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Xie F, Han F, Su Q, Peng Y, Jing L, Han P. Electroreductive Arylcarboxylation of Styrenes with CO 2 and Aryl Halides via a Radical-Polar Crossover Mechanism. Org Lett 2024; 26:4427-4432. [PMID: 38757832 DOI: 10.1021/acs.orglett.4c00920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
2,3-Diaryl propanoic acids are important structures as a result of their widespread presence in numerous bioactive compounds. However, the limitations of existing synthetic techniques include the requirement for costly catalysts and limited substrates. Here, we developed a novel electroreductive arylcarboxylation of alkenes with CO2 based on a radical-polar crossover pathway assisted by easily accessible dimethyl terephthalate as a reductive mediator. This method will provide an efficient strategy for the synthesis of 2,3-diarylpropanoic acids.
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Affiliation(s)
- Fenfen Xie
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, Sichuan 637002, People's Republic of China
| | - Fen Han
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, Sichuan 637002, People's Republic of China
| | - Qian Su
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, Sichuan 637002, People's Republic of China
| | - Yulin Peng
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, Sichuan 637002, People's Republic of China
| | - Linhai Jing
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, Sichuan 637002, People's Republic of China
| | - Pan Han
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, Sichuan 637002, People's Republic of China
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2
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Aksenov DA, Smith JL, Aksenov AV, Prityko LA, Aksenov NA, Kuzminov IK, Aleksandrova EV, Sathish P, Mesa-Diaz N, Vernaza A, Zhang A, Du L, Kornienko A. 2-(3-Indolyl)acetamides and their oxazoline analogues: Anticancer SAR study. Bioorg Med Chem Lett 2024; 102:129681. [PMID: 38432288 DOI: 10.1016/j.bmcl.2024.129681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 02/21/2024] [Accepted: 02/28/2024] [Indexed: 03/05/2024]
Abstract
We previously studied 2-aryl-2-(3-indolyl)acetohydroxamates as potential agents against melanoma. These compounds were ineffective in a mouse melanoma xenograft model, most likely due to unfavorable metabolic properties, specifically due to glucuronidation of the N-hydroxyl of the hydoxamic moiety. In the present work, we prepared a series of analogues, 2-aryl-2-(3-indolyl)acetamides and their oxazoline derivatives, which do not contain the N-hydroxyl group. We investigated the structure-activity relationship in both series of compounds and found that the 2-naphthyl is a preferred group at C-2 of the indole in the amide series, whereas the tetralin moiety is favorable in the same location in the oxazoline series. Overall, three compounds in the amide series have GI50 values as low as 0.2-0.3 µM and the results clearly indicate that the N-hydroxyl group is not necessary for high potency in vitro.
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Affiliation(s)
- Dmitrii A Aksenov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin Street, Stavropol 355009, Russian Federation
| | - Jadyn L Smith
- Department of Chemistry and Biochemistry, Texas State University, San Marcos, TX 78666, USA
| | - Alexander V Aksenov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin Street, Stavropol 355009, Russian Federation
| | - Lidiya A Prityko
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin Street, Stavropol 355009, Russian Federation
| | - Nicolai A Aksenov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin Street, Stavropol 355009, Russian Federation
| | - Iliya K Kuzminov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin Street, Stavropol 355009, Russian Federation
| | - Elena V Aleksandrova
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin Street, Stavropol 355009, Russian Federation
| | - Puppala Sathish
- Department of Chemistry and Biochemistry, Texas State University, San Marcos, TX 78666, USA
| | - Nakya Mesa-Diaz
- Department of Chemistry and Biochemistry, Texas State University, San Marcos, TX 78666, USA
| | - Alexandra Vernaza
- Department of Chemistry and Biochemistry, Texas State University, San Marcos, TX 78666, USA
| | - Angela Zhang
- Department of Chemistry and Biochemistry, Texas State University, San Marcos, TX 78666, USA
| | - Liqin Du
- Department of Chemistry and Biochemistry, Texas State University, San Marcos, TX 78666, USA
| | - Alexander Kornienko
- Department of Chemistry and Biochemistry, Texas State University, San Marcos, TX 78666, USA.
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3
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Sharma D, Pareek A, Arya H, Soni R, Rai P, Agrawal A, Nimesh S, Kumar D, Yaragorla S, Bhatt TK. Synthesis and inhibition studies towards the discovery of benzodiazepines as potential antimalarial compounds. Exp Parasitol 2022; 243:108411. [DOI: 10.1016/j.exppara.2022.108411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 10/04/2022] [Accepted: 10/18/2022] [Indexed: 11/25/2022]
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4
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Malla RR, Kiran P. Tumor microenvironment pathways: Cross regulation in breast cancer metastasis. Genes Dis 2020; 9:310-324. [PMID: 35224148 PMCID: PMC8843880 DOI: 10.1016/j.gendis.2020.11.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 10/16/2020] [Accepted: 11/24/2020] [Indexed: 12/19/2022] Open
Abstract
The tumor microenvironment (TME) is heterogeneous and contains a multiple cell population with surrounded immune cells, which plays a major role in regulating metastasis. The multifunctional pathways, Hedgehog (Hh), Wnt, Notch, and NF-kB, cross-regulates metastasis in breast cancer. This review presents substantial evidence for cross-regulation of TME components and signaling pathways, which makes breast TME more heterogeneous and complex, promoting breast cancer progression and metastasis as a highly aggressive form. We discoursed the importance of stromal and immune cells as well as their crosstalk in bridging the metastasis. We also discussed the role of Hh and Notch pathways in the intervention between breast cancer cells and macrophages to support TME; Notch signaling in the bidirectional communication between cancer cells and components of TME; Wnt signal pathway in controlling the factors responsible for EMT and NF-κB pathway in the regulation of genes controlling the inflammatory response. We also present the role of exosomes and their miRNAs in the cross-regulation of TME cells as well as pathways in the reprogramming of breast TME to support metastasis. Finally, we examined and discussed the targeted small molecule inhibitors and natural compounds targeting developmental pathways and proposed small molecule natural compounds as potential therapeutics of TME based on the multitargeting ability. In conclusion, the understanding of the molecular basis of the cross-regulation of TME pathways and their inhibitors helps identify molecular targets for rational drug discovery to treat breast cancers.
