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Sun H, Yang S, Li P, Shang X, Wang P, Zhang J, Yuan L, Yin R, Gao N, Zhao J. Comparative Assessment of APTT Reagents for Evaluating Anticoagulant Sensitivity of Fucosylated Glycosaminoglycans (FGs) Derived from Sea Cucumbers. Mar Drugs 2023; 21:568. [PMID: 37999392 PMCID: PMC10672211 DOI: 10.3390/md21110568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 10/26/2023] [Accepted: 10/28/2023] [Indexed: 11/25/2023] Open
Abstract
Fucosylated glycosaminoglycans (FGs) derived from sea cucumbers exhibit potent intrinsic Xase (iXase) inhibition, anticoagulation, and antithrombosis. Plasma activated partial thromboplastin time (APTT), a widely used screening test worldwide, is crucial for evaluating anticoagulant efficacy. However, the applicability of these commercially available APTT reagents for assessing anticoagulation of FGs remains unreported. In this study, we investigated the disparity between ellagic acid and colloidal silica APTT reagents in evaluating anticoagulation of dHG-5 and dHLFG-4, two depolymerized FGs, and elucidated the underlying rationale. The results demonstrated that dHG-5 and dHLFG-4 exhibited heightened sensitivity to the ellagic acid APTT reagent both in vitro and in vivo, and did not significantly affect the activation of APTT reagents for plasma. In addition, both ellagic acid and colloidal silica APTT reagents inhibited the anti-iXase of dHG-5 and dHLFG-4, and the inhibition of the ellagic acid APTT reagent was less pronounced compared to the colloidal silica APTT reagent. These findings suggest that the reduced impact of the ellagic acid APTT reagent on the anti-iXase activity of dHG-5 and dHLFG-4 is responsible for the increased sensitivity in plasma APTT analysis. This study offers valuable insights into the characteristics of two APTT reagents applied for assessing the anticoagulant activity of FG-related compounds.
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Affiliation(s)
- Huifang Sun
- School of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan 430074, China;
| | - Shasha Yang
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, China; (S.Y.); (P.L.); (X.S.); (P.W.); (J.Z.); (L.Y.); (R.Y.)
| | - Pengfei Li
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, China; (S.Y.); (P.L.); (X.S.); (P.W.); (J.Z.); (L.Y.); (R.Y.)
| | - Xiaolei Shang
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, China; (S.Y.); (P.L.); (X.S.); (P.W.); (J.Z.); (L.Y.); (R.Y.)
| | - Pin Wang
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, China; (S.Y.); (P.L.); (X.S.); (P.W.); (J.Z.); (L.Y.); (R.Y.)
| | - Jiali Zhang
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, China; (S.Y.); (P.L.); (X.S.); (P.W.); (J.Z.); (L.Y.); (R.Y.)
| | - Lin Yuan
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, China; (S.Y.); (P.L.); (X.S.); (P.W.); (J.Z.); (L.Y.); (R.Y.)
| | - Ronghua Yin
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, China; (S.Y.); (P.L.); (X.S.); (P.W.); (J.Z.); (L.Y.); (R.Y.)
| | - Na Gao
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, China; (S.Y.); (P.L.); (X.S.); (P.W.); (J.Z.); (L.Y.); (R.Y.)
| | - Jinhua Zhao
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, China; (S.Y.); (P.L.); (X.S.); (P.W.); (J.Z.); (L.Y.); (R.Y.)
