1
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Zuo Y, Zuo P, Liu M, Wang X, Du J, Li X, Zhang P, Xu Z. Recent approaches for the synthesis of heterocycles from amidines via a metal catalyzed C-H functionalization reaction. Org Biomol Chem 2024; 22:5014-5031. [PMID: 38831700 DOI: 10.1039/d4ob00420e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2024]
Abstract
Transition metal catalyzed C-H bond activation has become one of the most important tools for constructing new chemical bonds. Introducing directing groups to the substrates is the key to a successful reaction, these directing groups can also be further transformed in the reaction. Amidines with their unique structure and reactivity are ideal substrates for transition metal-catalyzed C-H transformations. This review describes the major advances and mechanistic investigations of the C-H activation/annulation tandem reactions of amidines until early 2024, focusing on metal-catalyzed C-H activation of amidines with unsaturated compounds, such as alkynes, ketone, vinylene carbonate, cyclopropanols and their derivatives. Meanwhile this manuscript also explores the reaction of amidines with different carbene precursors, for example diazo compounds, azide, triazoles, pyriodotriazoles, and sulfoxonium ylides as well as their own C-H bond activation/cyclization reactions. A bright outlook is provided at the end of the manuscript.
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Affiliation(s)
- Youpeng Zuo
- School of Chemistry and Chemical Engineering, Suzhou University, Suzhou, Anhui 234000, People's Republic of China.
| | - Pengfei Zuo
- Kunshan Customs, Kunshan, Jiangsu 215300, People's Republic of China
| | - Meijun Liu
- School of Chemistry and Chemical Engineering, Suzhou University, Suzhou, Anhui 234000, People's Republic of China.
| | - Xiaoqing Wang
- School of Chemistry and Chemical Engineering, Suzhou University, Suzhou, Anhui 234000, People's Republic of China.
| | - Jun Du
- School of Chemistry and Chemical Engineering, Suzhou University, Suzhou, Anhui 234000, People's Republic of China.
| | - Xiaoling Li
- School of Chemistry and Chemical Engineering, Suzhou University, Suzhou, Anhui 234000, People's Republic of China.
| | - Pinghua Zhang
- School of Chemistry and Chemical Engineering, Suzhou University, Suzhou, Anhui 234000, People's Republic of China.
| | - Zhenhua Xu
- School of Chemistry and Chemical Engineering, Suzhou University, Suzhou, Anhui 234000, People's Republic of China.
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2
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Sharma A, Pandey SK. Catalyst- and additive-free syntheses of rhodanine and S-alkyl dithiocarbamate derivatives from sulfoxonium ylides. Chem Commun (Camb) 2023; 59:1509-1512. [PMID: 36655910 DOI: 10.1039/d2cc06092b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
An efficient catalyst- and additive-free facile access to rhodanine and S-alkyl dithiocarbamate derivatives via multi-component reaction of amines, CS2 and α-ester sulfoxonium ylides in methanol has been described. The new synthetic methods offer excellent synthetic prospects for several functionalized rhodanines and S-alkyl dithiocarbamates with simple operational procedures.
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Affiliation(s)
- Ajay Sharma
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221 005, India.
| | - Satyendra Kumar Pandey
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221 005, India.
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3
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Tao K, Qin F, Li Y, Zhang S, Han S, Liu G, Wang J, Shen J, Yang Z, Tang Y, Sun G. Fabrication and mechanical, electrical properties study of polyimide films curing at low-temperature condition assisted by microwave. HIGH PERFORM POLYM 2022. [DOI: 10.1177/09540083221100366] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Polyimide (PI) films with excellent mechanical and electrical properties were produced at a low temperature assisted by microwave. Depending on the reciprocating movement of dipole molecules excited by microwave, even though under a low temperature, the rotation and conformational changes of functional groups could also be promoted. Thus, reaction between N-H bond and -OH in carboxyl which could realize dehydration and cyclization of polyamic acid proceeded normally. Results revealed that the combination between ambient temperature only at 70°C and microwave power at 2000 W or higher could also produce PI films with imidization degree of 100%. For PI-2000W, compared with traditional PI film (PI-300°C) that generated only at temperature of 300°C, even though on the basis of no any change in molecular structure and addition of filler, the tensile strength, elastic modulus, crystallinity, and apparent density increased by about 21%, 51%, 37%, and 5%, respectively. For electrical properties, conductivity enhanced by one to two orders of magnitude comparing with PI-300°C. Results indicated that while keeping the original molecular structure of PI films unchanged, this work provided a new and effective method to assist the enhancement in mechanical and electrical properties of PI films.
