1
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Wang S, Gan L, Han L, Deng P, Li Y, He D, Chi H, Zhu L, Li Y, Long R, Gan Z. Design, synthesis, and biological evaluation of naphthalene imidazo[1,2-b]pyridazine hybrid derivatives as VEGFR selective inhibitors. Arch Pharm (Weinheim) 2024:e2400411. [PMID: 39008876 DOI: 10.1002/ardp.202400411] [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: 05/24/2024] [Revised: 06/21/2024] [Accepted: 06/21/2024] [Indexed: 07/17/2024]
Abstract
The vascular endothelial growth factor receptor (VEGFR) is a receptor tyrosine kinase that is regarded as an emerging target for abnormal angiogenesis diseases. In this study, novel naphthalene imidazo[1,2-b]pyridazine hybrids as VEGFR selective inhibitors were designed and synthesized using a scaffold hopping strategy based on ponatinib, a multitarget kinase inhibitor. Among the evaluated compounds, derivative 9k (WS-011) demonstrated the most potent inhibitory potency against VEGFR-2 (IC50 = 8.4 nM) and displayed superior VEGFR selectivity over a panel of 70 kinases compared with ponatinib. Furthermore, 9k possessed good cytotoxic effects on various cancer cell lines, especially the colon cancer HT-29 cells, with an acceptable oral bioavailability. Moreover, 9k significantly inhibited the migration and invasion of human umbilical vein endothelial cells (HUVEC) cells and induced apoptosis through the upregulation of apoptotic proteins in HT-29 cells. 9k also effectively suppressed the activation of VEGFR-2 signaling pathways, which in turn inhibited the growth of HT-29 cells and the tube formation of HUVECs in vitro. All of the findings revealed that 9k could be considered a promising antiangiogenesis lead that merits further investigation.
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Affiliation(s)
- Shuang Wang
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing, People's Republic of China
| | - LinLing Gan
- Chongqing Engineering Research Center of Pharmaceutical Sciences, School of Pharmacy, Chongqing Medical and Pharmaceutical College, Chongqing, People's Republic of China
| | - Lei Han
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing, People's Republic of China
| | - Ping Deng
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing, People's Republic of China
| | - Yihao Li
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing, People's Republic of China
| | - Dongxiao He
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing, People's Republic of China
| | - Haoze Chi
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing, People's Republic of China
| | - Liwei Zhu
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing, People's Republic of China
| | - Yuehui Li
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing, People's Republic of China
| | - Rui Long
- Department of Pharmacy, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Zongjie Gan
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing, People's Republic of China
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2
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Niu P, Xu H, Fan M. Discovery and optimization of (2-naphthylthio)acetic acid derivative as selective Bfl-1 inhibitor. Bioorg Med Chem Lett 2024; 101:129658. [PMID: 38373466 DOI: 10.1016/j.bmcl.2024.129658] [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: 01/09/2024] [Revised: 02/10/2024] [Accepted: 02/14/2024] [Indexed: 02/21/2024]
Abstract
Bcl-2 anti-apoptotic protein family suppresses cell death by deploying a surface groove to capture the critical BH3 α-helix of pro-apoptotic members. Bfl-1 is a relatively understudied member of this family, though it has been implicated in the pathogenesis and chemoresistance of a variety of human cancers. Reported small molecular Bfl-1 inhibitors encountered the issue of either lack in potency or poor selectivity against its most homologous member Mcl-1. In order to tackle this issue, compound library was screened and a hit compound UMI-77 was identified. We modified its chemical structure to remove the characteristic of PAINS (pan-assay interference compounds), demonstrated the real binding affinity and achieved selectivity against Mcl-1 under the guidance of computational modeling. After optimization 15 was obtained as leading compound to block Bfl-1/BIM interaction in vitro with more than 10-fold selectivity over Mcl-1. We believe 15 is of great value for the exploration of Bfl-1 biological function and its potential as therapeutic target.
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Affiliation(s)
- Pengpeng Niu
- Academy of Medical Engineering and Translational Medicine (AMT), Tianjin University, Tianjin 300072, China; Hangzhou Institute of Medicine, Chinese Academy of Sciences, Hangzhou, Zhejiang 310018, China
| | - Huiqi Xu
- Hangzhou Institute of Medicine, Chinese Academy of Sciences, Hangzhou, Zhejiang 310018, China; College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China
| | - Mengyang Fan
- Hangzhou Institute of Medicine, Chinese Academy of Sciences, Hangzhou, Zhejiang 310018, China; Zhejiang Cancer Hospital, Hangzhou, Zhejiang 310022, China.
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3
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Ramkumar R, Srikriya S, Anbarasan P. Copper(I)-Catalyzed Tandem Aminobenzannulation of Dienyne with Sulfonyl Azide. J Org Chem 2024; 89:3292-3303. [PMID: 38373699 DOI: 10.1021/acs.joc.3c02742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
A general and efficient copper-catalyzed tandem aminobenzannulation of dienyne has been accomplished employing sulfonyl azides as a coupling partner. The reaction involves the formation of both C-C and C-N bonds via the initial generation of copper-catalyzed ketenimine from terminal alkyne and sulfonyl azide followed by electrocyclic ring closure and aromatization. The developed reaction is operationally simple and allows the synthesis of diverse substituted aminonaphthalenes and fused aminoarenes in good to excellent yields with high selectivities.
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Affiliation(s)
- Rajagopal Ramkumar
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Subramanian Srikriya
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Pazhamalai Anbarasan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
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4
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Exploring the Anticancer Effects of Brominated Plastoquinone Analogs with Promising Cytotoxic Activity in MCF-7 Breast Cancer Cells via Cell Cycle Arrest and Oxidative Stress Induction. Pharmaceuticals (Basel) 2022; 15:ph15070777. [PMID: 35890076 PMCID: PMC9318129 DOI: 10.3390/ph15070777] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 06/13/2022] [Accepted: 06/15/2022] [Indexed: 02/04/2023] Open
Abstract
Plastoquinone analogs are privileged structures among the known antiproliferative natural product-based compound families. Exploiting one of these analogs as a lead structure, we report the investigation of the brominated PQ analogs (BrPQ) in collaboration with the National Cancer Institute of Bethesda within the Developmental Therapeutics Program (DTP). These analogs exhibited growth inhibition in the micromolar range across leukemia, non-small cell lung cancer (EKVX, HOP-92, and NCI-H522), colon cancer (HCT-116, HOP-92), melanoma (LOX IMVI), and ovarian cancer (OVCAR-4) cell lines. One brominated PQ analog (BrPQ5) was selected for a full panel five-dose in vitro assay by the NCI’s Development Therapeutic Program (DTP) division to determine GI50, TGI, and LC50 parameters. The brominated PQ analog (BrPQ5) displayed remarkable activity against most tested cell lines, with GI50 values ranging from 1.55 to 4.41 µM. The designed molecules (BrPQ analogs) obeyed drug-likeness rules, displayed a favorable predictive Absorption, Distribution, Metabolism, and Excretion (ADME) profile, and an in silico simulation predicted a possible BrPQ5 interaction with proteasome catalytic subunits. Furthermore, the in vitro cytotoxic activity of BrPQ5 was assessed, and IC50 values for U-251 glioma, MCF-7 and MDA-MB-231 breast cancers, DU145 prostate cancer, HCT-116 colon cancer, and VHF93 fibroblast cell lines were evaluated using an MTT assay. MCF-7 was the most affected cell line, and the effects of BrPQ5 on cell proliferation, cell cycle, oxidative stress, apoptosis/necrosis induction, and proteasome activity were further investigated in MCF-7 cells. The in vitro assay results showed that BrPQ5 caused cytotoxicity in MCF-7 breast cancer cells via cell cycle arrest and oxidative stress induction. However, BrPQ5 did not inhibit the catalytic activity of the proteasome. These results provide valuable insights for further discovery of novel antiproliferative agents.