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Tseng LY, Huang ST, Peng LN, Chen LK, Hsiao FY. Benzodiazepines, z-Hypnotics, and Risk of Dementia: Special Considerations of Half-Lives and Concomitant Use. Neurotherapeutics 2020; 17:156-164. [PMID: 31802436 PMCID: PMC7007460 DOI: 10.1007/s13311-019-00801-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
The utilization of benzodiazepines (BZDs) and z-hypnotics has substantially increased with the aging of the population, but the risk of BZDs and z-hypnotics in the development of dementia remains a strong concern. This cohort study aimed to evaluate the risk of BZDs and z-hypnotics for subsequent dementia development with a special consideration of their half-lives and the concomitant use of these medications. People aged 65 years and older who were newly prescribed oral BZDs or z-hypnotics between 2003 and 2012 were identified from Taiwan's National Health Insurance Research Database. All BZDs were categorized as long-acting drugs (≥ 20 h) or short-acting drugs (< 20 h) for further comparisons, and data were collected on a quarterly basis, starting on the first date of drug prescription and ending on the date of death, occurrence of dementia, or end of the follow-up period (December 31, 2012), whichever came first. All dementia events except vascular dementia occurring during the follow-up period were identified. Among 260,502 eligible subjects, short-acting BZDs and z-hypnotics users were at greater risk of dementia than long-acting users [adjusted odds ratio (95% confidence interval) in short-acting BZD users, 1.98 (1.89-2.07); z-hypnotic users, 1.79 (1.68-1.91); and long-acting BZD users, 1.47 (1.37-1.58)]. In addition, subjects concomitantly using 2 or more BZDs or z-hypnotics had a higher risk of dementia than those who used 1 of these drugs (4.79 (3.95-5.81)). The use of BZDs and z-hypnotics was strongly associated with the risk of dementia development, especially the short-acting BZDs, z-hypnotics, and concomitant use of multiple agents. These findings deserve further interventional studies for clarification.
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Affiliation(s)
- Li-Yen Tseng
- Department of Geriatrics, School of Medicine, National Yang-Ming University, Taipei, Taiwan
- Aging and Health Research Center, National Yang-Ming University, Taipei, Taiwan
- Center for Geriatrics and Gerontology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Shih-Tsung Huang
- Graduate Institute of Clinical Pharmacy, College of Medicine, National Taiwan University, 33, Linsen S. Rd, Taipei, 10050, Taiwan
| | - Li-Ning Peng
- Department of Geriatrics, School of Medicine, National Yang-Ming University, Taipei, Taiwan
- Aging and Health Research Center, National Yang-Ming University, Taipei, Taiwan
- Center for Geriatrics and Gerontology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Liang-Kung Chen
- Department of Geriatrics, School of Medicine, National Yang-Ming University, Taipei, Taiwan
- Aging and Health Research Center, National Yang-Ming University, Taipei, Taiwan
- Center for Geriatrics and Gerontology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Fei-Yuan Hsiao
- Graduate Institute of Clinical Pharmacy, College of Medicine, National Taiwan University, 33, Linsen S. Rd, Taipei, 10050, Taiwan.
- School of Pharmacy, College of Medicine, National Taiwan University, Taipei, Taiwan.
- Department of Pharmacy, National Taiwan University Hospital, Taipei, Taiwan.
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6
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Iridium-Catalyzed Asymmetric Hydrogenation. TOP ORGANOMETAL CHEM 2020. [DOI: 10.1007/3418_2020_64] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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7
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Calvo-Flores Guzmán B, Vinnakota C, Govindpani K, Waldvogel HJ, Faull RL, Kwakowsky A. The GABAergic system as a therapeutic target for Alzheimer's disease. J Neurochem 2018; 146:649-669. [DOI: 10.1111/jnc.14345] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 02/21/2018] [Accepted: 03/14/2018] [Indexed: 12/14/2022]
Affiliation(s)
- Beatriz Calvo-Flores Guzmán
- Centre for Brain Research; Faculty of Medical and Health Sciences; Department of Anatomy and Medical Imaging; University of Auckland; Auckland New Zealand
| | - Chitra Vinnakota
- Centre for Brain Research; Faculty of Medical and Health Sciences; Department of Anatomy and Medical Imaging; University of Auckland; Auckland New Zealand
| | - Karan Govindpani
- Centre for Brain Research; Faculty of Medical and Health Sciences; Department of Anatomy and Medical Imaging; University of Auckland; Auckland New Zealand
| | - Henry J. Waldvogel
- Centre for Brain Research; Faculty of Medical and Health Sciences; Department of Anatomy and Medical Imaging; University of Auckland; Auckland New Zealand
| | - Richard L.M. Faull
- Centre for Brain Research; Faculty of Medical and Health Sciences; Department of Anatomy and Medical Imaging; University of Auckland; Auckland New Zealand
| | - Andrea Kwakowsky
- Centre for Brain Research; Faculty of Medical and Health Sciences; Department of Anatomy and Medical Imaging; University of Auckland; Auckland New Zealand
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8
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Li P, Hu X, Dong XQ, Zhang X. Rhodium/bisphosphine-thiourea-catalyzed enantioselective hydrogenation of α,β-unsaturated N-acylpyrazoles. Chem Commun (Camb) 2018; 52:11677-11680. [PMID: 27709153 DOI: 10.1039/c6cc04987g] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We successfully extended our Rh/bisphosphine-thiourea (ZhaoPhos) catalytic system to asymmetric hydrogenation of α,β-unsaturated N-acylpyrazoles affording products with high yields and excellent enantioselectivities (up to 97% yield, 99% ee). The pyrazole moiety played an important role in providing H-bond acceptor sites, which is critical for achieving high reactivities and enantioselectivities.