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Affiliation(s)
- Kangkang Tao
- Key Laboratory of Superlight Material and Surface Technology of Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, China
| | - Fei Qin
- Key Laboratory of Superlight Material and Surface Technology of Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, China
| | - Yahui Li
- Key Laboratory of Superlight Material and Surface Technology of Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, China
| | - Shuai Zhang
- Key Laboratory of Superlight Material and Surface Technology of Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, China
| | - Shihui Han
- Key Laboratory of Superlight Material and Surface Technology of Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, China
| | - Guangmin Liu
- Key Laboratory of Superlight Material and Surface Technology of Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, China
| | - Jun Wang
- Key Laboratory of Superlight Material and Surface Technology of Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, China
| | - Jun Shen
- Key Laboratory of Superlight Material and Surface Technology of Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, China
| | - Zailin Yang
- College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin, China
| | - Yi Tang
- Bohai Shipyard Group Co., Ltd, Huludao, China
| | - Gaohui Sun
- Key Laboratory of Superlight Material and Surface Technology of Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, China
- College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin, China
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4
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Design and Synthesis of a Novel 4-aryl-N-(2-alkoxythieno [2,3-b]pyrazine-3-yl)-4-arylpiperazine-1-carboxamide DGG200064 Showed Therapeutic Effect on Colon Cancer through G2/M Arrest. Pharmaceuticals (Basel) 2022; 15:ph15050502. [PMID: 35631329 PMCID: PMC9143821 DOI: 10.3390/ph15050502] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/11/2022] [Accepted: 04/15/2022] [Indexed: 02/04/2023] Open
Abstract
Cancer cells are characterized by an abnormal cell cycle. Therefore, the cell cycle has been a potential target for cancer therapeutic agents. We developed a new lead compound, DGG200064 (7c) with a 2-alkoxythieno [2,3-b]pyrazine-3-yl)-4-arylpiperazine-1-carboxamide core skeleton. To evaluate its properties, compound DGG200064 was tested in vivo through a xenograft mouse model of colorectal cancer using HCT116 cells. The in vivo results showed high cell growth inhibition efficacy. Our results confirmed that the newly synthesized DGG200064 inhibits the growth of colorectal cancer cells by inducing G2/M arrest. Unlike the known cell cycle inhibitors, DGG200064 (GI50 = 12 nM in an HCT116 cell-based assay) induced G2/M arrest by selectively inhibiting the interaction of FBXW7 and c-Jun proteins. Additionally, the physicochemical properties of the lead compounds were analyzed. Based on the results of the study, we suggested further development of DGG200064 as a novel oral anti-colorectal cancer drug.
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Lei X, Feng J, Guo Q, Xu C, Shi J. Base-Promoted Formal [3 + 2] Cycloaddition of α-Halohydroxamates with Carbon Disulfide to Synthesize Polysubstituted Rhodanines. Org Lett 2022; 24:2837-2841. [PMID: 35394789 DOI: 10.1021/acs.orglett.2c00736] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A concise and practical strategy via potassium-carbonate-mediated [3 + 2]-cycloaddition reaction of α-halohydroxamates with the common solvent carbon disulfide for the synthesis of functionalized rhodanine derivatives in good to excellent yields is developed. The present methodology features a wide substrate scope as well as good functional group tolerance. The potential synthetic utility of this protocol is demonstrated by synthesis of a series of natural product derivatives containing rhodamine skeletons.
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Affiliation(s)
- Xiaoqiang Lei
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Juan Feng
- School of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, People's Republic of China
| | - Qinglan Guo
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Chengbo Xu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Jiangong Shi
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
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6
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Cha MJ, Abdildinova A, Gong YD. Solid-phase parallel synthesis of 1,3-thiazole library adorned with dipeptidyl chains. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131702] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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7
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Habibi A, Khosravi S, Shahcheragh SM, Abdul Rahman MB. One-Pot Green Synthesis of Some Novel N-Substituted 5-Amino-1,3,4- Thiadiazole Derivatives. LETT ORG CHEM 2020. [DOI: 10.2174/1570178616666190926105533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In the current study, a green, one-pot, three-component reaction was performed to prepare
novel N-substituted 5-amino-1,3,4-thiadiazole derivatives. The thiadiazoles were obtained from the reaction
of a ketene S,S-acetal of Meldrum’s acid or barbituric acid (as key intermediates), hydrazine,
and isothiocyanate. The key advantages of this manner include environmentally safe reactions, high
yield, appropriate reaction time, simple reaction conditions, and use of a green reaction solvent. The
structure of thiadiazoles was determined based on the spectroscopic data.
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Affiliation(s)
- Azizollah Habibi
- Department of Organic Chemistry, Faculty of Chemistry, Kharazmi University, No. 43, Mofatteh Street, Enghelab Ave., P. Code 15719-14911; Tehran, Iran
| | - Sahar Khosravi
- Department of Organic Chemistry, Faculty of Chemistry, Kharazmi University, No. 43, Mofatteh Street, Enghelab Ave., P. Code 15719-14911; Tehran, Iran
| | - Seyyed M. Shahcheragh
- Department of Organic Chemistry, Faculty of Chemistry, Kharazmi University, No. 43, Mofatteh Street, Enghelab Ave., P. Code 15719-14911; Tehran, Iran
| | - Mohd B. Abdul Rahman
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor Darul Ehsan, Malaysia
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Kim YJ, Kwon HJ, Han SY, Gong YD. Synthesis of 2-Amino-5-Carboxamide Thiazole Derivatives via Dehydrative Cyclization of Thiourea Intermediate Resin on Solid Phase. ACS COMBINATORIAL SCIENCE 2019; 21:380-388. [PMID: 30848875 DOI: 10.1021/acscombsci.9b00001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
In this study, we synthesized 2-amino-5-carboxamide thiazole derivatives on solid phase. The synthesis of the library starts with the reductive amination of the 4-formyl-3-methoxy phenoxy resin to prevent isomer formation. The dehydrative cyclization of thiourea intermediate resin, which is the key step in the synthetic process, was successfully synthesized using α-bromoketone in the presence of the DMF so as to afford 2-amino-5-carboxylate thiazole resin. The resulting resin is coupled with various amines. Finally, the 2-amino-5-carboxamide thiazole resin was cleaved from the polymer support using a TFA and DCM cocktail. The physicochemical properties of the proposed 2-amino-5-carboxamide thiazole derivatives were calculated and showed potential to be an reasonable oral bioavailability drug properties as determined by Lipinski's Rule.