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5
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Guo Z, Zhao Y, Wang Y, Xie M, Zhang J. Construction of 3-Sulfonyl Naphthalenes via Tandem Reaction of 1,4-Diyn-3-yl Esters with Sodium Sulfinates. J Org Chem 2021; 86:6247-6258. [PMID: 33874722 DOI: 10.1021/acs.joc.1c00038] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Polysubstituted 3-sulfonyl naphthalenes were constructed in good to high yields by AlCl3-mediated tandem reaction of 1,4-diyn-3-yl esters and sodium sulfinates. This reaction proceeded under mild reaction conditions and tolerated a variety of functional groups. Moreover, the mechanistic studies indicated that the initial formation of allene under DBU from 1,4-diyn-3-yl ester and a sequence of nucleophilic addition of sodium sulfinate, the formation of allene, and intramolecular cyclization might be involved.
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Affiliation(s)
- Ziyi Guo
- Key Laboratory of Functional Molecular Solids (Ministry of Education), Anhui Key Laboratory of Molecular Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Yiming Zhao
- Key Laboratory of Functional Molecular Solids (Ministry of Education), Anhui Key Laboratory of Molecular Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Yu Wang
- Key Laboratory of Functional Molecular Solids (Ministry of Education), Anhui Key Laboratory of Molecular Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Meihua Xie
- Key Laboratory of Functional Molecular Solids (Ministry of Education), Anhui Key Laboratory of Molecular Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Jitan Zhang
- Key Laboratory of Functional Molecular Solids (Ministry of Education), Anhui Key Laboratory of Molecular Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
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6
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Li J, Hou X, Bai J, Zhou Y, Chen C, Yang X, Fang H. Synthesis and evaluation of a UMI-77-based fluorescent probe for selective detecting Mcl-1 protein and imaging in living cancer cells. Bioorg Med Chem 2021; 29:115850. [PMID: 33229135 DOI: 10.1016/j.bmc.2020.115850] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 10/06/2020] [Accepted: 11/01/2020] [Indexed: 11/16/2022]
Abstract
Development of efficient fluorescent probes for detecting the overexpressed Mcl-1 protein in living cells is imperative for the diagnosis and treatment of cancers. In this paper, a new UMI-77 based fluorescent probe (DNSH), was synthesized and characterized. DNSH bound to the hydrophobic pockets of Mcl-1 protein tightly and the binding affinity was 20-fold higher than that of previous developed Mcl-1 probe. DNSH exhibited specific fluorescence response to Mcl-1 protein rather than other proteins. In the presence of Mcl-1 protein, fluorescence emission of DNSH can be switched on. Furthermore, fluorescence colocalization experiment demonstrated that DNSH can be successfully used for imaging mitochondrial Mcl-1 protein in human prostate cancer cells without a washing process. These results showed that DNSH may find useful applications in biological research such as tracking Mcl-1 protein in living biological specimens.
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Affiliation(s)
- Jia Li
- Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Science, Cheeloo College of Medicine, Shandong University, Ji'nan, Shandong, PR China
| | - Xuben Hou
- Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Science, Cheeloo College of Medicine, Shandong University, Ji'nan, Shandong, PR China
| | - Jinzhuo Bai
- Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Science, Cheeloo College of Medicine, Shandong University, Ji'nan, Shandong, PR China
| | - Yi Zhou
- Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Science, Cheeloo College of Medicine, Shandong University, Ji'nan, Shandong, PR China
| | - Chen Chen
- Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Science, Cheeloo College of Medicine, Shandong University, Ji'nan, Shandong, PR China
| | - Xinying Yang
- Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Science, Cheeloo College of Medicine, Shandong University, Ji'nan, Shandong, PR China.
| | - Hao Fang
- Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Science, Cheeloo College of Medicine, Shandong University, Ji'nan, Shandong, PR China
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7
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Wu A, Qian H, Zhao W, Sun J. Benzannulation of isobenzopyryliums with electron-rich alkynes: a modular access to β-functionalized naphthalenes. Chem Sci 2020; 11:7957-7962. [PMID: 34094164 PMCID: PMC8163147 DOI: 10.1039/d0sc02502j] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
Described here is a modular strategy for the rapid synthesis of β-functionalized electron-rich naphthalenes, a family of valuable molecules lacking general access previously. Our approach employs an intermolecular benzannulation of in situ generated isobenzopyrylium ions with various electron-rich alkynes, which were not well utilized for this type of reaction before. These reactions not only feature a broad scope, complete regioselectivity, and mild conditions, but also exhibit unusual product divergence depending on the substrate substitution pattern. This divergence allows further expansion of the product diversity. Control experiments provided preliminary insights into the reaction mechanism. A substituent-controlled divergent benzannulation provides rapid access to various β-functionalized naphthalenes from electron-rich alkynes.![]()
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Affiliation(s)
- An Wu
- Department of Chemistry, The Hong Kong University of Science and Technology (HKUST) Clear Water Bay Kowloon Hong Kong SAR China .,HKUST-Shenzhen Research Institute No. 9 Yuexing 1st Rd, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
| | - Hui Qian
- Department of Chemistry, The Hong Kong University of Science and Technology (HKUST) Clear Water Bay Kowloon Hong Kong SAR China .,HKUST-Shenzhen Research Institute No. 9 Yuexing 1st Rd, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
| | - Wanxiang Zhao
- Department of Chemistry, The Hong Kong University of Science and Technology (HKUST) Clear Water Bay Kowloon Hong Kong SAR China .,HKUST-Shenzhen Research Institute No. 9 Yuexing 1st Rd, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
| | - Jianwei Sun
- Department of Chemistry, The Hong Kong University of Science and Technology (HKUST) Clear Water Bay Kowloon Hong Kong SAR China .,HKUST-Shenzhen Research Institute No. 9 Yuexing 1st Rd, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
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8
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Zuo Y, He X, Tang Q, Hu W, Zhou T, Shang Y. Palladium-Catalyzed Cascade Decarboxylative Amination/6- endo-dig Benzannulation of o-Alkynylarylketones with N-Hydroxyamides To Access Diverse 1-Naphthylamine Derivatives. Org Lett 2020; 22:3890-3894. [PMID: 32363874 DOI: 10.1021/acs.orglett.0c01183] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
An efficient and practical one-pot strategy to produce highly substituted 1-naphthylamines via sequential palladium-catalyzed decarboxylative amination/intramolecular 6-endo-dig benzannulation reactions has been described. In this reaction, a broad range of electron-rich, electron-neutral, and electron-deficient o-alkynylarylketones react well with N-hydroxyl aryl/alkylamides to give a diversity of 1-naphthylamines in good to excellent yields under mild reaction conditions. The gram-scale synthesis, with benefits such as undiminished product yield and easy transformation, illustrated the practicality of this method.