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Affiliation(s)
- Pan Li
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China. and College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, P. R. China.
| | - Xinquan Hu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, P. R. China.
| | - Xiu-Qin Dong
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China.
| | - Xumu Zhang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China. and Department of Chemistry, South University of Science and Technology of China, Shenzhen, 518000, P. R. China
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9
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Gomm W, von Holt K, Thomé F, Broich K, Maier W, Weckbecker K, Fink A, Doblhammer G, Haenisch B. Regular Benzodiazepine and Z-Substance Use and Risk of Dementia: An Analysis of German Claims Data. J Alzheimers Dis 2018; 54:801-8. [PMID: 27567804 DOI: 10.3233/jad-151006] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
BACKGROUND While acute detrimental effects of benzodiazepine (BDZ), and BDZ and related z-substance (BDZR) use on cognition and memory are known, the association of BDZR use and risk of dementia in the elderly is controversially discussed. Previous studies on cohort or claims data mostly show an increased risk for dementia with the use of BDZs or BDZRs. For Germany, analyses on large population-based data sets are missing. OBJECTIVE To evaluate the association between regular BDZR use and incident any dementia in a large German claims data set. METHODS Using longitudinal German public health insurance data from 2004 to 2011 we analyzed the association between regular BDZR use (versus no BDZR use) and incident dementia in a case-control design. We examined patient samples aged≥60 years that were free of dementia at baseline. To address potential protopathic bias we introduced a lag time between BDZR prescription and dementia diagnosis. Odds ratios were calculated applying conditional logistic regression, adjusted for potential confounding factors such as comorbidities and polypharmacy. RESULTS The regular use of BDZRs was associated with a significant increased risk of incident dementia for patients aged≥60 years (adjusted odds ratio [OR] 1.21, 95% confidence interval [CI] 1.13-1.29). The association was slightly stronger for long-acting substances than for short-acting ones. A trend for increased risk for dementia with higher exposure was observed. CONCLUSION The restricted use of BDZRs may contribute to dementia prevention in the elderly.
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Affiliation(s)
- Willy Gomm
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - Klaus von Holt
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - Friederike Thomé
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - Karl Broich
- Federal Institute for Drugs and Medical Devices (BfArM), Bonn, Germany
| | - Wolfgang Maier
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany.,Department of Psychiatry, University of Bonn, Bonn, Germany
| | - Klaus Weckbecker
- Department of General Practice and Family Medicine, University of Bonn, Bonn, Germany
| | - Anne Fink
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany.,Rostock Center for the Study of Demographic Change, Rostock, Germany
| | - Gabriele Doblhammer
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany.,Rostock Center for the Study of Demographic Change, Rostock, Germany.,Max-Planck-Institute for Demographic Research, Rostock, Germany.,Institute for Sociology and Demography, University of Rostock, Rostock, Germany
| | - Britta Haenisch
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
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10
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Dai J, Ren W, Li J, Shi Y. An effective approach to aryl-substituted propanoic acids via the Pd-catalyzed hydrocarboxylation of stilbenes. Org Chem Front 2018. [DOI: 10.1039/c7qo00726d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An effective Pd(0)-catalyzed hydrocarboxylation of substituted stilbenes with formic acid and HCOOPh is described. A variety of aryl-substituted propanoic acids are obtained in good yields without using external toxic CO gas.
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Affiliation(s)
- Jie Dai
- State Key Laboratory of Coordination Chemistry
- Center for Multimolecular Organic Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| | - Wenlong Ren
- State Key Laboratory of Coordination Chemistry
- Center for Multimolecular Organic Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| | - Jingfu Li
- State Key Laboratory of Coordination Chemistry
- Center for Multimolecular Organic Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| | - Yian Shi
- State Key Laboratory of Coordination Chemistry
- Center for Multimolecular Organic Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
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11
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Mtiraoui H, Nsira A, Msaddek M, Renard PY, Sabot C. Regioselective synthesis of o -triazolyl-1,5-benzodiazepin-2-ones and o -isoxazolyl-1,5-benzodiazepin-2-ones via copper-catalyzed 1,3-dipolar cycloaddition reactions. CR CHIM 2017. [DOI: 10.1016/j.crci.2017.02.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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12
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Gu K, Li Q, Lin H, Zhu J, Mo J, He S, Lu X, Jiang X, Sun H. Gamma secretase inhibitors: a patent review (2013 - 2015). Expert Opin Ther Pat 2017; 27:851-866. [PMID: 28350212 DOI: 10.1080/13543776.2017.1313231] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
INTRODUCTION Gamma secretase (GS) is an intricate and multi-subunits complex, and it can cut various transmembrane proteins. Now it is a therapeutic target for a number of diseases. However, due to some side effects, the clinical development of GSI is not successful. Therefore, searching for effective GSIs has become a key point in drug discovery. Areas covered: This review discusses the structure and function of GS and various types of GSIs. And this article seeks to give an overview of the patents or applications published from 2013 to 2015 in which novel chemical classes are claimed to inhibit the GS. Expert opinion: Firstly, further understanding the structure and function of GS to elucidate the disease mechanism and develop AD therapies is urgent. Secondly, if the bioequivalence, pharmacokinetics and selectivity can be improved greatly, some failed clinical inhibitors still can become the promising compounds for clinical trials. Thirdly, some weaknesses are exposed during the development of GSI, especially the insufficient potency, low brain penetration and poor selectivity. Finally, to find potent and selective GSI is the major direction in future. Moreover, to find new indications and dosing regimens in a trial of GSIs also can be seen as new ways.