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Affiliation(s)
- Ye-Ji Kim
- Innovative Drug Library Research Center, Department of Chemistry, College of Science, Dongguk University, 30, Pildong-ro 1-gil, Jung-gu, Seoul 04620, Korea
| | - Hye-Jin Kwon
- Innovative Drug Library Research Center, Department of Chemistry, College of Science, Dongguk University, 30, Pildong-ro 1-gil, Jung-gu, Seoul 04620, Korea
| | - Si-Yeon Han
- Innovative Drug Library Research Center, Department of Chemistry, College of Science, Dongguk University, 30, Pildong-ro 1-gil, Jung-gu, Seoul 04620, Korea
| | - Young-Dae Gong
- Innovative Drug Library Research Center, Department of Chemistry, College of Science, Dongguk University, 30, Pildong-ro 1-gil, Jung-gu, Seoul 04620, Korea
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9
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Aghaalizadeh T, Nasiri F, Sabahi-Agabager L. Synthesis of new 2-amino-4H-thiopyran derivatives via the one-pot reaction between 3,4-dihydro-3-((benzylamino)methylene)-4-thioxochromen-2-ones and alkyl-2-cyanoacetates in the presence of nano-ZnO catalysis. J Sulphur Chem 2018. [DOI: 10.1080/17415993.2018.1502293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Tooran Aghaalizadeh
- Department of Applied Chemistry, Faculty of Science, University of Mohaghegh Ardabili, Ardabil, Iran
| | - Farough Nasiri
- Department of Applied Chemistry, Faculty of Science, University of Mohaghegh Ardabili, Ardabil, Iran
| | - Leila Sabahi-Agabager
- Department of Applied Chemistry, Faculty of Science, University of Mohaghegh Ardabili, Ardabil, Iran
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10
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Abdildinova A, Gong YD. Current Parallel Solid-Phase Synthesis of Drug-like Oxadiazole and Thiadiazole Derivatives for Combinatorial Chemistry. ACS COMBINATORIAL SCIENCE 2018; 20:309-329. [PMID: 29714475 DOI: 10.1021/acscombsci.8b00044] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Solid-phase organic synthesis is a powerful tool in the synthesis of small organic molecules and building of libraries of compounds for drug discovery. Heterocyclic compounds are important components of the drug discovery field as well and serve as a core for hundreds of marketed drugs. In particular, oxadiazole and thiadiazole cores are compounds of great interest due to their comprehensive biological activities and structural features. Therefore, a plethora of oxadiazole and thiadiazole synthesis methodologies have been reported to date, including solution and solid-phase synthesis methodologies. In this review, we concentrate on and summarize solid-phase synthetic approaches of the oxadiazole and thiadiazole derivatives.
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Affiliation(s)
- Aizhan Abdildinova
- Innovative Drug Library Research Center, Department of Chemistry, College of Science, Dongguk University, 26, 3-ga, Pil-dong, Jung-gu, Seoul 04620, Korea
| | - Young-Dae Gong
- Innovative Drug Library Research Center, Department of Chemistry, College of Science, Dongguk University, 26, 3-ga, Pil-dong, Jung-gu, Seoul 04620, Korea
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11
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Nano-Fe3O4@SiO2–TiCl3 as a novel nano-magnetic catalyst for the synthesis of 4H-pyrimido[2,1-b]benzothiazoles. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3498-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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12
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Ryu HJ, Yang SJ, Lee GH, Gong YD. Construction of Druglike 2-Amido Benzo[ d]imidazole Analogues via Desulfurative Cyclization of Thiourea Intermediate Resin on Solid-Phase. ACS COMBINATORIAL SCIENCE 2018; 20:282-291. [PMID: 29557646 DOI: 10.1021/acscombsci.8b00004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A 2-amido benzo[ d]imidazole library has been constructed by solid-phase synthesis. The key step of this solid-phase synthesis involves the preparation of polymer-bound 2-amino benzo[ d]imidazole resin through desulfurative cyclization of thiourea resin using 2-chloro-1,3-dimethylimidazolinium chloride and N, N-diisopropylethylamine in dichloromethane (DCM), and the resin is then functionalized by acylation at the 2-amine position to afford 2-amidobenzo[ d]imidazole resin. In the case of 2-amidobenzo[ d]imidazole resin having a p-I or m-NO2, the resin was further functionalized by Suzuki/Sonogashira-coupling ( p-I) and reduction to the primary amine ( m-NO2) followed by acylation. Finally, the functionalized 2-amido-benzo[ d]imidazole resin was cleaved from the polymer support by treatment with a cocktail of trifluoroacetic acid and DCM. As a result, we obtained 2-amidobenzo[ d]imidazole analogues in high yield and good purities.