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Affiliation(s)
- Youpeng Zuo
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
| | - Xinwei He
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
| | - Qiang Tang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
| | - Wangcheng Hu
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
| | - Tongtong Zhou
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
| | - Yongjia Shang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
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9
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Synthesis, characterization, and biological evaluation of a set of new alkylthio substituted plastoquinones containing ester group. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127433] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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10
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Huang R, Jing X, Huang X, Pan Y, Fang Y, Liang G, Liao Z, Wang H, Chen Z, Zhang Y. Bifunctional Naphthoquinone Aromatic Amide-Oxime Derivatives Exert Combined Immunotherapeutic and Antitumor Effects through Simultaneous Targeting of Indoleamine-2,3-dioxygenase and Signal Transducer and Activator of Transcription 3. J Med Chem 2020; 63:1544-1563. [PMID: 31999451 DOI: 10.1021/acs.jmedchem.9b01386] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Indoleamine-2,3-dioxygenase 1 (IDO1) and signal transducer and activator of transcription 3 (STAT3) are important targets in the tumor microenvironment for cancer therapy. In the present study, a set of naphthoquinone aromatic amide-oxime derivatives were designed, which stimulated the immune response via IDO1 inhibition and simultaneously displayed powerful antitumor activity against three selected cancer cell lines through suppressing STAT3 signaling. The representative compound 8u bound effectively to IDO1, with greater inhibitory activity relative to the commercial IDO1 inhibitor 4-amino-N-(3-chloro-4-fluorophenyl)-N'-hydroxy-1,2,5-oxadiazole-3-carboximidamide (IDO5L) in addition to the efficient suppression of nuclear translocation of STAT3. Consistently, in vivo assays demonstrated a higher antiproliferative activity of compound 8u in both wild-type B16-F10 isograft tumors and an athymic HepG2 xenograft model relative to 1-methyl-l-tryptophan (1-MT) and doxorubicin (DOX). This bifunctional compound with dual immunotherapeutic and anticancer efficacy may represent a new generation of highly efficacious drug candidates for cancer therapy.
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Affiliation(s)
- Rizhen Huang
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China) , School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University , Guilin 541004 , China.,School of Pharmacy , Guilin Medical University , Guilin 541004 , China.,Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research and School of Chemistry and Chemical Engineering , Southeast University , Nanjing 211189 , China
| | - Xiaoteng Jing
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China) , School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University , Guilin 541004 , China
| | - Xiaochao Huang
- Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research and School of Chemistry and Chemical Engineering , Southeast University , Nanjing 211189 , China
| | - Yingming Pan
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China) , School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University , Guilin 541004 , China
| | - Yilin Fang
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China) , School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University , Guilin 541004 , China
| | - Guibin Liang
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China) , School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University , Guilin 541004 , China
| | - Zhixin Liao
- Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research and School of Chemistry and Chemical Engineering , Southeast University , Nanjing 211189 , China
| | - Hengshan Wang
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China) , School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University , Guilin 541004 , China
| | - Zhenfeng Chen
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China) , School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University , Guilin 541004 , China
| | - Ye Zhang
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China) , School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University , Guilin 541004 , China.,School of Pharmacy , Guilin Medical University , Guilin 541004 , China
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11
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Mudithanapelli C, Kim MH. Metal-free late-stage C(sp 2)-H functionalization of N-aryl amines with various sodium salts. Org Biomol Chem 2020; 18:450-464. [PMID: 31799581 DOI: 10.1039/c9ob02217a] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Metal-free consecutive C(sp2)-X (X = Cl, Br, S, N) bond formations of N-aryl amines (cyclic, fused, carbamate, and aminium radicals) were achieved under mild conditions using [bis(trifluoroacetoxy)iodo]benzene (PIFA) and simple nonharmful sodium salts. This direct and selective C(sp2)-H functionalization showed excellent functional group compatibility, cost effectiveness, and late-stage applicability for the synthesis of biologically active natural products. Two mechanisms were proposed to explain the ortho- or para-preference, as well as the accelerating effect of CH3NO2.
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Affiliation(s)
- Chandrashekar Mudithanapelli
- Gachon Institute of Pharmaceutical Science & Department of Pharmacy, College of Pharmacy, Gachon University, 191 Hambakmoeiro, Yeonsu-gu, Incheon 21936, Republic of Korea.
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12
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Verma S, Kumar M, Verma AK. Aza-Henry Reaction: Synthesis of Nitronaphthylamines from 2-(Alkynyl)benzonitriles. Org Lett 2020; 22:130-134. [PMID: 31825635 DOI: 10.1021/acs.orglett.9b04045] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A transition-metal-free approach for construction of nitronaphthylamines has been developed for the first time through aza-henry, chemoselective, and regioselective annulation of 2-alkynylbenzonitriles with nitromethane. In addition, the strategy provides an elegant, operationally simple and atom-economical route for the synthesis of nitroamino substituted heterocyclic scaffolds, featuring a range of sensitive functional groups. The reaction could also devise acetonitrile and acetophenone as nucleophile. The protocol has been successfully implemented for late-stage modification of bioactive molecules.
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Affiliation(s)
- Shalini Verma
- Department of Chemistry , University of Delhi , Delhi 110007 , India
| | - Manoj Kumar
- Department of Chemistry , University of Delhi , Delhi 110007 , India
| | - Akhilesh K Verma
- Department of Chemistry , University of Delhi , Delhi 110007 , India
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13
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Abstract
Aim: The druggability of epigenetic targets has prompted researchers to develop small-molecule therapeutics. However, no systematic assessment has ever been done to investigate the chemical space of epigenetic modulators. Herein, we report a comprehensive chemoinformatic analysis of epigenetic ligands from EpiDBase, HEMD, ChEMBL and PubChem databases. Results: Nearly, 0.45 × 106 ligands were analyzed for assay interference compounds, target profiling, drug-like properties and hit prioritization. After eliminating approximately 96,000 problematic compounds, the remaining 0.36 × 106 compounds were studied for their physicochemical distributions, principal component analysis and hit prioritization. More than 30% of assay interference compounds were determined for many proteins. Conclusion: This systematic assessment of epigenetic ligands will help in the enrichment of screening libraries with high-quality compounds and thus, the generation of efficacious drug candidates.