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Affiliation(s)
- Kai Gu
- a Department of Medicinal Chemistry , China Pharmaceutical University , Nanjing , China
| | - Qi Li
- a Department of Medicinal Chemistry , China Pharmaceutical University , Nanjing , China
| | - Hongzhi Lin
- a Department of Medicinal Chemistry , China Pharmaceutical University , Nanjing , China
| | - Jie Zhu
- a Department of Medicinal Chemistry , China Pharmaceutical University , Nanjing , China
| | - Jun Mo
- a Department of Medicinal Chemistry , China Pharmaceutical University , Nanjing , China
| | - Siyu He
- a Department of Medicinal Chemistry , China Pharmaceutical University , Nanjing , China
| | - Xin Lu
- a Department of Medicinal Chemistry , China Pharmaceutical University , Nanjing , China
| | - Xueyang Jiang
- b Key Laboratory of Biomedical Functional Materials, School of Science , China Pharmaceutical University , Nanjing , China
| | - Haopeng Sun
- a Department of Medicinal Chemistry , China Pharmaceutical University , Nanjing , China
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13
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Wang Q, Zhang Z, Chen C, Yang H, Han Z, Dong XQ, Zhang X. Iridium catalysts with modular axial-unfixed biphenyl phosphine–oxazoline ligands: asymmetric hydrogenation of α,β-unsaturated carboxylic acids. Org Chem Front 2017. [DOI: 10.1039/c6qo00677a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Axial-unfixed biphenyl phosphine–oxazoline ligands were successfully applied to Ir-catalyzed asymmetric hydrogenation of α,β-unsaturated carboxylic acids.
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Affiliation(s)
- Qian Wang
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P. R. China
| | - Zongpeng Zhang
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P. R. China
| | - Caiyou Chen
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P. R. China
| | - Hailong Yang
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P. R. China
| | - Zhengyu Han
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P. R. China
| | - Xiu-Qin Dong
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P. R. China
| | - Xumu Zhang
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P. R. China
- Department of Chemistry
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14
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Christensen M, Nolting A, Shevlin M, Weisel M, Maligres PE, Lee J, Orr RK, Plummer CW, Tudge MT, Campeau LC, Ruck RT. Enantioselective Synthesis of α-Methyl-β-cyclopropyldihydrocinnamates. J Org Chem 2016; 81:824-30. [DOI: 10.1021/acs.joc.5b02296] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Melodie Christensen
- Department
of Process and Analytical Chemistry, Merck Research Laboratories, Rahway, New Jersey 07065, United States
| | - Andrew Nolting
- Department
of Process and Analytical Chemistry, Merck Research Laboratories, Rahway, New Jersey 07065, United States
| | - Michael Shevlin
- Department
of Process and Analytical Chemistry, Merck Research Laboratories, Rahway, New Jersey 07065, United States
| | - Mark Weisel
- Department
of Process and Analytical Chemistry, Merck Research Laboratories, Rahway, New Jersey 07065, United States
| | - Peter E. Maligres
- Department
of Process and Analytical Chemistry, Merck Research Laboratories, Rahway, New Jersey 07065, United States
| | - Joshua Lee
- Department
of Process and Analytical Chemistry, Merck Research Laboratories, Rahway, New Jersey 07065, United States
| | - Robert K. Orr
- Department
of Process and Analytical Chemistry, Merck Research Laboratories, Rahway, New Jersey 07065, United States
| | - Christopher W. Plummer
- Department
of Discovery Chemistry, Merck Research Laboratories, Kenilworth, New Jersey 07033, United States
| | - Matthew T. Tudge
- Department
of Process and Analytical Chemistry, Merck Research Laboratories, Rahway, New Jersey 07065, United States
| | - Louis-Charles Campeau
- Department
of Process and Analytical Chemistry, Merck Research Laboratories, Rahway, New Jersey 07065, United States
| | - Rebecca T. Ruck
- Department
of Process and Analytical Chemistry, Merck Research Laboratories, Rahway, New Jersey 07065, United States
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15
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Abstract
The short-term effects of benzodiazepines on memory are well established and are suspected in the long term. Eleven studies have been published so far concerning benzodiazepine use and the risk of dementia disorders; nine of these studies concluded these drugs have a deleterious effect, one found a protective effect, and one (the most recently published) observed no effect. The positive association found in some studies could be due to a reverse causation bias since the main indications for benzodiazepines (e.g. sleep disorders, anxiety) can also be prodromes of dementia disorders. This bias is less likely for treatments started more than 10 years before the diagnosis. Among others, three mechanisms could underlie the potential influence of benzodiazepines on the development of dementia disorders. First, benzodiazepines can decrease beta-site amyloid precursor protein-cleaving enzyme 1 (BACE-1) and γ-secretase activity and slow down the accumulation of Aβ oligomers in the brain. This potential positive effect has never been confirmed; the same is true for the prevention of excitotoxicity through benzodiazepine anti-glutamatergic action. Second, since astrocytes located in the area of amyloid plaques could have gamma-aminobutyric acid (GABA)-secreting activity, patients with pre-dementia lesions could be at increased risk of presenting with more pronounced deleterious cognitive effects of benzodiazepines. Finally, owing to the neural compensation and cognitive reserve concepts, some subjects could cope with initial lesions by using/developing alternative networks. By lowering the brain activation level, benzodiazepines could limit this capacity. In conclusion, it is essential that animal studies explore the mechanistic hypotheses of this association found by most of the pharmacoepidemiological studies conducted on this topic.
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Yang S, Zhu SF, Zhang CM, Song S, Yu YB, Li S, Zhou QL. Enantioselective iridium-catalyzed hydrogenation of α-arylcinnamic acids and synthesis of (S)-equol. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.03.118] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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17
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Esselens C, Sannerud R, Gallardo R, Baert V, Kaden D, Serneels L, De Strooper B, Rousseau F, Multhaup G, Schymkowitz J, Langedijk JPM, Annaert W. Peptides based on the presenilin-APP binding domain inhibit APP processing and Aβ production through interfering with the APP transmembrane domain. FASEB J 2012; 26:3765-78. [PMID: 22661005 DOI: 10.1096/fj.11-201368] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Presenilins (PSENs) form the catalytic component of the γ-secretase complex, responsible for intramembrane proteolysis of amyloid precursor protein (APP) and Notch, among many other membrane proteins. Previously, we identified a PSEN1-binding domain in APP, encompassing half of the transmembrane domain following the amyloid β (Aβ) sequence. Based on this, we designed peptides mimicking this interaction domain with the aim to selectively block APP processing and Aβ generation through interfering with enzyme-substrate binding. We identified a peptide sequence that, when fused to a virally derived translocation peptide, significantly lowered Aβ production (IC(50): 317 nM) in cell-free and cell-based assays using APP-carboxy terminal fragment as a direct γ-secretase substrate. Being derived from the APP sequence, this inhibitory peptide did not affect NotchΔE γ-cleavage, illustrating specificity and potential therapeutic value. In cell-based assays, the peptide strongly suppressed APP shedding, demonstrating that it exerts the inhibitory effect already upstream of γ-secretase, most likely through steric hindrance.