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Affiliation(s)
- Hyun-Jeong Ryu
- Innovative Drug Library Research Center, Department of Chemistry, College of Science, Dongguk University, 26, 3-ga, Pil-dong, Jung-gu, Seoul 100-715, Korea
| | - Seung-Ju Yang
- Innovative Drug Library Research Center, Department of Chemistry, College of Science, Dongguk University, 26, 3-ga, Pil-dong, Jung-gu, Seoul 100-715, Korea
| | - Gee-Hyung Lee
- Innovative Drug Library Research Center, Department of Chemistry, College of Science, Dongguk University, 26, 3-ga, Pil-dong, Jung-gu, Seoul 100-715, Korea
| | - Young-Dae Gong
- Innovative Drug Library Research Center, Department of Chemistry, College of Science, Dongguk University, 26, 3-ga, Pil-dong, Jung-gu, Seoul 100-715, Korea
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13
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Affiliation(s)
- Navjeet Kaur
- Department of Chemistry, Banasthali University, Banasthali, India
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14
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Park K, Lee HE, Lee SH, Lee D, Lee T, Lee YM. Molecular and functional evaluation of a novel HIF inhibitor, benzopyranyl 1,2,3-triazole compound. Oncotarget 2018; 8:7801-7813. [PMID: 27999195 PMCID: PMC5352362 DOI: 10.18632/oncotarget.13955] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 12/01/2016] [Indexed: 12/21/2022] Open
Abstract
Hypoxia occurs in a variety of pathological events, including the formation of solid tumors. Hypoxia-inducible factor (HIF)-1α is stabilized under hypoxic conditions and is a key molecule in tumor growth and angiogenesis. Seeking to develop novel cancer therapeutics, we investigated small molecules from our in-house chemical libraries to target HIF-1α. We employed a dual-luciferase assay that uses a luciferase (Luc) reporter vector harboring five copies of hypoxia-responsive element (HRE) in the promoter. Under hypoxic conditions that increased Luc reporter activity by four-fold, we screened 144 different compounds, nine of which showed 30–50% inhibition of hypoxia-induced Luc reporter activity. Among these, “Compound 12, a benzopyranyl 1,2,3-triazole” was the most efficient at inhibiting the expression of HIF-1α under hypoxic conditions, reducing its expression by 80%. Under hypoxic conditions, the half maximal IC50 of the compound was 24 nM in HEK-293 human embryonic kidney cells, and 2 nM in A549 human lung carcinoma cells. Under hypoxic conditions, Compound 12 increased hydroxylated HIF-1α levels and HIF-1α ubiquitination, and also dose-dependently decreased HIF-1α target gene expression as well as vascular endothelial growth factor (VEGF) secretion. Furthermore, this compound inhibited VEGF-induced in vitro angiogenesis in human umbilical vein endothelial cells (HUVECs), and in vivo, it inhibited chick chorioallantoic membrane angiogenesis. In allogaft assays, cotreatment with Compound 12 and gefitinib significantly inhibited tumor growth and angiogenesis. Compound 12 can be a novel inhibitor of HIF-1α by accelerating its degradation, and shows much potential as an anti-cancer agent through its ability to suppress tumor growth and angiogenesis.
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Affiliation(s)
- Kyunghye Park
- BK21 Plus KNU Multi-Omics based Creative Drug Research Team, National Basic Research Laboratory of Vascular Homeostasis Regulation, Kyungpook National University, Buk-gu, 702-701, Daegu, Republic of Korea
| | - Hye Eun Lee
- BK21 Plus KNU Multi-Omics based Creative Drug Research Team, National Basic Research Laboratory of Vascular Homeostasis Regulation, Kyungpook National University, Buk-gu, 702-701, Daegu, Republic of Korea
| | - Sun Hee Lee
- BK21 Plus KNU Multi-Omics based Creative Drug Research Team, National Basic Research Laboratory of Vascular Homeostasis Regulation, Kyungpook National University, Buk-gu, 702-701, Daegu, Republic of Korea
| | - Doohyun Lee
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Buk-gu, 702-701, Daegu, Republic of Korea
| | - Taeho Lee
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Buk-gu, 702-701, Daegu, Republic of Korea
| | - You Mie Lee
- BK21 Plus KNU Multi-Omics based Creative Drug Research Team, National Basic Research Laboratory of Vascular Homeostasis Regulation, Kyungpook National University, Buk-gu, 702-701, Daegu, Republic of Korea.,College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Buk-gu, 702-701, Daegu, Republic of Korea
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15
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Ha JE, Yang SJ, Gong YD. Construction of 1,3,4-Oxadiazole and 1,3,4-Thiadiazole Library with a High Level of Skeletal Diversity Based on Branching Diversity-Oriented Synthesis on Solid-Phase Supports. ACS COMBINATORIAL SCIENCE 2018; 20:82-97. [PMID: 29309123 DOI: 10.1021/acscombsci.7b00174] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
An efficient solid-phase synthetic route for the construction of 1,3,4-oxadiazole and 1,3,4-thiadiazole libraries based on branching diversity-oriented synthesis (DOS) has been developed in this study. The core skeleton resins, 1,3,4-oxadiazole and 1,3,4-thiadiazole, were obtained through desulfurative and dehydrative cyclizations of thiosemicarbazide resin, respectively. Various functional groups have been introduced to the core skeleton resins, such as aryl, amine, amide, urea, thiourea, and an amino acid. Most of the libraries were purified by simple trituration without extraction or column chromatography after cleavage of the products from the solid-supported resin. As a result, we obtained high yields of pure 1,3,4-oxadiazole and 1,3,4-thiadiazole derivatives (total numbers = 128). Finally, we confirmed the drug-like properties of our library by calculation of physicochemical properties, displays of the skeletal diversities of the library in 3D-space, and occupation of a broad range of areas by their functional groups.
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Affiliation(s)
- Ji-Eun Ha
- Innovative Drug Library Research
Center, Department of Chemistry, College of Science, Dongguk University, 26, 3-ga, Pil-dong Jung-gu, Seoul 100-715, Korea
| | - Seung-Ju Yang
- Innovative Drug Library Research
Center, Department of Chemistry, College of Science, Dongguk University, 26, 3-ga, Pil-dong Jung-gu, Seoul 100-715, Korea
| | - Young-Dae Gong
- Innovative Drug Library Research
Center, Department of Chemistry, College of Science, Dongguk University, 26, 3-ga, Pil-dong Jung-gu, Seoul 100-715, Korea
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16
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Palchykov VA, Chabanenko RM, Konshin VV, Dotsenko VV, Krivokolysko SG, Chigorina EA, Horak YI, Lytvyn RZ, Vakhula AA, Obushak MD, Mazepa AV. Dihydro-2H-thiopyran-3(4H)-one-1,1-dioxide – a versatile building block for the synthesis of new thiopyran-based heterocyclic systems. NEW J CHEM 2018. [DOI: 10.1039/c7nj03846a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Three series of new cyclic sulfones have been prepared by a one-pot multi-component reactions.