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14
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Zinc (II) Chloride as Phase Transfer Catalyst and as Catalyst of Cycloaddition Azide Ion to Heterocumulenes and Terminal Alkynes in Organic Solvents. ChemistrySelect 2019. [DOI: 10.1002/slct.201903162] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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15
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Xi D, Niu Y, Li H, Noha SM, Temml V, Schuster D, Wang C, Xu F, Xu P. Discovery of carbazole derivatives as novel allosteric MEK inhibitors by pharmacophore modeling and virtual screening. Eur J Med Chem 2019; 178:802-817. [PMID: 31252285 DOI: 10.1016/j.ejmech.2019.06.027] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 05/27/2019] [Accepted: 06/10/2019] [Indexed: 01/21/2023]
Abstract
We report in this work the discovery of novel allosteric MEK inhibitors by pharmacophore modeling and virtual screening. Two out of 13 virtual hit compounds were identified as MEK kinase inhibitors using a MEK1 binding assay. Structural derivations on the hit compound M100 (IC50 = 27.2 ± 4.5 μM in RAF-MEK cascading assay) by substituent transformation and bioisosterism replacement have led to the synthesis of a small library of carbazoles. The enzymatic studies revealed the preliminary structure-activity relationships and the derivative 22k (IC50 = 12.8 ± 0.5 μM) showed the most potent inhibitory effect against Raf-MEK cascading. Compound 7 was discovered as toxic as M100 to tumor cells whereas safer to HEK293 cells (IC50 > 100 μM) than M100 (IC50 = 8.9 ± 2.0 μM). It suggests that carbazole is a good scaffold for the design of novel MEK inhibitors for therapeutic uses. More importantly, the developed pharmacophore model can serve as a reliable criterion in novel MEK inhibitor discovery.
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Affiliation(s)
- Dandan Xi
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Peking University Health Science Center, 38 Xueyuan Road, Beijing, 100191, China
| | - Yan Niu
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Peking University Health Science Center, 38 Xueyuan Road, Beijing, 100191, China.
| | - Hongyue Li
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Peking University Health Science Center, 38 Xueyuan Road, Beijing, 100191, China
| | - Stefan M Noha
- Institute of Pharmacy/Pharmaceutical Chemistry and Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innrain 80-82, 6020, Innsbruck, Austria
| | - Veronika Temml
- Institute of Pharmacy/Pharmaceutical Chemistry and Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innrain 80-82, 6020, Innsbruck, Austria
| | - Daniela Schuster
- Institute of Pharmacy/Pharmaceutical Chemistry and Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innrain 80-82, 6020, Innsbruck, Austria; Institute of Pharmacy, Department of Pharmaceutical and Medicinal Chemistry, Paracelsus Medical University Salzburg, Strubergasse 21, 5020, Salzburg, Austria.
| | - Chao Wang
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Peking University Health Science Center, 38 Xueyuan Road, Beijing, 100191, China
| | - Fengrong Xu
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Peking University Health Science Center, 38 Xueyuan Road, Beijing, 100191, China
| | - Ping Xu
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Peking University Health Science Center, 38 Xueyuan Road, Beijing, 100191, China.
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16
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Zhang J, Wang S, Ba Y, Xu Z. Tetrazole hybrids with potential anticancer activity. Eur J Med Chem 2019; 178:341-351. [PMID: 31200236 DOI: 10.1016/j.ejmech.2019.05.071] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 05/25/2019] [Accepted: 05/25/2019] [Indexed: 12/15/2022]
Abstract
Cancer is one of the main causes of death throughout the world. The anticancer agents are indispensable for the treatment of various cancers, but most of them currently on the market are not specific, resulting in series of side effects of chemotherapy. Moreover, the emergency of drug-resistance towards cancers has already increased up to alarming level in the recent decades. Therefore, it's imperative to develop novel anticancer candidates with excellent activity against both drug-susceptible and drug-resistant cancers, and low toxicity as well. Tetrazole is the bioisoster of carboxylic acid, and its derivatives demonstrated promising anticancer activity. Hybridization of tetrazole with other anticancer pharmacophores may provide novel candidates with anticancer potency. The present review described the anticancer activity of tetrazole hybrids, and the structure-activity relationship (SAR) is also discussed to provide an insight for rational designs of tetrazole anticancer candidates with higher efficiency.
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Affiliation(s)
- Jingyu Zhang
- Pharmacy College, Henan University of Chinese Medicine, 450046, Zhengzhou, PR China.
| | - Su Wang
- Pharmacy College, Henan University of Chinese Medicine, 450046, Zhengzhou, PR China
| | - Yanyan Ba
- Pharmacy College, Henan University of Chinese Medicine, 450046, Zhengzhou, PR China
| | - Zhi Xu
- Huanghuai University, College of Chemistry and Pharmaceutical Engineering, Zhumadian, PR China.
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17
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Integrated Chemoinformatics Approaches Toward Epigenetic Drug Discovery. CHALLENGES AND ADVANCES IN COMPUTATIONAL CHEMISTRY AND PHYSICS 2019. [DOI: 10.1007/978-3-030-05282-9_8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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18
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Singh S, Samineni R, Pabbaraja S, Mehta G. Nitromethane as a Carbanion Source for Domino Benzoannulation with Ynones: One‐Pot Synthesis of Polyfunctional Naphthalenes and a Total Synthesis of Macarpine. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201810652] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Shweta Singh
- Department of Organic Synthesis and Process ChemistryCSIR-Indian Institute of Chemical Technology Tarnaka, Hyderabad- 500007 India
| | - Ramesh Samineni
- Department of Organic Synthesis and Process ChemistryCSIR-Indian Institute of Chemical Technology Tarnaka, Hyderabad- 500007 India
- Present address: Department of ChemistrySRMIST Kattankulathur, Chennai- 603203 India
| | - Srihari Pabbaraja
- Department of Organic Synthesis and Process ChemistryCSIR-Indian Institute of Chemical Technology Tarnaka, Hyderabad- 500007 India
| | - Goverdhan Mehta
- School of ChemistryUniversity of Hyderabad Hyderabad- 500046 India
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19
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Singh S, Samineni R, Pabbaraja S, Mehta G. Nitromethane as a Carbanion Source for Domino Benzoannulation with Ynones: One‐Pot Synthesis of Polyfunctional Naphthalenes and a Total Synthesis of Macarpine. Angew Chem Int Ed Engl 2018; 57:16847-16851. [DOI: 10.1002/anie.201810652] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2018] [Revised: 10/07/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Shweta Singh
- Department of Organic Synthesis and Process ChemistryCSIR-Indian Institute of Chemical Technology Tarnaka, Hyderabad- 500007 India
| | - Ramesh Samineni
- Department of Organic Synthesis and Process ChemistryCSIR-Indian Institute of Chemical Technology Tarnaka, Hyderabad- 500007 India
- Present address: Department of ChemistrySRMIST Kattankulathur, Chennai- 603203 India
| | - Srihari Pabbaraja
- Department of Organic Synthesis and Process ChemistryCSIR-Indian Institute of Chemical Technology Tarnaka, Hyderabad- 500007 India
| | - Goverdhan Mehta
- School of ChemistryUniversity of Hyderabad Hyderabad- 500046 India
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20
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Peng C, Zhang J, Xue J, Li S, Wang XN, Chang J. Lewis Acids Catalyzed Annulations of Ynamides with Acyl Chlorides for Constructing 4-Amino-2-naphthol Derivatives and 3-Aminocyclobutenones. J Org Chem 2018; 83:9256-9266. [PMID: 29978700 DOI: 10.1021/acs.joc.8b01255] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Two complementary synthetic manifestations leading to highly substituted 1-naphthol and 2-naphthol derivatives via Lewis acids catalyzed annulations of ynamides with acyl chlorides are described here. A one-pot synthesis of 4-amino-2-naphthol derivatives is accomplished via a ZnI2-catalyzed tandem Friedel-Crafts reaction sequence. While in the presence of Pd(0) catalyst, a [2 + 2] cycloaddition reaction of ynamides with monosubstituted ketenes that were generated from the dehydrohalogenation of suitable acyl chlorides leads to efficient formation of 3-aminocyclobutenones, which were subsequently modified to generate 3-amino-1-naphthols in excellent yields.