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Affiliation(s)
- Cary Esselens
- Laboratory for Membrane Trafficking, Center for Human Genetics, Katholieke Universiteit Leuven, Leuven, Belgium
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18
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Mwande-Maguene G, Jakhlal J, Lekana-Douki JB, Mouray E, Bousquet T, Pellegrini S, Grellier P, Ndouo FST, Lebibi J, Pelinski L. One-pot microwave-assisted synthesis and antimalarial activity of ferrocenyl benzodiazepines. NEW J CHEM 2011. [DOI: 10.1039/c1nj20551j] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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Phenol-derived chiral phosphine–phosphite ligands in the rhodium-catalyzed enantioselective hydrogenation of functionalized olefins. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2010.10.026] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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20
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Kreft AF, Martone R, Porte A. Recent advances in the identification of gamma-secretase inhibitors to clinically test the Abeta oligomer hypothesis of Alzheimer's disease. J Med Chem 2009; 52:6169-88. [PMID: 19694467 DOI: 10.1021/jm900188z] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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21
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Brouillette Y, Martinez J, Lisowski V. From Thienodiazepinediones to Thienopyridinones: Flexible Synthesis of Substituted Thieno[3,2-e][1,4]diazepinones and 6-Aminothieno[3,2-b]pyridinones. J Org Chem 2009; 74:4975-81. [DOI: 10.1021/jo900627a] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yann Brouillette
- Institut des Biomolécules Max-Mousseron, UMR 5247, CNRS, Universités Montpellier I et II, UFR des Sciences Pharmaceutiques et Biologiques, 15 Avenue Charles Flahault, 34093 Montpellier Cedex 5, France
| | - Jean Martinez
- Institut des Biomolécules Max-Mousseron, UMR 5247, CNRS, Universités Montpellier I et II, UFR des Sciences Pharmaceutiques et Biologiques, 15 Avenue Charles Flahault, 34093 Montpellier Cedex 5, France
| | - Vincent Lisowski
- Institut des Biomolécules Max-Mousseron, UMR 5247, CNRS, Universités Montpellier I et II, UFR des Sciences Pharmaceutiques et Biologiques, 15 Avenue Charles Flahault, 34093 Montpellier Cedex 5, France
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22
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McLeod J, Curtis N, Lewis HD, Good MA, Fagan MJ, Genever PG. γ‐Secretase‐dependent cleavage of amyloid precursor protein regulates osteoblast behavior. FASEB J 2009; 23:2942-55. [DOI: 10.1096/fj.08-121657] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jane McLeod
- Biomedical Tissue Research Department of Biology University of York York UK
| | - Neil Curtis
- Department of Engineering University of Hull Hull UK
| | - Huw D. Lewis
- Department of Molecular and Cellular Neuroscience Merck Sharp and Dohme Research Laboratories Harlow UK
| | - Mark A. Good
- School of Psychology Cardiff University Cardiff UK
| | | | - Paul G. Genever
- Biomedical Tissue Research Department of Biology University of York York UK
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23
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Three-dimensional quantitative structure-activity relationship (3D-QSAR) studies of various benzodiazepine analogues of γ-secretase inhibitors. J Mol Model 2008; 15:343-8. [DOI: 10.1007/s00894-008-0361-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2007] [Accepted: 09/22/2008] [Indexed: 10/21/2022]
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24
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Li S, Zhu SF, Zhang CM, Song S, Zhou QL. Iridium-Catalyzed Enantioselective Hydrogenation of α,β-Unsaturated Carboxylic Acids. J Am Chem Soc 2008; 130:8584-5. [DOI: 10.1021/ja802399v] [Citation(s) in RCA: 147] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shen Li
- State Key Laboratory and Institute of Elemento-organic Chemistry, Nankai University, Tianjin 300071, China
| | - Shou-Fei Zhu
- State Key Laboratory and Institute of Elemento-organic Chemistry, Nankai University, Tianjin 300071, China
| | - Can-Ming Zhang
- State Key Laboratory and Institute of Elemento-organic Chemistry, Nankai University, Tianjin 300071, China
| | - Song Song
- State Key Laboratory and Institute of Elemento-organic Chemistry, Nankai University, Tianjin 300071, China
| | - Qi-Lin Zhou
- State Key Laboratory and Institute of Elemento-organic Chemistry, Nankai University, Tianjin 300071, China
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25
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Beghyn T, Deprez-Poulain R, Willand N, Folleas B, Deprez B. Natural compounds: leads or ideas? Bioinspired molecules for drug discovery. Chem Biol Drug Des 2008; 72:3-15. [PMID: 18554253 DOI: 10.1111/j.1747-0285.2008.00673.x] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In this article, we compare drugs of natural origin to synthetic compounds and analyze the reasons why natural compounds occupy a place of choice in the current pharmacopoeia. The observations reported here support the design of synthetic compounds inspired from plant alkaloids and their biosynthetic pathway. Our reasoning leads to very efficient syntheses of compounds which complexity matches that of indolomonoterpenic alkaloids.