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Affiliation(s)
- Vitalii A. Palchykov
- Department of Organic Chemistry
- Oles Honchar Dnipro National University
- 49010 Dnipro
- Ukraine
| | - Roman M. Chabanenko
- Department of Organic Chemistry
- Oles Honchar Dnipro National University
- 49010 Dnipro
- Ukraine
| | - Valeriy V. Konshin
- Department of Chemistry & High Technologies
- Kuban State University
- 350040 Krasnodar
- Russian Federation
| | - Victor V. Dotsenko
- Department of Chemistry & High Technologies
- Kuban State University
- 350040 Krasnodar
- Russian Federation
- Department of Chemistry
| | - Sergey G. Krivokolysko
- Department of Chemistry & High Technologies
- Kuban State University
- 350040 Krasnodar
- Russian Federation
| | - Elena A. Chigorina
- Federal State Unitary Enterprise “State Scientific Research Institute of Chemical Reagents and High Purity Chemical Substances” (FSUE “IREA”)
- 107076 Moscow
- Russian Federation
| | - Yuriy I. Horak
- Department of Organic Chemistry
- Ivan Franko National University of Lviv
- 79005 Lviv
- Ukraine
| | - Roman Z. Lytvyn
- Department of Organic Chemistry
- Ivan Franko National University of Lviv
- 79005 Lviv
- Ukraine
| | - Andriy A. Vakhula
- Department of Organic Chemistry
- Ivan Franko National University of Lviv
- 79005 Lviv
- Ukraine
| | - Mykola D. Obushak
- Department of Organic Chemistry
- Ivan Franko National University of Lviv
- 79005 Lviv
- Ukraine
| | - Alexander V. Mazepa
- A. V. Bogatsky Physico-Chemical Institute
- National Academy of Sciences of Ukraine
- 65080 Odessa
- Ukraine
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17
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Kaur N, Jangid NK, Sharma V. Metal- and nonmetal-catalyzed synthesis of five-membered S,N-heterocycles. J Sulphur Chem 2017. [DOI: 10.1080/17415993.2017.1415338] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Navjeet Kaur
- Department of Chemistry, Banasthali University, Banasthali, India
| | | | - Vivek Sharma
- Department of Chemistry, Banasthali University, Banasthali, India
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Yoon HJ, Yang SJ, Gong YD. Synthesis of 2-Alkoxy/Thioalkoxy Benzo[d]imidazoles and 2-Thione Benzo[d]imidazoles via a Phase-Based, Chemoselective Reaction. ACS COMBINATORIAL SCIENCE 2017; 19:738-747. [PMID: 29095593 DOI: 10.1021/acscombsci.7b00106] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
2-Alkoxy/thioalkoxy benzo-[d]-imidazole and 2-thione benzo-[d]-imidazole libraries were constructed in solution phase and on solid phase, respectively. The key step in this work is the phase-based chemoselective reaction of the 2-mercaptobenzo-[d]-imidazole intermediate with benzyl chloride (solution phase) and Merrifield resin (solid phase). In the solution-phase case, benzyl chloride reacted with the thiol group of 2-mercaptobenzo-[d]-imidazole, whereas in the solid-phase case, Merrifield resin was introduced at an internal amine group of benzo-[d]-imidazole. To afford the desired 2-alkoxy/thioalkoxy benzo-[d]-imidazole analogues, we used various alkyl halides, alcohols, and thiols in solution phase, and to obtain 2-thione benzo-[d]-imidazole derivatives on solid phase, we used diverse alkyl halides and boronic acids. Finally, to measure the drug potential to be orally active and the molecular diversity in three-dimensional (3D) space, we calculated physicochemical properties and displayed energy-minimized 3D structures. As a result, the libraries from solution phase and solid phase show distinct features in physicochemical properties and skeletal diversities in 3D space.
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Affiliation(s)
- Hyo-Jeong Yoon
- Innovative Drug Library Research
Center, Department of Chemistry, College of Science, Dongguk University, 26, 3-ga, Pil-dong Jung-gu, Seoul 100-715, Korea
| | - Seung-Ju Yang
- Innovative Drug Library Research
Center, Department of Chemistry, College of Science, Dongguk University, 26, 3-ga, Pil-dong Jung-gu, Seoul 100-715, Korea
| | - Young-Dae Gong
- Innovative Drug Library Research
Center, Department of Chemistry, College of Science, Dongguk University, 26, 3-ga, Pil-dong Jung-gu, Seoul 100-715, Korea
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19
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Khillare LD, Pratap UR, Bhosle MR, Dhumal ST, Bhalerao MB, Mane RA. Syntheses of biodynamic heterocycles: baker’s yeast-assisted cyclocondensations of organic nucleophiles and phenacyl chlorides. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-017-2880-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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20
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Halimehjani AZ, Martens J, Schlüter T. A one-pot three-component synthesis of dithiocarbamates starting from vinyl pyridines and vinyl pyrazine under solvent- and catalyst-free conditions. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.05.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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21
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Li T, Yang L, Ni K, Shi Z, Li F, Chen D. An efficient approach to construct benzisothiazol-3(2H)-ones via copper-catalyzed consecutive reaction of 2-halobenzamides and carbon disulfide. Org Biomol Chem 2016; 14:6297-303. [PMID: 27273742 DOI: 10.1039/c6ob00819d] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
An efficient copper-catalyzed reaction for the synthesis of benzisothiazol-3(2H)-ones has been developed, starting from easily available 2-halobenzamides and carbon disulfide, which gave the corresponding target products in 30-89% yield for 25 examples. The reaction proceeds via a consecutive process with S-C bond and S-N bond formation.