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Affiliation(s)
- Cheng Peng
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, and College of Chemistry and Molecular Engineering , Zhengzhou University , Zhengzhou 450001 , P. R. China
| | - Jingyi Zhang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, and College of Chemistry and Molecular Engineering , Zhengzhou University , Zhengzhou 450001 , P. R. China
| | - Jian Xue
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, and College of Chemistry and Molecular Engineering , Zhengzhou University , Zhengzhou 450001 , P. R. China
| | - Siqi Li
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, and College of Chemistry and Molecular Engineering , Zhengzhou University , Zhengzhou 450001 , P. R. China
| | - Xiao-Na Wang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, and College of Chemistry and Molecular Engineering , Zhengzhou University , Zhengzhou 450001 , P. R. China
| | - Junbiao Chang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, and College of Chemistry and Molecular Engineering , Zhengzhou University , Zhengzhou 450001 , P. R. China
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21
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Xiong M, Hu H, Hu X, Liu Y. Copper-Catalyzed Borylative Cyclization of o-(Cyano)phenyl Propargyl Carbonates: Synthesis of Functionalized 1-Naphthylamines. Org Lett 2018; 20:3661-3665. [DOI: 10.1021/acs.orglett.8b01457] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Meijun Xiong
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
| | - Hui Hu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
| | - Xiaoping Hu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
| | - Yuanhong Liu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
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22
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Meng N, Tang H, Zhang H, Jiang C, Su L, Min X, Zhang W, Zhang H, Miao Z, Zhang W, Zhuang C. Fragment-growing guided design of Keap1-Nrf2 protein-protein interaction inhibitors for targeting myocarditis. Free Radic Biol Med 2018; 117:228-237. [PMID: 29428410 DOI: 10.1016/j.freeradbiomed.2018.02.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 02/01/2018] [Accepted: 02/05/2018] [Indexed: 12/30/2022]
Abstract
Small-molecule inhibitors that block the Keap1-Nrf2 protein-protein interactions are being intensely pursued as a new therapeutic strategy for oxidative stress-related diseases, such as cancer, diabetes, Alzheimer's disease, arteriosclerosis, inflammation and myocarditis. However, there are not enough studies on antioxidant treatments using small molecules in myocarditis. We herein provided a series of novel hydronaphthoquinones as the Keap1-Nrf2 interaction inhibitors targeting LPS-induced myocarditis both in vitro and in vivo. These compounds were designed through an in-silico fragment growing approach based on our previous reported compound, S47 (1). The new compounds were predicted to form additional hydrogen bonds with the S363 residue, leading to higher inhibitory activity. Among these new derivatives, compounds S01 and S05 emerged as inhibitors with significant biochemical potency, as determined by fluorescent anisotropy assay and confirmed by surface plasmon resonance (SPR) and differential scanning fluorimetry (DSF) assays. These inhibitors can dose-dependently protect the H9c2 cardiac cells against LPS-induced injury (100% at 2 μM and 4 μM) and effectively prolong survival or save the life of LPS-injured mice. Mechanistic studies showed that these inhibitors could release Nrf2 in H9c2 cells and LPS-inflammatory mouse models and translocate into the nucleus in a dose-response manner, which significantly increased the downstream genes (HO-1, NQO-1) and the pro-inflammatory cytokines (TNF-α, IL-1β, IL-6), while ROS production dramatically decreased. Their protective effects and the mechanism of action were further confirmed by siNrf2 transfected experiment. Collectively, the novel hydronaphthoquinones can be used as promising lead compounds for the study of Keap1-Nrf2 protein-protein interactions and further anti-myocarditis drug development.
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Affiliation(s)
- Ning Meng
- School of Biological Science and Technology, University of Jinan, Jinan 250022, China
| | - Hua Tang
- Research Center for Marine Drugs, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China
| | - Hao Zhang
- Research Center for Marine Drugs, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China; School of Pharmacy, Ningxia Medical University, Yinchuan 750004, China
| | - Chengshi Jiang
- School of Biological Science and Technology, University of Jinan, Jinan 250022, China
| | - Li Su
- Research Center for Marine Drugs, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China
| | - Xiao Min
- Department of Medicinal Chemistry, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China
| | - Wannian Zhang
- Department of Medicinal Chemistry, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China; School of Pharmacy, Ningxia Medical University, Yinchuan 750004, China
| | - Hua Zhang
- School of Biological Science and Technology, University of Jinan, Jinan 250022, China.
| | - Zhenyuan Miao
- Department of Medicinal Chemistry, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China.
| | - Wen Zhang
- Research Center for Marine Drugs, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China.
| | - Chunlin Zhuang
- Research Center for Marine Drugs, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China; Department of Medicinal Chemistry, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China.
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23
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Liu H, Wu J, Ge Y, Li A, Li J, Liu Z, Xu Y, Xu Q, Li Y. Novel aromatic sulfonyl naphthalene-based boronates as 20S proteasome inhibitors. Bioorg Med Chem 2018; 26:1050-1061. [DOI: 10.1016/j.bmc.2018.01.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 01/22/2018] [Accepted: 01/23/2018] [Indexed: 02/09/2023]
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24
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Marastoni M, Trapella C, Scotti A, Fantinati A, Ferretti V, Marzola E, Eleonora G, Gavioli R, Preti D. Naphthoquinone amino acid derivatives, synthesis and biological activity as proteasome inhibitors. J Enzyme Inhib Med Chem 2017; 32:865-877. [PMID: 28657369 PMCID: PMC6445160 DOI: 10.1080/14756366.2017.1334649] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
The ubiquitin-proteasome system has been largely investigated for its key role in protein degradation mechanisms that regulate both apoptosis and cell division. Because of their antitumour activity, different classes of proteasome inhibitors have been identified to date. Some of these compounds are currently employed in the clinical treatment of several types of cancer among which multiple myeloma. Here, we describe the design, chemistry, biological activity and modelling studies of a large series of amino acid derivatives linked to a naphthoquinone pharmacophoric group through variable spacers. Some analogues showed interesting inhibitory potency for the β1 and β5 subunits of the proteasome with IC50 values in the sub-µm range.
