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Nakamura S, Furukawa T, Hatanaka T, Funahashi Y. Enantioselective aza-Friedel–Crafts reaction of cyclic ketimines with indoles using chiral imidazoline–phosphoric acid catalysts. Chem Commun (Camb) 2018; 54:3811-3814. [DOI: 10.1039/c8cc00594j] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A highly enantioselective aza-Friedel Crafts reaction of cyclic 4-aryl-3-oxo-1,2,5-thiadiazol-1,1-oxides as cyclic ketimines with indoles was developed.
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Affiliation(s)
- Shuichi Nakamura
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology
- Showa-ku
- Japan
- Frontier Research Institute for Material Science, Nagoya Institute of Technology
- Showa-ku
| | - Takashi Furukawa
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology
- Showa-ku
- Japan
| | - Tsubasa Hatanaka
- Department of Chemistry, Graduate School of Science, Osaka University
- Toyonaka
- Japan
| | - Yasuhiro Funahashi
- Department of Chemistry, Graduate School of Science, Osaka University
- Toyonaka
- Japan
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2
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Zhao MX, Dong ZW, Zhu GY, Zhao XL, Shi M. Diastereo- and enantioselective Mannich/cyclization cascade reaction of isocyanoacetates with cyclic sulfamide ketimines by cinchona alkaloid squaramide/AgOAc cooperative catalysis. Org Biomol Chem 2018; 16:4641-4649. [DOI: 10.1039/c8ob01090k] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This reaction provides facile access to a variety of optically active imidazoline-fused sulfahydantoin derivatives in excellent yields and good to excellent stereoselectivities.
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Affiliation(s)
- Mei-Xin Zhao
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Zhi-Wen Dong
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Guang-Yu Zhu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Xiao-Li Zhao
- Department of Chemistry
- East China Normal University
- Shanghai
- China
| | - Min Shi
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- East China University of Science and Technology
- Shanghai 200237
- China
- State Key Laboratory of Organometallic Chemistry
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3
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Zamani F, Pyne SG, Hyland CJT. Oxazolidinones and 2,5-Dihydrofurans via Zinc-Catalyzed Regioselective Allenylation Reactions of l-α-Amino Aldehydes. J Org Chem 2017; 82:6819-6830. [PMID: 28557457 DOI: 10.1021/acs.joc.7b00969] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The simultaneous control of diastereoselectivity and regioselectivity in Zn-catalyzed allenylation reactions of N-protected l-α-amino aldehydes is reported. A reversal in diastereoselectivity could be realized by variation of the α-amino aldehyde protecting groups. A range of 1-allenyl-2-amino alcohols were obtained with excellent regioselectivity and converted to oxazolidinones and dihydrofurans. Many of which could be isolated as single diastereoisomers and without significant erosion of ee, making this a practical catalytic synthesis of highly functionalized heterocycles.
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Affiliation(s)
- Farzad Zamani
- School of Chemistry, University of Wollongong , Wollongong, New South Wales 2522, Australia
| | - Stephen G Pyne
- School of Chemistry, University of Wollongong , Wollongong, New South Wales 2522, Australia
| | - Christopher J T Hyland
- School of Chemistry, University of Wollongong , Wollongong, New South Wales 2522, Australia
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4
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Zhu ZH, Chen ML, Jiang GF. Asymmetric synthesis of 4-aryl-1,2,5-thiadiazolidin-3-one 1,1-dioxides via Pd-catalyzed hydrogenation of cyclic ketimines. Org Biomol Chem 2017; 15:1325-1328. [PMID: 28102406 DOI: 10.1039/c6ob02655a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient access to optically active sulfahydantoins, 4-aryl-1,2,5-thiadiazolidin-3-one 1,1-dioxides, was developed through palladium-catalyzed asymmetric hydrogenation of the corresponding cyclic N-sulfonylketimines with up to 98% ee.
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Affiliation(s)
- Zhou-Hao Zhu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China.
| | - Meng-Lin Chen
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China.
| | - Guo-Fang Jiang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China.