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Affiliation(s)
- Ting Li
- Department of Medicinal Chemistry, School of Pharmacy, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, China.
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22
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Juvekar V, Gong YD. Pyroacm Resin: An Acetamidomethyl Derived Resin for Solid Phase Synthesis of Peptides through Side Chain Anchoring of C-Terminal Cysteine Residues. Org Lett 2016; 18:836-9. [DOI: 10.1021/acs.orglett.6b00115] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Vinayak Juvekar
- Innovative
Drug Library Research Center, Dongguk University, Seoul 100-715, South Korea
| | - Young Dae Gong
- Innovative
Drug Library Research Center, Dongguk University, Seoul 100-715, South Korea
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23
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Yang SJ, Choe JH, Abdildinova A, Gong YD. A Highly Efficient Diversification of 2-Amino/Amido-1,3,4-oxadiazole and 1,3,4-Thiadiazole Derivatives via Reagent-Based Cyclization of Thiosemicarbazide Intermediate on Solid-Phase. ACS COMBINATORIAL SCIENCE 2015; 17:732-41. [PMID: 26524617 DOI: 10.1021/acscombsci.5b00140] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A 2-amino/amido-1,3,4-oxadiazole and 1,3,4-thiadiazole library has been constructed on solid-phase organic synthesis. The key step on this solid-phase synthesis involves the preparation of polymer-bound 2-amino-1,3,4-oxadiazole and 1,3,4-thiadiazole core skeleton resin by cyclization of thiosemicarbazide with EDC·HCl and p-TsCl, respectively. The resulting core skeleton undergoes functionalization reaction with various electrophiles such as alkyl halides, and acid chlorides to generate N-alkylamino and N-acylamino-1,3,4-oxadiazole, and 1,3,4-thiadiazole resin, respectively. Finally, the 2-amino and 2-amido-1,3,4-oxadiazole and 1,3,4-thiadiazole library was then generated in good yields and high purities by cleavage of the respective resin under trifluoroacetic acid(TFA) in dichloromethane(DCM). The constructed library shows reasonable, oral bioavailability drug properties as determine by using the Lipinski's Rule and similar parameters.
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Affiliation(s)
- Seung-Ju Yang
- Innovative Drug Library Research
Center, Department of Chemistry, College of Science, Dongguk University, 26, 3-ga, Pil-dong Jung-gu, Seoul 100-715, Korea
| | - Ji-Hye Choe
- Innovative Drug Library Research
Center, Department of Chemistry, College of Science, Dongguk University, 26, 3-ga, Pil-dong Jung-gu, Seoul 100-715, Korea
| | - Aizhan Abdildinova
- Innovative Drug Library Research
Center, Department of Chemistry, College of Science, Dongguk University, 26, 3-ga, Pil-dong Jung-gu, Seoul 100-715, Korea
| | - Young-Dae Gong
- Innovative Drug Library Research
Center, Department of Chemistry, College of Science, Dongguk University, 26, 3-ga, Pil-dong Jung-gu, Seoul 100-715, Korea
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Efficient Syntheses of 1,2,3-Triazoloamide Derivatives Using Solid- and Solution-Phase Synthetic Approaches. Molecules 2015; 20:19984-20013. [PMID: 26556332 PMCID: PMC6332172 DOI: 10.3390/molecules201119673] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 10/28/2015] [Accepted: 10/29/2015] [Indexed: 11/17/2022] Open
Abstract
Efficient synthetic routes for the preparation of secondary and tertiary 1,2,3-triazoloamide derivatives were developed. A secondary α-1,2,3-triazoloamide library was constructed and expanded by a previously developed solid-phase synthetic route and a tertiary 1,2,3-triazoloamide library was constructed by a parallel solution-phase synthetic route. The synthetic routes rely on amide formation with secondary amines and chloro-acid chlorides; SN2 reaction with sodium azide; and the selective [3 + 2] Hüisgen cycloaddition with appropriate terminal alkynes. The target secondary and tertiary 1,2,3-triazoloamide derivatives were obtained with three-diversity points in excellent overall yields and purities using the reported solid- and solution-phase synthetic routes, respectively.
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Kim N, Kwak SH, Lee SH, Juvekar V, Lee BI, Ahn HC, Kim SY, Gong YD. Novel 3-arylethynyl-substituted thieno[3,4-b]pyrazine derivatives as human transglutaminase 2 inhibitors. Org Biomol Chem 2015; 12:4932-40. [PMID: 24879506 DOI: 10.1039/c4ob00179f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In the process of optimization, we developed a novel core skeleton of thieno[3,4-b]pyrazine via GK-13. The derivatives synthesized were shown to inhibit TGase 2 activity in cancer cells. Some of the hit compounds such as the arylethynyl group-coupled thieno[3,4-b]pyrazine derivatives were shown to exhibit promising activity for use as potential therapeutic small-molecules in renal cancer by inhibiting TGase 2 activity.
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Affiliation(s)
- Nayeon Kim
- Innovative Drug Library Research Center, Dongguk University, Seoul, 100-715, Republic of Korea.