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Affiliation(s)
- Mauro Marastoni
- a Department of Chemical and Pharmaceutical Sciences , University of Ferrara , Ferrara , Italy
| | - Claudio Trapella
- a Department of Chemical and Pharmaceutical Sciences , University of Ferrara , Ferrara , Italy
| | - Alessandra Scotti
- a Department of Chemical and Pharmaceutical Sciences , University of Ferrara , Ferrara , Italy
| | - Anna Fantinati
- a Department of Chemical and Pharmaceutical Sciences , University of Ferrara , Ferrara , Italy
| | - Valeria Ferretti
- a Department of Chemical and Pharmaceutical Sciences , University of Ferrara , Ferrara , Italy
| | - Erika Marzola
- a Department of Chemical and Pharmaceutical Sciences , University of Ferrara , Ferrara , Italy
| | - Gallerani Eleonora
- b Department of Life Sciences and Biotechnology , University of Ferrara , Ferrara , Italy
| | - Riccardo Gavioli
- b Department of Life Sciences and Biotechnology , University of Ferrara , Ferrara , Italy
| | - Delia Preti
- a Department of Chemical and Pharmaceutical Sciences , University of Ferrara , Ferrara , Italy
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25
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Jorda R, Dušek J, Řezníčková E, Pauk K, Magar PP, Imramovský A, Kryštof V. Synthesis and antiproteasomal activity of novel O -benzyl salicylamide-based inhibitors built from leucine and phenylalanine. Eur J Med Chem 2017; 135:142-158. [DOI: 10.1016/j.ejmech.2017.04.027] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 04/07/2017] [Accepted: 04/09/2017] [Indexed: 10/19/2022]
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26
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Xiong M, Xie X, Liu Y. Copper-Catalyzed Borylative Cyclization of in Situ Generated o-Allenylaryl Nitriles with Bis(pinacolato)diboron. Org Lett 2017; 19:3398-3401. [PMID: 28653539 DOI: 10.1021/acs.orglett.7b01355] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A Cu-catalyzed cascade borylcupration/cyclization of in situ generated allene-nitriles with B2pin2 has been developed, which provides highly substituted 3-boryl-1-naphthylamines with excellent regioselectivity and wide functional group compatibility. It has been shown that, for the first time, the catalytically generated allylcopper species can be captured by a cyano group from a normal nitrile to furnish a carbocycle.
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Affiliation(s)
- Meijun Xiong
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Lingling Lu, Shanghai 200032, People's Republic of China
| | - Xin Xie
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Lingling Lu, Shanghai 200032, People's Republic of China
| | - Yuanhong Liu
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Lingling Lu, Shanghai 200032, People's Republic of China
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27
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Ge Y, Li A, Wu J, Feng H, Wang L, Liu H, Xu Y, Xu Q, Zhao L, Li Y. Design, synthesis and biological evaluation of novel non-peptide boronic acid derivatives as proteasome inhibitors. Eur J Med Chem 2017; 128:180-191. [PMID: 28182990 DOI: 10.1016/j.ejmech.2017.01.034] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 12/03/2016] [Accepted: 01/21/2017] [Indexed: 10/20/2022]
Abstract
A novel series of non-peptide proteasome inhibitors bearing the 1, 4-naphthoquinone scaffold and boronic acid warhead was developed. In the biological evaluation on the chymotrypsin-like activity of human 20S proteasome, five compounds showed IC50 values in the nanomolar range. Docking experiments into the yeast 20S proteasome rationalized their biological activities and allowed further optimization of this interesting class of inhibitors. Within the cellular proliferation inhibition assay and western blot analysis, compound 3e demonstrated excellent anti-proliferative activity against solid tumor cells and clear accumulation of ubiquitinated cellular proteins. Furthermore, in the microsomal stability assay compound 3e demonstrated much improved metabolic stability compared to bortezomib, emerging as a promising lead compound for further design of non-peptide proteasome inhibitors.
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Affiliation(s)
- Ying Ge
- Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, China
| | - Aibo Li
- Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, China
| | - Jianwei Wu
- Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, China
| | - Haiwei Feng
- Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, China
| | - Letian Wang
- Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, China
| | - Hongwu Liu
- Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, China
| | - Yungen Xu
- Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China; Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, China
| | - Qingxiang Xu
- Department of Hepatobiliary Surgery, Nanjing Drum Tower Hospital, Nanjing 210008, China.
| | - Li Zhao
- Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China.
| | - Yuyan Li
- Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China; Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, China.
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28
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29
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McDaniel TJ, Lansdell TA, Dissanayake AA, Azevedo LM, Claes J, Odom AL, Tepe JJ. Substituted quinolines as noncovalent proteasome inhibitors. Bioorg Med Chem 2016; 24:2441-2450. [PMID: 27112450 PMCID: PMC5724766 DOI: 10.1016/j.bmc.2016.04.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 03/23/2016] [Accepted: 04/01/2016] [Indexed: 01/26/2023]
Abstract
Screening of a library of diverse heterocyclic scaffolds identified substituted quinolines as inhibitors of the human proteasome. The heterocyclic library was prepared via a novel titanium-catalyzed multicomponent coupling reaction, which rendered a diverse set of isoxazoles, pyrimidines, pyrroles, pyrazoles and quinolines. SAR of the parent lead compound indicated that hydrophobic residues on the benzo-moiety significantly improved potency. Lead compound 25 inhibits the chymotryptic-like proteolytic activity of the proteasome (IC50 5.4μM), representing a new class of nonpeptidic, noncovalent proteasome inhibitors.
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Affiliation(s)
- Tanner J McDaniel
- Department of Chemistry, Michigan State University, East Lansing, MI 48824, United States
| | - Theresa A Lansdell
- Department of Chemistry, Michigan State University, East Lansing, MI 48824, United States
| | - Amila A Dissanayake
- Department of Chemistry, Michigan State University, East Lansing, MI 48824, United States
| | - Lauren M Azevedo
- Department of Chemistry, Michigan State University, East Lansing, MI 48824, United States
| | - Jacob Claes
- Department of Chemistry, Michigan State University, East Lansing, MI 48824, United States
| | - Aaron L Odom
- Department of Chemistry, Michigan State University, East Lansing, MI 48824, United States.
| | - Jetze J Tepe
- Department of Chemistry, Michigan State University, East Lansing, MI 48824, United States.
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30
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Lee S, Wales TE, Escudero S, Cohen DT, Luccarelli J, Gallagher CG, Cohen NA, Huhn AJ, Bird GH, Engen JR, Walensky LD. Allosteric inhibition of antiapoptotic MCL-1. Nat Struct Mol Biol 2016; 23:600-7. [PMID: 27159560 PMCID: PMC4900187 DOI: 10.1038/nsmb.3223] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Accepted: 04/06/2016] [Indexed: 11/09/2022]
Abstract
MCL-1 is an antiapoptotic BCL-2 family protein that has emerged as a major pathogenic factor in human cancer. Like BCL-2, MCL-1 bears a surface groove whose function is to sequester the BH3 killer domains of proapoptotic BCL-2 family members, a mechanism harnessed by cancer cells to establish formidable apoptotic blockades. Although drugging the BH3-binding groove has been achieved for BCL-2, translating this approach to MCL-1 has been challenging. Here, we report an alternative mechanism for MCL-1 inhibition by small-molecule covalent modification of C286 at a new interaction site distant from the BH3-binding groove. Our structure-function analyses revealed that the BH3 binding capacity of MCL-1 and its suppression of BAX are impaired by molecular engagement, a phenomenon recapitulated by C286W mutagenic mimicry in vitro and in mouse cells. Thus, we characterize an allosteric mechanism for disrupting the antiapoptotic BH3 binding activity of MCL-1, informing a new strategy for disarming MCL-1 in cancer.