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5
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Li Y, Yu YN, Xu MH. Simple Open-Chain Phosphite-Olefin as Ligand for Rh-Catalyzed Asymmetric Arylation of Cyclic Ketimines: Enantioselective Access to gem-Diaryl α-Amino Acid Derivatives. ACS Catal 2015. [DOI: 10.1021/acscatal.5b02403] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Yi Li
- State Key Laboratory of Drug
Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Yue-Na Yu
- State Key Laboratory of Drug
Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Ming-Hua Xu
- State Key Laboratory of Drug
Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
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6
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Lucas SD, Gonçalves LM, Carvalho LAR, Correia HF, Da Costa EMR, Guedes RA, Moreira R, Guedes RC. Optimization of O3-Acyl Kojic Acid Derivatives as Potent and Selective Human Neutrophil Elastase Inhibitors. J Med Chem 2013; 56:9802-6. [DOI: 10.1021/jm4011725] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Susana D. Lucas
- Instituto de Investigação do Medicamento
(iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Lídia M. Gonçalves
- Instituto de Investigação do Medicamento
(iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Luís A. R. Carvalho
- Instituto de Investigação do Medicamento
(iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Henrique F. Correia
- Instituto de Investigação do Medicamento
(iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Eduardo M. R. Da Costa
- Instituto de Investigação do Medicamento
(iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Romina A. Guedes
- Instituto de Investigação do Medicamento
(iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Rui Moreira
- Instituto de Investigação do Medicamento
(iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Rita C. Guedes
- Instituto de Investigação do Medicamento
(iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
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7
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Neutrophil elastase inhibitors: recent advances in the development of mechanism-based and nonelectrophilic inhibitors. Future Med Chem 2012; 4:651-60. [PMID: 22458683 DOI: 10.4155/fmc.12.17] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Due to its implication in pathologies of prevalent diseases such as chronic obstructive pulmonary disease, fibrosis, bronchiectasis and ARDS, the serine protease, human neutrophil elastase, has been in focus for drug-development efforts over the last two decades. In recent years, continued efforts to identify and optimize novel mechanism-based inhibitors have led to a number of new inhibitors being reported. These compounds show promising potency and selectivity profiles, although their use is still limited by their inherent stability. Recently, two novel classes of potent and selective, synthetic, nonelectrophilic human neutrophil elastase inhibitors that display improved stability and overall drug-like properties have been reported. The most advanced compound from these classes, AZD9668, has been reported to show significant effects on relevant biomarkers in bronchiectasis and cystic fibrosis patient populations.
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Lucas SD, Gonçalves LM, Cardote TAF, Correia HF, Moreira R, Guedes RC. Structure based virtual screening for discovery of novel human neutrophil elastase inhibitors. MEDCHEMCOMM 2012. [DOI: 10.1039/c2md20090b] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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9
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Lucas SD, Costa E, Guedes RC, Moreira R. Targeting COPD: advances on low-molecular-weight inhibitors of human neutrophil elastase. Med Res Rev 2011; 33 Suppl 1:E73-101. [PMID: 21681767 DOI: 10.1002/med.20247] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) is a major increasing health problem and the World Health Organization (WHO) reports COPD as the fifth leading cause of death worldwide. COPD refers to a condition of inflammation and progressive weakening of the structure of the lung as well as irreversible narrowing of the airways. Current treatment is only palliative and no available drug halts the progression of the disease. Human neutrophil elastase (HNE) is a serine protease, which plays a major role in the COPD inflammatory process. The protease/anti-protease imbalance leads to an excess of extracellular HNE hydrolyzing elastin, the structural protein that confers elasticity to the lung tissue. Although HNE was identified as a therapeutic target for COPD more than 30 years ago, only Sivelestat (ONO-5046), an HNE inhibitor from Ono Pharmaceutical, has been approved for clinical use. Nevertheless, Sivelestat is only approved in Japan and its development in the USA was terminated in 2003. Other inhibitors in pre-clinical or phase I trials were discontinued for various reasons. Hence, there is an urgent need for low-molecular-weight synthetic elastase inhibitors and the present review discusses the recent advances on this field covering acylating agents, transition-state inhibitors, mechanism-based inhibitors, relevant natural products, and major patent disclosures.