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Kaur N. Application of Microwave Irradiation in the Synthesis of Fused Six-Membered Heterocycles with N-Heteroatom. SYNTHETIC COMMUN 2014. [DOI: 10.1080/00397911.2013.816734] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Navjeet Kaur
- a Department of Chemistry , Banasthali University , Banasthali , Rajasthan , India
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27
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Solid-phase synthesis of benzazoles, quinazolines, and quinazolinones using an alkoxyamine linker. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.08.095] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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28
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Lee GH, Lee SJ, Jeong DY, Kim HY, Lee D, Lee T, Hwang JY, Park WK, Kong JY, Cho H, Gong YD. Discovery of a Novel 2,6-Difunctionalized 2H-Benzopyran Inhibitors Toward Sphingosylphosphorylcholine Synthetic Pathway as New Anti-inflammatory Target. B KOREAN CHEM SOC 2014. [DOI: 10.5012/bkcs.2014.35.8.2385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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29
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Kaur N, Dwivedi J, Kishore D. Solid-Phase Synthesis of Nitrogen-Containing Five-Membered Heterocycles. SYNTHETIC COMMUN 2014. [DOI: 10.1080/00397911.2013.773352] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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30
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Nasiri F, Zolali A, Ahmadiazar M. A convenient solvent-free and one-pot synthesis of 4-hydroxythiazolidine-2-thiones. J Sulphur Chem 2014. [DOI: 10.1080/17415993.2014.907407] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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31
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Hu Y, Li CY, Wang XM, Yang YH, Zhu HL. 1,3,4-Thiadiazole: synthesis, reactions, and applications in medicinal, agricultural, and materials chemistry. Chem Rev 2014; 114:5572-610. [PMID: 24716666 DOI: 10.1021/cr400131u] [Citation(s) in RCA: 328] [Impact Index Per Article: 32.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Yang Hu
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University , Nanjing 210093, People's Republic of China
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32
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Ku BM, Kim SJ, Kim N, Hong D, Choi YB, Lee SH, Gong YD, Kim SY. Transglutaminase 2 inhibitor abrogates renal cell carcinoma in xenograft models. J Cancer Res Clin Oncol 2014; 140:757-67. [PMID: 24610445 DOI: 10.1007/s00432-014-1623-5] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Accepted: 02/12/2014] [Indexed: 02/07/2023]
Abstract
PURPOSE To test whether transglutaminase 2 (TGase 2) inhibitor GK921 alone reverses renal cell carcinoma (RCC) tumor growth. RCC is resistant to both radiation and chemotherapy, and the prognosis remains poor. Despite the recent therapeutic success of vascular endothelial growth factor inhibition in RCC, approximately one-third of RCC patients develop metastatic disease. The expression of TGase 2 is markedly increased in most RCC cell lines, as well as in clinical samples. METHODS Previously, we introduced the quinoxaline derivative GK13 as a lead compound for TGase 2 inhibitor. The inhibitory effect of GK13 on TGase 2 was improved in GK921 (3-(phenylethynyl)-2-(2-(pyridin-2-yl)ethoxy)pyrido[3,2-b]pyrazine). GK921 efficacy was tested using sulforhodamine in vitro as well as a xenograft tumor models using ACHN and CAKI-1 RCC cells. RESULTS GK921 showed cytotoxicity to RCC (average GI50 in eight RCC cell lines: 0.905 μM). A single treatment with GK921 almost completely reduced tumor growth by stabilizing p53 in the ACHN and CAKI-1 preclinical xenograft tumor models. CONCLUSION TGase 2 inhibitor GK921 abrogates RCC growth in xenograft tumor models, suggesting the possibility of a new therapeutic approach to RCC.
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Affiliation(s)
- Bo Mi Ku
- Cancer Cell and Molecular Biology Branch, Division of Cancer Biology, Research Institute, National Cancer Center, Goyang, Republic of Korea
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33
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Wang Y, Zhu B, Xu Q, Zhu Q, Yu L. Synthesis of heterocycle-tethered acylbenzofurans and benzodifurans from odorless and recyclable organoseleno polystyrene resin. RSC Adv 2014. [DOI: 10.1039/c4ra08441a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Recyclable organoseleno resin-supported solid-phase synthesis (SPS) provided a quick access to heterocycle-tethered acylbenzofurans and benzodifurans in satisfactory overall yields and purities after multiple step reactions.
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Affiliation(s)
- Yuguang Wang
- College of Biological and Environmental Engineering
- Zhejiang University of Technology
- Hangzhou, P. R. China
| | - Bingchun Zhu
- College of Biological and Environmental Engineering
- Zhejiang University of Technology
- Hangzhou, P. R. China
- Zhejiang Research Institute of Chemical Industry
- Hangzhou, P. R. China
| | - Qing Xu
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou, China
| | - Qing Zhu
- College of Biological and Environmental Engineering
- Zhejiang University of Technology
- Hangzhou, P. R. China
| | - Lei Yu
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou, China
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34
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Lee D, Seo YH, Bae JS, Lee S, Lee TI, Gong YD, Lee T. An Efficient and Regioselective Synthesis of 2,3-Disubstituted 6-Aminoquinoxaline Derivatives Using Alkoxylation and Microwave-assisted Sonogashira Coupling. B KOREAN CHEM SOC 2013. [DOI: 10.5012/bkcs.2013.34.8.2522] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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35
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Microwave-assisted synthesis of five-membered S-heterocycles. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2013. [DOI: 10.1007/s13738-013-0325-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Anti-cancer effect of a quinoxaline derivative GK13 as a transglutaminase 2 inhibitor. J Cancer Res Clin Oncol 2013; 139:1279-94. [PMID: 23604466 DOI: 10.1007/s00432-013-1433-1] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2013] [Accepted: 03/27/2013] [Indexed: 12/26/2022]
Abstract
PURPOSE Transglutaminase 2 (TGase 2), a cross-linking enzyme, plays an important role in both pro-survival and anti-apoptosis during oncogenesis. For instance, TGase 2 induces NF-κB activation through I-κBα polymerization, which leads to the increase of pro-survival factors such as BCl-2. TGase 2 also suppresses apoptosis via depletion of caspase 3 and cathepsin D. Therefore, a specific TGase 2 inhibitor may become a very useful treatment for cancer showing high levels of TGase 2 expression. METHODS By small-molecule library screening, we managed to locate a competitive TGase 2 inhibiting quinoxaline compound (GK13) from 50 other quinoxaline derivatives. The 50 compounds that were screened represent a thousand structurally diverse, potentially pharmaceutical heterocyclic compound libraries, including benzopyrans, oxadiazoles, thiadiazoles, and quinoxalines. By measuring GI50, TGI, and LC50 using SRB assay, GK13 was selected. RESULTS In vitro enzyme kinetics using guinea pig liver TGase 2 showed that IC50 value was about 16.4 E-6 M. GK13 inhibits TGase 2-mediated I-κBα polymerization in a dose-dependent manner. LC50 of GK13 showed greater efficacy as 4.3E-4 M than LC50 of doxorubicin that showed efficacy as 3.87E-3 M in NCC72 composing 11 tissue origins and 72 cancer cell lines. CONCLUSION GK13 showed a possibility that quinoxaline derivatives may be effective for anti-cancer activity via TGase 2 inhibition.
