growth, with EC50 values of 100 nM and 70 nM, respectively. These best candidates also displayed low toxicity to mammalian cells and were selected for further in vivo investigations on murine model of acute toxoplasmosis.
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Affiliation(s)
- Espérance Moine
- Université François-Rabelais de Tours, UMR1282 Infectiologie et Santé Publique, F-37000 Tours, France; INRA, UMR1282 Infectiologie et Santé Publique, F-37380 Nouzilly, France
| | - Isabelle Dimier-Poisson
- Université François-Rabelais de Tours, UMR1282 Infectiologie et Santé Publique, F-37000 Tours, France; INRA, UMR1282 Infectiologie et Santé Publique, F-37380 Nouzilly, France
| | - Cécile Enguehard-Gueiffier
- Université François-Rabelais de Tours, UMR1282 Infectiologie et Santé Publique, F-37000 Tours, France; INRA, UMR1282 Infectiologie et Santé Publique, F-37380 Nouzilly, France
| | - Cédric Logé
- Université de Nantes, Nantes Atlantique Universités, Laboratoire de Chimie Thérapeutique, Cibles et Médicaments des Infections et du Cancer, IICiMed-EA 1155, UFR de Sciences Pharmaceutiques et Biologiques, F-44035 Nantes, France
| | - Mélanie Pénichon
- Université François-Rabelais de Tours, UMR1282 Infectiologie et Santé Publique, F-37000 Tours, France; INRA, UMR1282 Infectiologie et Santé Publique, F-37380 Nouzilly, France
| | - Nathalie Moiré
- Université François-Rabelais de Tours, UMR1282 Infectiologie et Santé Publique, F-37000 Tours, France; INRA, UMR1282 Infectiologie et Santé Publique, F-37380 Nouzilly, France
| | - Claire Delehouzé
- USR3151 CNRS/UPMC, Plate-forme de Criblage KISSf (Kinase Inhibitor Specialized Screening Facility), Station Biologique de Roscoff, F-29688 Roscoff, France
| | - Béatrice Foll-Josselin
- USR3151 CNRS/UPMC, Plate-forme de Criblage KISSf (Kinase Inhibitor Specialized Screening Facility), Station Biologique de Roscoff, F-29688 Roscoff, France
| | - Sandrine Ruchaud
- USR3151 CNRS/UPMC, Plate-forme de Criblage KISSf (Kinase Inhibitor Specialized Screening Facility), Station Biologique de Roscoff, F-29688 Roscoff, France
| | - Stéphane Bach
- USR3151 CNRS/UPMC, Plate-forme de Criblage KISSf (Kinase Inhibitor Specialized Screening Facility), Station Biologique de Roscoff, F-29688 Roscoff, France
| | - Alain Gueiffier
- Université François-Rabelais de Tours, UMR1282 Infectiologie et Santé Publique, F-37000 Tours, France; INRA, UMR1282 Infectiologie et Santé Publique, F-37380 Nouzilly, France
| | - Françoise Debierre-Grockiego
- Université François-Rabelais de Tours, UMR1282 Infectiologie et Santé Publique, F-37000 Tours, France; INRA, UMR1282 Infectiologie et Santé Publique, F-37380 Nouzilly, France
| | - Caroline Denevault-Sabourin
- Université François-Rabelais de Tours, UMR1282 Infectiologie et Santé Publique, F-37000 Tours, France; INRA, UMR1282 Infectiologie et Santé Publique, F-37380 Nouzilly, France.
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33
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Das R, Kapur M. Fujiwara-Moritani Reaction of Weinreb Amides using a Ruthenium-Catalyzed C−H Functionalization Reaction. Chem Asian J 2015; 10:1505-12. [DOI: 10.1002/asia.201500343] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2015] [Indexed: 01/21/2023]
Affiliation(s)
- Riki Das
- Department of Chemistry; Indian Institute of Science Education and Research Bhopal, Academic Building II; Indore Bypass Road, Bhauri Bhopal 462066, MP India
| | - Manmohan Kapur
- Department of Chemistry; Indian Institute of Science Education and Research Bhopal, Academic Building II; Indore Bypass Road, Bhauri Bhopal 462066, MP India
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Hayashi Y, Takeno H, Chinen T, Muguruma K, Okuyama K, Taguchi A, Takayama K, Yakushiji F, Miura M, Usui T, Hayashi Y. Development of a new benzophenone-diketopiperazine-type potent antimicrotubule agent possessing a 2-pyridine structure. ACS Med Chem Lett 2014; 5:1094-8. [PMID: 25313318 DOI: 10.1021/ml5001883] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Accepted: 07/23/2014] [Indexed: 01/01/2023] Open
Abstract
A new benzophenone-diketopiperazine-type potent antimicrotubule agent was developed by modifying the structure of the clinical candidate plinabulin (1). Although the right-hand imidazole ring with a branched alkyl chain at the 5-position in 1 was critical for the potency of the antimicrotubule activity, we successfully substituted this moiety with a simpler 2-pyridyl structure by converting the left-hand ring from a phenyl to a benzophenone structure without decreasing the potency. The resultant compound 6b (KPU-300) exhibited a potent cytotoxicity, with an IC50 value of 7.0 nM against HT-29 cells, by strongly binding to tubulin (K d = 1.3 μM) and inducing microtubule depolymerization.