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Affiliation(s)
- Susana D Lucas
- Research Institute for Medicines and Pharmaceutical Sciences, iMed UL, Faculty of Pharmacy, University of Lisbon, Av Prof Gama Pinto, 1649-003 Lisbon, Portugal
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Abstract
INTRODUCTION Chronic obstructive pulmonary disease (COPD) constitutes a worldwide health problem. There is currently an urgent and unmet need for the development of small molecule therapeutics capable of blocking and/or reversing the progression of the disorder. Recent studies have greatly illuminated our understanding of the multiple pathogenic processes associated with COPD. Of paramount importance is the key role played by proteases, oxidative stress, apoptosis and inflammation. Insights gained from these studies have made possible the exploration of new therapeutic approaches. AREAS COVERED An overview of major developments in COPD research with emphasis on low-molecular mass neutrophil elastase inhibitors is described in this review. EXPERT OPINION Great strides have been made toward our understanding of the biochemical and cellular events associated with COPD. However, our knowledge regarding the inter-relationships among the multiple pathogenic mechanisms and their mediators involved is still limited. The problem is further compounded by the unavailability of suitable validated biomarkers for assessing the efficacy of potential therapeutic interventions. The complexity of COPD suggests that effective therapeutic interventions may require the administration of more than one agent such as a human neutrophil elastase or MMP-12 inhibitor with an anti-inflammatory agent such as a PDE4 inhibitor or a dual function agent capable of disrupting the cycle of proteolysis, apoptosis, inflammation and oxidative stress.
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Affiliation(s)
- William C Groutas
- Wichita State University, Department of Chemistry, Wichita, KS 67260, USA.
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11
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Dou D, He G, Alliston KR, Groutas WC. Dual function inhibitors of relevance to chronic obstructive pulmonary disease. Bioorg Med Chem Lett 2010; 21:3177-80. [PMID: 21511470 DOI: 10.1016/j.bmcl.2010.12.033] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2010] [Revised: 12/03/2010] [Accepted: 12/07/2010] [Indexed: 10/18/2022]
Abstract
The general strategy and rationale underlying the design of COPD therapeutics that possess protease inhibitory activity and are also capable of releasing a species that attenuates inflammation by inhibiting caspase-1, are described. The synthesis and in vitro biochemical evaluation of a dual function molecule that sequentially inhibits HNE and caspase-1 in a time-dependent manner is reported.
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Affiliation(s)
- Dengfeng Dou
- Department of Chemistry, Wichita State University, Wichita, KS 67260, USA
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12
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Dou D, He G, Kuang R, Fu Q, Venkataraman R, Groutas WC. Effects of structure on inhibitory activity in a series of mechanism-based inhibitors of human neutrophil elastase. Bioorg Med Chem 2010; 18:6646-50. [PMID: 20728366 DOI: 10.1016/j.bmc.2010.07.071] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2010] [Revised: 07/28/2010] [Accepted: 07/30/2010] [Indexed: 11/26/2022]
Abstract
A structurally-diverse series of carboxylate derivatives based on the 1,2,5-thiadiazolidin-one 1,1 dioxide scaffold were synthesized and used to probe the S' subsites of human neutrophil elastase (HNE) and neutrophil proteinase 3 (Pr 3). Several compounds are potent inhibitors of HNE but devoid of inhibitory activity toward Pr 3, suggesting that the S' subsites of HNE exhibit significant plasticity and can, unlike Pr 3, tolerate various large hydrophobic groups. The results provide a promising framework for the design of highly selective inhibitors of the two enzymes.
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Affiliation(s)
- Dengfeng Dou
- Department of Chemistry, Wichita State University, Wichita, KS 67260, United States
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13
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He G, Dou D, Wei L, Alliston KR, Groutas WC. Inhibitors of human neutrophil elastase based on a highly functionalized N-amino-4-imidazolidinone scaffold. Eur J Med Chem 2010; 45:4280-7. [PMID: 20638756 DOI: 10.1016/j.ejmech.2010.06.028] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2010] [Revised: 05/17/2010] [Accepted: 06/18/2010] [Indexed: 11/16/2022]
Abstract
A series of compounds based on the N-amino-4-imidazolidinone scaffold was synthesized and screened against human neutrophil elastase (HNE). These studies lead to the identification of a selective, low micromolar reversible competitive inhibitor of HNE.