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37
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Kaur N, Kishore D. Solid-Phase Synthesis of Sulfur Containing Heterocycles. PHOSPHORUS SULFUR 2013. [DOI: 10.1080/10426507.2012.760563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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38
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Yang SJ, Lee SH, Kwak HJ, Gong YD. Regioselective synthesis of 2-amino-substituted 1,3,4-oxadiazole and 1,3,4-thiadiazole derivatives via reagent-based cyclization of thiosemicarbazide intermediate. J Org Chem 2012; 78:438-44. [PMID: 23215154 DOI: 10.1021/jo302324r] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A regioselective, reagent-based method for the cyclization reaction of 2-amino-1,3,4-oxadiazole and 2-amino-1,3,4-thiadiazole core skeletons is described. The thiosemicarbazide intermediate 3 was reacted with EDC·HCl in DMSO or p-TsCl, triethylamine in N-methyl-2-pyrrolidone to give the corresponding 2-amino-1,3,4-oxadiazoles 4 and 2-amino-1,3,4-thiadiazoles 5 through regioselcective cyclization processes. The regioselectivity was affected by both R(1) and R(2) in p-TsCl mediated cyclization. It is shown in select sets of thiosemicarbazide 3 with R(1)(benzyl) and R(2)(phenyl). 2-Amino-1,3,4-oxadiazole 4 was also shown in the reaction of p-TsCl mediated cyclization. The resulting 2-amino-1,3,4-oxadiazole and 2-amino-1,3,4-thiadiazole core skeleton are functionalized with various electrophiles such as alkyl halide, acid halides, and sulfornyl chloride in high yields.
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Affiliation(s)
- Seung-Ju Yang
- Center for Innovative Drug Library Research, Department of Chemistry, College of Science, Dongguk University, 26, 3-ga, Pil-dong Jung-gu, Seoul 100-715, Korea
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Jung SL, Kim SG, Lee GH, Gong YD. An Efficient Solid-phase Parallel Synthesis of 2-Amino and 2-Amidobenzo[d]oxazole Derivatives via Cyclization Reactions of 2-Hydroxyphenylthiourea Resin. B KOREAN CHEM SOC 2012. [DOI: 10.5012/bkcs.2012.33.12.4109] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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40
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Lee T, Gong YD, Min KH. Synthesis and Biological Activity of Benzopyranyl Urea and Benzopyranyl Thiourea Derivatives as MDR Reversal Agents. B KOREAN CHEM SOC 2012. [DOI: 10.5012/bkcs.2012.33.11.3857] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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41
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Gong YD, Dong MS, Lee SB, Kim N, Bae MS, Kang NS. A novel 3-arylethynyl-substituted pyrido[2,3,-b]pyrazine derivatives and pharmacophore model as Wnt2/β-catenin pathway inhibitors in non-small-cell lung cancer cell lines. Bioorg Med Chem 2011; 19:5639-47. [PMID: 21855350 DOI: 10.1016/j.bmc.2011.07.028] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2011] [Revised: 07/14/2011] [Accepted: 07/15/2011] [Indexed: 11/18/2022]
Abstract
We developed Wnt/β-catenin inhibitors by identifying 13 number of 3-arylethynyl-substituted pyrido[2,3,-b]pyrazine derivatives that were able to inhibit the Wnt/β-catenin signal pathway and cancer cell proliferation. In the optimization process, a series of 2,3,6-trisubstituted pyrido[2,3,-b]pyrazine core skeletons showed were shown to higher activity than 2,3,6-trisubstituted quinoxaline's and thus hold promise for use as potential small-molecule inhibitors of the Wnt/β-catenin signal pathway in non-small-cell lung cancer cell (NSCLC) lines. And we have studied the pharmacophore mapping for compound 954, which presented the highest activity with a fit value of 2.81. The pharmacophore mapping for the compounds including 954, pyrido[2,3,-b]pyrazine core had hydrogen-bond acceptor site and hydrophobic center roles.
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Affiliation(s)
- Young-Dae Gong
- Center for Innovative Drug Library Research, Dongguk University, Pil-dong 3-ga, Jung-gu, Seoul 100-715, Republic of Korea.
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Gong YD, Min KH, Lee TH. An Efficient Solid-Phase Synthesis of α-1,2,3-Triazoloamide Derivatives via Click Chemistry. B KOREAN CHEM SOC 2011. [DOI: 10.5012/bkcs.2011.32.7.2453] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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