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Affiliation(s)
- Yoshiki Hayashi
- Department
of Medicinal Chemistry, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan
| | - Haruka Takeno
- Department
of Medicinal Chemistry, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan
| | - Takumi Chinen
- Graduate
School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8572, Japan
| | - Kyohei Muguruma
- Department
of Medicinal Chemistry, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan
| | | | - Akihiro Taguchi
- Department
of Medicinal Chemistry, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan
| | - Kentaro Takayama
- Department
of Medicinal Chemistry, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan
| | - Fumika Yakushiji
- Department
of Medicinal Chemistry, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan
| | | | - Takeo Usui
- Graduate
School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8572, Japan
| | - Yoshio Hayashi
- Department
of Medicinal Chemistry, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan
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35
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Design and synthesis of novel soluble 2,5-diketopiperazine derivatives as potential anticancer agents. Eur J Med Chem 2014; 83:236-44. [DOI: 10.1016/j.ejmech.2014.06.030] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2013] [Revised: 02/05/2014] [Accepted: 06/13/2014] [Indexed: 11/24/2022]
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36
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Kamal A, Reddy CR, Vishnuvardhan M, Mahesh R, Lakshma Nayak V, Prabhakar S, Reddy CS. Synthesis and biological evaluation of cinnamido linked benzophenone hybrids as tubulin polymerization inhibitors and apoptosis inducing agents. Bioorg Med Chem Lett 2014; 24:2309-14. [DOI: 10.1016/j.bmcl.2014.03.076] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Revised: 03/13/2014] [Accepted: 03/25/2014] [Indexed: 12/19/2022]
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37
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Synthesis and unusual ring transformation of 1-acyl-3-(ferrocenylmethylidene)-piperazine-2,5-diones. J Organomet Chem 2013. [DOI: 10.1016/j.jorganchem.2013.08.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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38
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Ranganatha VL, Vijay Avin BR, Thirusangu P, Prashanth T, Prabhakar BT, Khanum SA. Synthesis, angiopreventive activity, and in vivo tumor inhibition of novel benzophenone-benzimidazole analogs. Life Sci 2013; 93:904-11. [PMID: 24135459 DOI: 10.1016/j.lfs.2013.10.001] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2013] [Revised: 09/25/2013] [Accepted: 10/01/2013] [Indexed: 11/30/2022]
Abstract
AIM The development of anticancer drugs with specific targets is of prime importance in modern biology. This study investigates the angiopreventive and in vivo tumor inhibition activities of novel synthetic benzophenone-benzimidazole analogs. MAIN METHODS The multistep synthesis of novel benzophenone-benzimidazole analogs (8a-n) allowing substitution with methoxy, methyl and halogen groups at different positions on the identical chemical backbone and the variations in the number of substituents were synthesized and characterized. The newly synthesized compounds were further evaluated for cytotoxic and antiproliferative effects against Ehrlich ascites carcinoma (EAC) cells. The potent lead compounds were further assessed for antiangiogenic effects in a CAM model and a tumor-induced vasculature in vivo model. The effect of angioprevention on tumor growth was verified in a mouse model. KEY FINDINGS The cytotoxicity studies revealed that compounds 8f and 8n are strongly cytotoxic. Analyzing the structure-activity relationship, we found that an increase in the number of methyl groups in addition to methoxy substitution at the para position of the benzoyl ring in compound 8n resulted in higher potency compared to 8f. Furthermore, neovessel formation in in vivo systems, such as the chorioallantoic membrane (CAM) and tumor-induced mice peritoneum models, was significantly suppressed and reflected the tumor inhibition observed in mice. SIGNIFICANCE These results suggest the potential clinical application of compound 8n as an antiangiogenic drug for cancer therapy.
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Affiliation(s)
- V Lakshmi Ranganatha
- Department of Chemistry, Yuvaraj's College (Autonomous), University of Mysore, Mysore 570 005, Karnataka, India
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39
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Unusual expression of red fluorescence at M phase induced by anti-microtubule agents in HeLa cells expressing the fluorescent ubiquitination-based cell cycle indicator (Fucci). Biochem Biophys Res Commun 2012; 428:224-9. [PMID: 23063846 DOI: 10.1016/j.bbrc.2012.10.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2012] [Accepted: 10/02/2012] [Indexed: 01/19/2023]
Abstract
Plinabulin (NPI-2358) is a novel microtubule-depolymerizing agent. In HeLa cells, plinabulin arrests the cell-cycle at M phase and subsequently induces mitotic catastrophe. To better understand the effects on this compound on the cell-cycle, we used the fluorescent ubiquitination-based cell cycle indicator (Fucci), which normally enables G1 and S/G2/M cells to emit red and green fluorescence, respectively. When HeLa-Fucci cells were treated with 50 nM plinabulin, cells began to fluoresce both green and red in an unusual pattern; most cells exhibited the new pattern after 24 h of treatment. X-irradiation efficiently induced G2 arrest in plinabulin-treated cells and significantly retarded the emergence of the unusual pattern, suggesting that entering M phase is essential for induction of the pattern. By simultaneously visualizing chromosomes with GFP-histone H2B, we established that the pattern emerges after nuclear envelope breakdown but before metaphase. Pedigree assay revealed a significant relationship between the unusual expression and mitotic catastrophe. Nocodazole, KPU-133 (a more potent derivative of plinabulin), and paclitaxel also exerted similar effects. From these data, we conclude that the unusual pattern may be associated with dysregulation of late M phase-specific E3 ligase activity and mitotic catastrophe following treatment with anti-microtubule agents.
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