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Affiliation(s)
- Terence Beghyn
- INSERM U761, Biostructures and Drug Discovery, Lille, F-59006, France
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26
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Hashimoto T, Shiomi T, Ito JI, Nishiyama H. Asymmetric synthesis of α-chiral dihydrocinnamates by catalytic reductive aldol coupling and subsequent dehydroxylation. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.10.055] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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27
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Yang MG, Shi JL, Modi DP, Wells J, Cochran BM, Wolf MA, Thompson LA, Ramanjulu MM, Roach AH, Zaczek R, Robertson DW, Wexler RR, Olson RE. Design and synthesis of benzoazepinone-derived cyclic malonamides and aminoamides as potent γ-secretase inhibitors. Bioorg Med Chem Lett 2007; 17:3910-5. [PMID: 17502143 DOI: 10.1016/j.bmcl.2007.04.102] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2007] [Revised: 04/25/2007] [Accepted: 04/30/2007] [Indexed: 01/22/2023]
Abstract
We report the synthesis of benzoazepine-derived cyclic malonamides (2) and aminoamides (3) as gamma-secretase inhibitors for the potential treatment of Alzheimer's disease. The in vitro structure-activity relationships of 2 and 3 along with dog pharmacokinetic results are described.
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Affiliation(s)
- Michael G Yang
- Bristol-Myers Squibb Co., Research and Development, 5 Research Parkway, Wallingford, CT 06492, USA.
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28
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Chen W, McCormack P, Mohammed K, Mbafor W, Roberts S, Whittall J. Stereoselective Synthesis of Ferrocene-BasedC2-Symmetric Diphosphine Ligands: Application to the Highly Enantioselective Hydrogenation of α-Substituted Cinnamic Acids. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200604493] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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29
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Chen W, McCormack PJ, Mohammed K, Mbafor W, Roberts SM, Whittall J. Stereoselective Synthesis of Ferrocene-BasedC2-Symmetric Diphosphine Ligands: Application to the Highly Enantioselective Hydrogenation of α-Substituted Cinnamic Acids. Angew Chem Int Ed Engl 2007; 46:4141-4. [PMID: 17443750 DOI: 10.1002/anie.200604493] [Citation(s) in RCA: 97] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Weiping Chen
- StylaCats Ltd. Chemistry Department, University of Liverpool, Liverpool L69 7ZD, UK.
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30
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Qiu L, Li YM, Kwong FY, Yu WY, Fan QH, Chan AS. Highly Efficient Asymmetric Hydrogenation of α,β-Unsaturated Carboxylic Acids Catalyzed by Ruthenium(II)-Dipyridylphosphine Complexes. Adv Synth Catal 2007. [DOI: 10.1002/adsc.200600410] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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31
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Pissarnitski DA, Asberom T, Bara TA, Buevich AV, Clader JW, Greenlee WJ, Guzik HS, Josien HB, Li W, McEwan M, McKittrick BA, Nechuta TL, Parker EM, Sinning L, Smith EM, Song L, Vaccaro HA, Voigt JH, Zhang L, Zhang Q, Zhao Z. 2,6-Disubstituted N-arylsulfonyl piperidines as gamma-secretase inhibitors. Bioorg Med Chem Lett 2006; 17:57-62. [PMID: 17055268 DOI: 10.1016/j.bmcl.2006.09.094] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2006] [Revised: 09/28/2006] [Accepted: 09/29/2006] [Indexed: 11/22/2022]
Abstract
A novel piperidine series of gamma-secretase inhibitors, potentially useful for the treatment of Alzheimer's disease, is disclosed. SAR investigation revealed the requirement for cis-stereochemistry of the substituents attached to the core, which resulted in the chair-like diaxial conformation of the piperidine ring. The series was optimized to provide inhibitors with IC(50)'s in the single-digit nanomolar range. Absolute stereochemistry of the active enantiomer was assigned.
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Affiliation(s)
- Dmitri A Pissarnitski
- Department of Chemical Research, Schering-Plough Research Institute, 2015 Galloping Hill Rd., Kenilworth, NJ 07033, USA.
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32
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Clarke EE, Churcher I, Ellis S, Wrigley JD, Lewis HD, Harrison T, Shearman MS, Beher D. Intra- or Intercomplex Binding to the γ-Secretase Enzyme. J Biol Chem 2006. [DOI: 10.1016/s0021-9258(19)84040-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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33
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Kálmán J, Palotás M, Pákáski M, Hugyecz M, Janka Z, Palotás A. Unchanged rat brain amyloid precursor protein levels after exposure to benzodiazepines in vivo. Eur J Anaesthesiol 2006; 23:772-5. [PMID: 16884554 DOI: 10.1017/s0265021506000494] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/08/2006] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND OBJECTIVE Recent studies emphasize a positive correlation between (cardiac) surgical interventions and increased risk for developing Alzheimer's disease in the late postoperative period. Since amyloid precursor protein and its neurotoxic derivatives play key roles in the development of Alzheimer's dementia, the impact of several agents used in the intra- and perioperative period is examined. METHOD Amyloid precursor protein concentrations were assessed by semi-quantitative Western-immunoblot in brains of rats following intraperitoneal treatment with diazepam and midazolam. RESULTS There were no significant changes in the amyloid precursor protein concentrations. CONCLUSION Both diazepam and midazolam are considered to be relatively safe with respect to amyloid precursor protein metabolism.