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Affiliation(s)
- Susan Lee
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA.,Linde Program in Cancer Chemical Biology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Thomas E Wales
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, Massachusetts, USA
| | - Silvia Escudero
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA.,Linde Program in Cancer Chemical Biology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Daniel T Cohen
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA.,Linde Program in Cancer Chemical Biology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - James Luccarelli
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA.,Linde Program in Cancer Chemical Biology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Catherine G Gallagher
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA.,Linde Program in Cancer Chemical Biology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Nicole A Cohen
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA.,Linde Program in Cancer Chemical Biology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Annissa J Huhn
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA.,Linde Program in Cancer Chemical Biology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Gregory H Bird
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA.,Linde Program in Cancer Chemical Biology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - John R Engen
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, Massachusetts, USA
| | - Loren D Walensky
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA.,Linde Program in Cancer Chemical Biology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA.,Division of Hematology/Oncology, Boston Children's Hospital, Boston, Massachusetts, USA
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31
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Yang L, Wang W, Sun Q, Xu F, Niu Y, Wang C, Liang L, Xu P. Development of novel proteasome inhibitors based on phthalazinone scaffold. Bioorg Med Chem Lett 2016; 26:2801-2805. [PMID: 27158142 DOI: 10.1016/j.bmcl.2016.04.067] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 04/11/2016] [Accepted: 04/23/2016] [Indexed: 11/18/2022]
Abstract
In this study we designed a series of proteasome inhibitors using pyridazinone as initial scaffold, and extended the structure with rational design by computer aided drug design (CADD). Two different synthetic routes were explored and the biological evaluation of the phthalazinone derivatives was investigated. Most importantly, electron positive triphenylphosphine group was first introduced in the structure of proteasome inhibitors and potent inhibition was achieved. As 6c was the most potent inhibitor of proteasome, we examined the structure-activity relationship (SAR) of 6c analogs.
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Affiliation(s)
- Lingfei Yang
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China
| | - Wei Wang
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China
| | - Qi Sun
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China
| | - Fengrong Xu
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China
| | - Yan Niu
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China
| | - Chao Wang
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China
| | - Lei Liang
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China.
| | - Ping Xu
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China
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Grigoreva TA, Tribulovich VG, Garabadzhiu AV, Melino G, Barlev NA. The 26S proteasome is a multifaceted target for anti-cancer therapies. Oncotarget 2015; 6:24733-49. [PMID: 26295307 PMCID: PMC4694792 DOI: 10.18632/oncotarget.4619] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2015] [Accepted: 07/10/2015] [Indexed: 12/30/2022] Open
Abstract
Proteasomes play a critical role in the fate of proteins that are involved in major cellular processes, including signal transduction, gene expression, cell cycle, replication, differentiation, immune response, cellular response to stress, etc. In contrast to non-specific degradation by lysosomes, proteasomes are highly selective and destroy only the proteins that are covalently labelled with small proteins, called ubiquitins. Importantly, many diseases, including neurodegenerative diseases and cancers, are intimately connected to the activity of proteasomes making them an important pharmacological target. Currently, the vast majority of inhibitors are aimed at blunting the proteolytic activities of proteasomes. However, recent achievements in solving structures of proteasomes at very high resolution provided opportunities to design new classes of small molecules that target other physiologically-important enzymatic activities of proteasomes, including the de-ubiquitinating one. This review attempts to catalog the information available to date about novel classes of proteasome inhibitors that may have important pharmacological ramifications.
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Affiliation(s)
- Tatyana A Grigoreva
- St. Petersburg State Technological Institute (Technical University), St. Petersburng, Russia
| | | | | | - Gerry Melino
- St. Petersburg State Technological Institute (Technical University), St. Petersburng, Russia
- University of Rome Tor Vergata, Roma, Italy
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Scotti A, Trapella C, Ferretti V, Gallerani E, Gavioli R, Marastoni M. Studies of C-terminal naphthoquinone dipeptides as 20S proteasome inhibitors. J Enzyme Inhib Med Chem 2015; 31:456-63. [PMID: 25942361 DOI: 10.3109/14756366.2015.1037749] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The ubiquitin proteasome pathway is crucial in regulating many processes in the cell. Modulation of proteasome activities has emerged as a powerful strategy for potential therapies against much important pathologies. In particular, specific inhibitors may represent a useful tool for the treatment of tumors. Here, we report studies of a new series of peptide-based analogues bearing a naphthoquinone pharmacophoric unit at the C-terminal position. Some derivatives showed inhibition in the µM range of the post-acidic-like and chymotrypsin-like active sites of the proteasome.
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Affiliation(s)
| | | | | | - Eleonora Gallerani
- b Department of Life Sciences and Biotechnology , University of Ferrara , Ferrara , Italy
| | - Riccardo Gavioli
- b Department of Life Sciences and Biotechnology , University of Ferrara , Ferrara , Italy
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Dahlin JL, Inglese J, Walters MA. Mitigating risk in academic preclinical drug discovery. Nat Rev Drug Discov 2015; 14:279-94. [PMID: 25829283 PMCID: PMC6002840 DOI: 10.1038/nrd4578] [Citation(s) in RCA: 102] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The number of academic drug discovery centres has grown considerably in recent years, providing new opportunities to couple the curiosity-driven research culture in academia with rigorous preclinical drug discovery practices used in industry. To fully realize the potential of these opportunities, it is important that academic researchers understand the risks inherent in preclinical drug discovery, and that translational research programmes are effectively organized and supported at an institutional level. In this article, we discuss strategies to mitigate risks in several key aspects of preclinical drug discovery at academic drug discovery centres, including organization, target selection, assay design, medicinal chemistry and preclinical pharmacology.
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Affiliation(s)
- Jayme L Dahlin
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic College of Medicine, Rochester, Minnesota 55905, USA
| | - James Inglese
- 1] National Center for Advancing Translational Sciences (NCATS), National Institutes of Health (NIH), Rockville, Maryland 20850, USA. [2] National Human Genome Research Institute, Bethesda, Maryland, 20892, USA
| | - Michael A Walters
- Institute for Therapeutics Discovery and Development, University of Minnesota Twin Cities, 717 Delaware St SE, Room 609, Minneapolis, Minnesota 55414, USA
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Noreen M, Rasool N, El Khatib M, Molander GA. Arylation and heteroarylation of thienylsulfonamides with organotrifluoroborates. J Org Chem 2014; 79:7243-9. [PMID: 25019222 PMCID: PMC4120984 DOI: 10.1021/jo501323z] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
![]()
A mild, practical protocol has been
developed for the Suzuki cross-coupling
of unprotected thienylsulfonamides from air- and bench-stable organotrifluoroborates
in the absence of a protecting group on the sulfonamide nitrogen.
The developed synthetic method can be applied to the preparation of
various arylated and heteroarylated thienylsulfonamides under conditions
that are tolerant of a broad range of functional groups.
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Affiliation(s)
- Mnaza Noreen
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania , 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
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Dahlin JL, Walters MA. The essential roles of chemistry in high-throughput screening triage. Future Med Chem 2014; 6:1265-90. [PMID: 25163000 PMCID: PMC4465542 DOI: 10.4155/fmc.14.60] [Citation(s) in RCA: 95] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
It is increasingly clear that academic high-throughput screening (HTS) and virtual HTS triage suffers from a lack of scientists trained in the art and science of early drug discovery chemistry. Many recent publications report the discovery of compounds by screening that are most likely artifacts or promiscuous bioactive compounds, and these results are not placed into the context of previous studies. For HTS to be most successful, it is our contention that there must exist an early partnership between biologists and medicinal chemists. Their combined skill sets are necessary to design robust assays and efficient workflows that will weed out assay artifacts, false positives, promiscuous bioactive compounds and intractable screening hits, efforts that ultimately give projects a better chance at identifying truly useful chemical matter. Expertise in medicinal chemistry, cheminformatics and purification sciences (analytical chemistry) can enhance the post-HTS triage process by quickly removing these problematic chemotypes from consideration, while simultaneously prioritizing the more promising chemical matter for follow-up testing. It is only when biologists and chemists collaborate effectively that HTS can manifest its full promise.