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Affiliation(s)
- Guijia He
- Department of Chemistry, Wichita State University, 206 McKinley Hall, 1845 Fairmount, Wichita, Kansas 67260, USA
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14
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Mulchande J, Simões SI, Gaspar MM, Eleutério CV, Oliveira R, Cruz MEM, Moreira R, Iley J. Synthesis, stability, biochemical and pharmacokinetic properties of a new potent and selective 4-oxo-β-lactam inhibitor of human leukocyte elastase. J Enzyme Inhib Med Chem 2010; 26:169-75. [PMID: 20545486 DOI: 10.3109/14756366.2010.486794] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The 4-oxo-β-lactams (azetidine-2,4-diones) are potent acylating agents of the human leukocyte elastase (HLE), a neutrophil serine protease that plays a key role in several inflammatory diseases. A novel 4-oxo-β-lactam containing a N-(4-(phenylsulphonylmethyl)phenyl) group, 3, was designed as a potential mechanism-based inhibitor capable of undergoing elimination of phenylsulphinate upon Ser-195 acylation. Compound 3 was found to be a potent slow-tight binding inhibitor of HLE, presenting a remarkable second-order rate constant of 1.46 x 10⁶ M⁻¹s⁻¹ and displaying selectivity over the proteinase 3 and cathepsin G. However, liberation of phenylsulphinate was not observed in the hydrolysis of 3 in both pH 7.4 phosphate buffer and human plasma. The C(max) values of 1207 μg/total blood, 179 μg/g spleen and 106 μg/g lung were determined by HPLC, following a single 30 mg/kg dose of 3 given intraperitoneally to NMRI mice, suggesting that the inhibitor distributes well into tissues. Although being a powerful selective inhibitor of HLE, 4-oxo-β-lactam 3 has a limited stability, being susceptible to off-target reactions (plasma and liver enzymes).
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Affiliation(s)
- Jalmira Mulchande
- Medicinal Chemistry, iMed.UL, Faculty of Pharmacy, University of Lisbon, Av. Prof. Gama Pinto, Lisbon, Portugal.
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Utilization of the 1,2,3,5-thiatriazolidin-3-one 1,1-dioxide scaffold in the design of potential inhibitors of human neutrophil proteinase 3. Bioorg Med Chem 2009; 18:1093-102. [PMID: 20061159 DOI: 10.1016/j.bmc.2009.12.057] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2009] [Revised: 12/15/2009] [Accepted: 12/17/2009] [Indexed: 11/22/2022]
Abstract
The S' subsites of human neutrophil proteinase 3 (Pr 3) were probed by constructing diverse libraries of compounds based on the 1,2,3,5-thiatriazolidin-3-one 1,1-dioxide using combinational and click chemistry methods. The multiple points of diversity embodied in the heterocyclic scaffold render it well-suited to the exploration of the S' subsites of Pr 3. Molecular modeling studies suggest that further exploration of the S' subsites of Pr 3 using the aforementioned heterocyclic scaffold may lead to the identification of highly selective, reversible competitive inhibitors of Pr 3.
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Mulchande J, Oliveira R, Carrasco M, Gouveia L, Guedes RC, Iley J, Moreira R. 4-Oxo-β-lactams (Azetidine-2,4-diones) Are Potent and Selective Inhibitors of Human Leukocyte Elastase. J Med Chem 2009; 53:241-53. [DOI: 10.1021/jm901082k] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Jalmira Mulchande
- iMed.UL, Faculty of Pharmacy, University of Lisbon, Av. Prof. Gama Pinto, 1649-003 Lisbon, Portugal
| | - Rudi Oliveira
- iMed.UL, Faculty of Pharmacy, University of Lisbon, Av. Prof. Gama Pinto, 1649-003 Lisbon, Portugal
| | - Marta Carrasco
- iMed.UL, Faculty of Pharmacy, University of Lisbon, Av. Prof. Gama Pinto, 1649-003 Lisbon, Portugal
| | - Luís Gouveia
- iMed.UL, Faculty of Pharmacy, University of Lisbon, Av. Prof. Gama Pinto, 1649-003 Lisbon, Portugal
| | - Rita C. Guedes
- iMed.UL, Faculty of Pharmacy, University of Lisbon, Av. Prof. Gama Pinto, 1649-003 Lisbon, Portugal
| | - Jim Iley
- Department of Chemistry and Analytical Sciences, The Open University, Milton Keynes, MK7 6AA, U.K
| | - Rui Moreira
- iMed.UL, Faculty of Pharmacy, University of Lisbon, Av. Prof. Gama Pinto, 1649-003 Lisbon, Portugal
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