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Affiliation(s)
- J Kálmán
- University of Szeged, Department of Psychiatry, Hungary
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34
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Clarke EE, Churcher I, Ellis S, Wrigley JDJ, Lewis HD, Harrison T, Shearman MS, Beher D. Intra- or intercomplex binding to the gamma-secretase enzyme. A model to differentiate inhibitor classes. J Biol Chem 2006; 281:31279-89. [PMID: 16899457 DOI: 10.1074/jbc.m605051200] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Gamma-secretase is one of the critical enzymes required for the generation of amyloid-beta peptides from the beta-amyloid precursor protein. Because amyloid-beta peptides are generally accepted to play a key role in Alzheimer disease, gamma-secretase inhibition holds the promise for a disease-modifying therapy for this neurodegenerative condition. Although recent progress has enhanced the understanding of the biology and composition of the gamma-secretase enzyme complex, less information is available on the actual interaction of various inhibitor classes with the enzyme. Here we show that the two principal classes of inhibitor described in the scientific and patent literature, aspartyl protease transition state analogue and small molecule non-transition state inhibitors, display fundamental differences in the way they interact with the enzyme. Taking advantage of a gamma-secretase enzyme overexpressing cellular system and different radiolabeled gamma-secretase inhibitors, we observed that the maximal binding of non-transition state gamma-secretase inhibitors accounts only for half the number of catalytic sites of the recombinant enzyme complex. This characteristic stoichiometry can be best accommodated with a model whereby the non-transition state inhibitors bind to a unique site at the interface of a dimeric enzyme. Subsequent competition studies confirm that this site appears to be targeted by the main classes of small molecule gamma-secretase inhibitor. In contrast, the non-steroidal anti-inflammatory drug gamma-secretase modulator sulindac sulfide displayed noncompetitive antagonism for all types of inhibitor. This finding suggests that non-steroidal anti-inflammatory drug-type gamma-secretase modulators target an alternative site on the enzyme, thereby changing the conformation of the binding sites for gamma-secretase inhibitors.
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Affiliation(s)
- Earl E Clarke
- Department of Molecular and Cellular Neuroscience, Merck Sharp and Dohme Research Laboratories, the Neuroscience Research Centre, Terlings Park, Harlow, Essex CM20 2QR, United Kingdom
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35
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Scott JP, Mullens PR, Brewer SE, Brands KMJ, Chilenski JR, Davies AJ, Gibb AD, Lieberman DR, Oliver SF, Dolling UH. The conformational bias of aryl, arylsulfonyl geminally substituted tertiary carbon centers: applications in substrate-based stereocontrol. Org Biomol Chem 2006; 4:1806-10. [PMID: 16633573 DOI: 10.1039/b601647b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Intramolecular nitrile oxide-olefin cycloaddition to form hexahydrobenzisoxazole 14, which engenders a phenylsulfonyl, 2,5-difluorophenyl geminally substituted carbon substructure, proceeds with up to 99% ds. A rationalization of the high level of substrate-based stereo-induction observed in this and related ketone and acrylonitrile metallohydride reductions, supported by single crystal X-ray crystallography, is presented.
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Affiliation(s)
- Jeremy P Scott
- Department of Process Research, Merck Sharp & Dohme Research Laboratories, Hoddesdon, Hertfordshire, UK.
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36
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Hoen R, Boogers JAF, Bernsmann H, Minnaard AJ, Meetsma A, Tiemersma-Wegman TD, de Vries AHM, de Vries JG, Feringa BL. Achiral Ligands Dramatically Enhance Rate and Enantioselectivity in the Rh/Phosphoramidite-Catalyzed Hydrogenation of α,β-Disubstituted Unsaturated Acids. Angew Chem Int Ed Engl 2005. [DOI: 10.1002/ange.200500784] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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37
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Hoen R, Boogers JAF, Bernsmann H, Minnaard AJ, Meetsma A, Tiemersma-Wegman TD, de Vries AHM, de Vries JG, Feringa BL. Achiral Ligands Dramatically Enhance Rate and Enantioselectivity in the Rh/Phosphoramidite-Catalyzed Hydrogenation of α,β-Disubstituted Unsaturated Acids. Angew Chem Int Ed Engl 2005; 44:4209-12. [PMID: 15929156 DOI: 10.1002/anie.200500784] [Citation(s) in RCA: 162] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Rob Hoen
- Department of Organic Chemistry, Stratingh Institute, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
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38
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Kotake T, Hayashi Y, Rajesh S, Mukai Y, Takiguchi Y, Kimura T, Kiso Y. Design and synthesis of a new polymer-supported Evans-type oxazolidinone: an efficient chiral auxiliary in the solid-phase asymmetric alkylation reactions. Tetrahedron 2005. [DOI: 10.1016/j.tet.2005.01.135] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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39
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Laras Y, Quéléver G, Garino C, Pietrancosta N, Sheha M, Bihel F, Wolfe MS, Kraus JL. Substituted thiazolamide coupled to a redox delivery system: a new γ-secretase inhibitor with enhanced pharmacokinetic profile. Org Biomol Chem 2005; 3:612-8. [PMID: 15703796 DOI: 10.1039/b415090b] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Inhibition of gamma-secretase, one of the enzymes responsible for the cleavage of the amyloid precursor protein (APP) to produce pathogenic A beta peptides, is an attractive approach for the treatment of Alzheimer's disease. We have designed a new gamma-secretase thiazolamide inhibitor bearing a dihydronicotinoyl moiety as Redox Delivery System which allows specific delivery of the drug to the brain. Through, on the one hand, A beta peptide production measurements by specific in vitro assays (gamma-secretase Cell Free assay and Cell Based assay on HEK 293 APP transfected cells) and, on the other hand, pharmacokinetic studies on animal models, the new inhibitor shows a good pharmacokinetic profile as well as a potent gamma-secretase inhibitory activity in vitro. From the obtained results, it is expected that drug will be mainly delivered to the CNS with low diffusion in the peripheral tissues. Consequently the side effects of this gamma-secretase inhibitor on the immune cells could be reduced.
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Affiliation(s)
- Younes Laras
- INSERM U-623, Institut de Biologie du Developpement de Marseille, CNRS-INSERM-Universite de la Mediterranee, Laboratoire de Chimie Biomoleculaire, 13288 Marseille Cedex 09, France
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40
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Garino C, Bihel F, Souard F, Quéléver G, Kraus JL. N-Acyl substituted 7-amino-4-chloroisocoumarin: A peptide degradation model via an imide mechanism. Bioorg Med Chem Lett 2004; 14:1771-4. [PMID: 15026068 DOI: 10.1016/j.bmcl.2004.01.030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2003] [Accepted: 01/14/2004] [Indexed: 11/22/2022]
Abstract
During the coupling reaction between 3-alkoxy-7-amino-4-chloroisocoumarin and N-acyl alanine dipeptide, an unexpected deamidation reaction was observed. The proposed mechanism for this reaction involved the formation of an imide intermediate which after cleavage led to the release of amino acid moiety. The described deamidation reaction represents the first chemical model involving a non-peptidic moiety, which mimics biological and chemical deamidation processes occurring in proteins or peptides incorporating an asparagine or a glutamine residue.