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Affiliation(s)
- Jayme L Dahlin
- Department of Molecular Pharmacology & Experimental Therapeutics, Mayo Clinic College of Medicine, Rochester, MN 55905, USA
- Medical Scientist Training Program, Mayo Clinic College of Medicine, Rochester, MN 55905, USA
| | - Michael A Walters
- Institute for Therapeutics Discovery & Development, University of Minnesota, Minneapolis, MN 55414, USA
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Abulwerdi FA, Liao C, Mady AS, Gavin J, Shen C, Cierpicki T, Stuckey JA, Showalter HDH, Nikolovska-Coleska Z. 3-Substituted-N-(4-hydroxynaphthalen-1-yl)arylsulfonamides as a novel class of selective Mcl-1 inhibitors: structure-based design, synthesis, SAR, and biological evaluation. J Med Chem 2014; 57:4111-33. [PMID: 24749893 PMCID: PMC4033665 DOI: 10.1021/jm500010b] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Mcl-1, an antiapoptotic member of the Bcl-2 family of proteins, is a validated and attractive target for cancer therapy. Overexpression of Mcl-1 in many cancers results in disease progression and resistance to current chemotherapeutics. Utilizing high-throughput screening, compound 1 was identified as a selective Mcl-1 inhibitor and its binding to the BH3 binding groove of Mcl-1 was confirmed by several different, but complementary, biochemical and biophysical assays. Guided by structure-based drug design and supported by NMR experiments, comprehensive SAR studies were undertaken and a potent and selective inhibitor, compound 21, was designed which binds to Mcl-1 with a Ki of 180 nM. Biological characterization of 21 showed that it disrupts the interaction of endogenous Mcl-1 and biotinylated Noxa-BH3 peptide, causes cell death through a Bak/Bax-dependent mechanism, and selectively sensitizes Eμ-myc lymphomas overexpressing Mcl-1, but not Eμ-myc lymphoma cells overexpressing Bcl-2. Treatment of human leukemic cell lines with compound 21 resulted in cell death through activation of caspase-3 and induction of apoptosis.
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Affiliation(s)
- Fardokht A Abulwerdi
- Department of Pathology, University of Michigan Medical School , Ann Arbor, Michigan 48109, United States
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Fortes MP, Bassaco MM, Kaufman TS, Silveira CC. A convenient eco-friendly system for the synthesis of 5-sulfenyl tetrazole derivatives of indoles and pyrroles employing CeCl3·7H2O in PEG-400. RSC Adv 2014. [DOI: 10.1039/c4ra05625f] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
The use of CeCl3·7H2O in PEG-400 for the convenient synthesis of 5-sulfenyl tetrazoles derived from indoles and pyrroles, is reported. The scope and limitations of the transformation were also studied.
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Affiliation(s)
- Margiani P. Fortes
- Departamento de Química
- Universidade Federal de Santa Maria 97105-900
- Santa Maria, Brazil
| | - Mariana M. Bassaco
- Departamento de Química
- Universidade Federal de Santa Maria 97105-900
- Santa Maria, Brazil
| | | | - Claudio C. Silveira
- Departamento de Química
- Universidade Federal de Santa Maria 97105-900
- Santa Maria, Brazil
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39
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Synthesis and biological evaluation of N-(4-hydroxy-3-mercaptonaphthalen-1-yl)amides as inhibitors of angiogenesis and tumor growth. Eur J Med Chem 2013; 64:377-88. [PMID: 23644219 DOI: 10.1016/j.ejmech.2013.03.043] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Revised: 03/18/2013] [Accepted: 03/24/2013] [Indexed: 12/20/2022]
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Ozcan S, Kazi A, Marsilio F, Fang B, Guida WC, Koomen J, Lawrence HR, Sebti SM. Oxadiazole-isopropylamides as potent and noncovalent proteasome inhibitors. J Med Chem 2013; 56:3783-805. [PMID: 23547706 DOI: 10.1021/jm400221d] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Screening of the 50000 ChemBridge compound library led to the identification of the oxadiazole-isopropylamide 1 (PI-1833) which inhibited chymotrypsin-like (CT-L) activity (IC50 = 0.60 μM) with little effects on the other two major proteasome proteolytic activities, trypsin-like (T-L) and postglutamyl-peptide-hydrolysis-like (PGPH-L). LC-MS/MS and dialysis show that 1 is a noncovalent and rapidly reversible CT-L inhibitor. Focused library synthesis provided 11ad (PI-1840) with CT-L activity (IC50 = 27 nM). Detailed SAR studies indicate that the amide moiety and the two phenyl rings are sensitive toward modifications. Hydrophobic residues, such as propyl or butyl in the para position (not ortho or meta) of the A-ring and a m-pyridyl group as B-ring, significantly improve activity. Compound 11ad (IC50 = 0.37 μM) is more potent than 1 (IC50 = 3.5 μM) at inhibiting CT-L activity in intact MDA-MB-468 human breast cancer cells and inhibiting their survival. The activity of 11ad warrants further preclinical investigation of this class as noncovalent proteasome inhibitors.
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Affiliation(s)
- Sevil Ozcan
- Drug Discovery Department, Moffitt Cancer Center , 12902 Magnolia Drive, Tampa, Florida 33612, USA
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41
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Pevzner Y, Metcalf R, Kantor M, Sagaro D, Daniel K. Recent advances in proteasome inhibitor discovery. Expert Opin Drug Discov 2013; 8:537-68. [DOI: 10.1517/17460441.2013.780020] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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McCallum MM, Nandhikonda P, Temmer JJ, Eyermann C, Simeonov A, Jadhav A, Yasgar A, Maloney D, Arnold AL. High-throughput identification of promiscuous inhibitors from screening libraries with the use of a thiol-containing fluorescent probe. ACTA ACUST UNITED AC 2013; 18:705-13. [PMID: 23446699 DOI: 10.1177/1087057113476090] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Testing small molecules for their ability to modify cysteine residues of proteins in the early stages of drug discovery is expected to accelerate our ability to develop more selective drugs with lesser side effects. In addition, this approach also enables the rapid evaluation of the mode of binding of new drug candidates with respect to thiol reactivity and metabolism by glutathione. Herein, we describe the development of a fluorescence-based high-throughput assay that allows the identification of thiol-reactive compounds. A thiol-containing fluorescent probe, MSTI, was synthesized and used to evaluate small molecules from the Library of Pharmacologically Active Compounds (LOPAC) collection of bioactive molecules. LOPAC compounds that are known to react with sulfur nucleophiles were identified with this assay, for example, irreversible protease inhibitors, nitric oxide-releasing compounds, and proton-pump inhibitors. The results confirm that both electrophilic and redox reactive compounds can be quickly identified in a high-throughput manner, enabling the assessment of screening libraries with respect to thiol-reactive compounds.
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