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Affiliation(s)
- Cédrik Garino
- INSERM U-382, Institut de Biologie du Développement de Marseille, CNRS-INSERM-Université de la Méditerranée, Faculté des Sciences de Luminy, case 907, 13288 Marseille Cedex 09, France
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41
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Gillespie P, Goodnow RA. The Hit-to-Lead Process in Drug Discovery. ANNUAL REPORTS IN MEDICINAL CHEMISTRY 2004. [DOI: 10.1016/s0065-7743(04)39022-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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42
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Owens AP, Nadin A, Talbot AC, Clarke EE, Harrison T, Lewis HD, Reilly M, Wrigley JDJ, Castro JL. High affinity, bioavailable 3-Amino-1,4-benzodiazepine-Based γ-Secretase inhibitors. Bioorg Med Chem Lett 2003; 13:4143-5. [PMID: 14592525 DOI: 10.1016/j.bmcl.2003.07.031] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
In this paper, we describe the development of a novel series of high affinity, orally bioavailable 3-amino-1,4 benzodiazepine-based gamma-secretase inhibitors for the potential treatment of Alzheimer's disease. We disclose structure-activity relationships based around the 1, 3 and 5 positions of the benzodiazepine core structure.
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Affiliation(s)
- Andrew P Owens
- Department of Medicinal Chemistry, Merck Sharp & Dohme Research Laboratories, The Neuroscience Research Centre, Terlings Park, Eastwick Road, Harlow, Essex CM20 2QR, UK.
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43
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Churcher I, Williams S, Kerrad S, Harrison T, Castro JL, Shearman MS, Lewis HD, Clarke EE, Wrigley JDJ, Beher D, Tang YS, Liu W. Design and synthesis of highly potent benzodiazepine gamma-secretase inhibitors: preparation of (2S,3R)-3-(3,4-difluorophenyl)-2-(4-fluorophenyl)-4- hydroxy-N-((3S)-1-methyl-2-oxo-5- phenyl-2,3-dihydro-1H-benzo[e][1,4]-diazepin-3-yl)butyramide by use of an asymmetric Ireland-Claisen rearrangement. J Med Chem 2003; 46:2275-8. [PMID: 12773031 DOI: 10.1021/jm034058a] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Novel benzodiazepine-containing gamma-secretase inhibitors for potential use in Alzheimer's disease have been designed that incorporate a substituted hydrocinnamide C-3 side chain. A syn combination of alpha-alkyl or aryl and beta-hydroxy or hydroxymethyl substituents was shown to give highly potent compounds. In particular, (2S,3R)-3-(3,4-difluorophenyl)-2-(4-fluorophenyl)-4-hydroxy-N-((3S)-2-oxo-5-phenyl-2,3-dihydro-1H-benzo[e][1,4]diazepin-3-yl)butyramide (34) demonstrated excellent in vitro potency (IC(50) = 0.06 nM). 34 could also be selectively methylated to give [(3)H]-28, which is of use in radioligand binding assays.
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Affiliation(s)
- Ian Churcher
- Department of Medicinal Chemistry, The Neuroscience Research Centre, Merck Sharp & Dohme Research Laboratories, Terlings Park, Eastwick Road, Harlow, Essex, CM20 2QR, UK.
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44
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Abstract
Alzheimer's disease afflicts every tenth human aged over 65. Despite the dramatic progress that has been made in understanding the disease, the exact cause of Alzheimer's disease is still unknown. Most gene mutations associated with Alzheimer's disease point at the same culprits: amyloid precursor protein and ultimately amyloid beta. The enigmatic proteases alpha-,beta-, and gamma-secretase are the three executioners of amyloid precursor protein processing, and disruption of their delicate balance is suspected to result in Alzheimer's disease. Significant progress has been made in the selective control of these proteases, regardless of the availability of structural information. Not even the absence of a robust cell-free assay for gamma-secretase could hamper the identification of nonpeptidic inhibitors of this enzyme for long. Within five years, four distinctly different structural moieties were developed and the first drug candidates are in clinical trials. Unfortunately, selective inhibition of amyloid beta formation remains a crucial issue because fundamental fragments of the gamma-secretase complex are important for other signaling events. This problem makes beta-secretase inhibition and alpha-secretase induction even more appealing.
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Affiliation(s)
- Boris Schmidt
- Clemens-Schöpf-Institute for Organic Chemistry and Biochemistry TU Darmstadt, Petersenstrasse 22 64287 Darmstadt, Germany.
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Nadin A, López JMS, Owens AP, Howells DM, Talbot AC, Harrison T. New synthesis of 1,3-dihydro-1,4-benzodiazepin-2(2H)-ones and 3-amino-1,3-dihydro-1,4-benzodiazepin-2(2H)-ones: Pd-catalyzed cross-coupling of imidoyl chlorides with organoboronic acids. J Org Chem 2003; 68:2844-52. [PMID: 12662061 DOI: 10.1021/jo026860a] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A new approach to the synthesis of 1,4-benzodiazepines and 3-amino-1,4-benzodiazepines, which employs the Pd-catalyzed cross-coupling reaction of an imidoyl chloride with an organometallic reagent as the key step, is described. A five-step synthesis of a key intermediate is described and it is shown that in only four further steps (three couplings and a TFA-mediated BOC-deprotection) a wide variety of N1-, C3-amino-, C5-carbon-, or nitrogen-substituted 1,4-benzodiazepines can be synthesized.
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Affiliation(s)
- Alan Nadin
- Department of Medicinal Chemistry, Merck Sharp & Dohme Research Laboratories, The Neuroscience Research Centre, Terlings Park, Harlow, Essex, CM20 2QR, UK.
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