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2
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A Structure Based Study of Selective Inhibition of Factor IXa over Factor Xa. Molecules 2021; 26:molecules26175372. [PMID: 34500804 PMCID: PMC8434132 DOI: 10.3390/molecules26175372] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 08/27/2021] [Accepted: 08/30/2021] [Indexed: 11/25/2022] Open
Abstract
Blood coagulation is an essential physiological process for hemostasis; however, abnormal coagulation can lead to various potentially fatal disorders, generally known as thromboembolic disorders, which are a major cause of mortality in the modern world. Recently, the FDA has approved several anticoagulant drugs for Factor Xa (FXa) which work via the common pathway of the coagulation cascade. A main side effect of these drugs is the potential risk for bleeding in patients. Coagulation Factor IXa (FIXa) has recently emerged as the strategic target to ease these risks as it selectively regulates the intrinsic pathway. These aforementioned coagulation factors are highly similar in structure, functional architecture, and inhibitor binding mode. Therefore, it remains a challenge to design a selective inhibitor which may affect only FIXa. With the availability of a number of X-ray co-crystal structures of these two coagulation factors as protein–ligand complexes, structural alignment, molecular docking, and pharmacophore modeling were employed to derive the relevant criteria for selective inhibition of FIXa over FXa. In this study, six ligands (three potent, two selective, and one inactive) were selected for FIXa inhibition and six potent ligands (four FDA approved drugs) were considered for FXa. The pharmacophore hypotheses provide the distribution patterns for the principal interactions that take place in the binding site. None of the pharmacophoric patterns of the FXa inhibitors matched with any of the patterns of FIXa inhibitors. Based on pharmacophore analysis, a selectivity of a ligand for FIXa over FXa may be defined quantitatively as a docking score of lower than −8.0 kcal/mol in the FIXa-grids and higher than −7.5 kcal/mol in the FXa-grids.
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3
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Sun H, Gao N, Ren L, Liu S, Lin L, Zheng W, Zhou L, Yin R, Zhao J. The components and activities analysis of a novel anticoagulant candidate dHG-5. Eur J Med Chem 2020; 207:112796. [PMID: 32942073 DOI: 10.1016/j.ejmech.2020.112796] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 08/25/2020] [Accepted: 08/28/2020] [Indexed: 01/13/2023]
Abstract
Intrinsic Xase (iXase), the last and rate-limiting enzyme complex in the intrinsic coagulation pathway, may be an ideal target for antithrombotic treatment. A depolymerized fraction of fucosylated glycosaminoglycan from sea cucumber Holothuria fuscopunctata, dHG-5 (Mw 5.2 kDa), showed potent and selective inhibition of iXase (IC50, 14 nM). In this work, the series of oligosaccharides contained in dHG-5 were purified and their precise structures were confirmed by 2D NMR and MS spectra. The relationships between anti-iXase, f.IXa-binding, anticoagulant and antithrombotic activities (y) and molecular weight (x) could be approximately expressed as the power function (y = a × xb), and these activity potencies of dHG-5 were approximately equivalent to the weighted average sum of that of its oligosaccharides. Given the prominent pharmacological properties, well-defined chemical composition and explicable relationships between dHG-5 and its oligosaccharides in pharmacological behaviors, dHG-5 is expected to be an ideal novel anticoagulant medicine.
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Affiliation(s)
- Huifang Sun
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Na Gao
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, 430074, China
| | - Lin Ren
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
| | - Shuang Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Lisha Lin
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wenqi Zheng
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, 430074, China
| | - Lutan Zhou
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ronghua Yin
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
| | - Jinhua Zhao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China; School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, 430074, China.
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4
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Jayne CL, Andreani T, Chan TY, Chelliah MV, Clasby MC, Dwyer M, Eagen KA, Fried S, Greenlee WJ, Guo Z, Hawes B, Hruza A, Ingram R, Keertikar KM, Neelamkavil S, Reichert P, Xia Y, Chackalamannil S. Discovery of hydroxy pyrimidine Factor IXa inhibitors. Bioorg Med Chem Lett 2020; 30:127279. [PMID: 32527459 DOI: 10.1016/j.bmcl.2020.127279] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 05/16/2020] [Accepted: 05/18/2020] [Indexed: 10/24/2022]
Abstract
The synthesis and structure activity relationship development of a pyrimidine series of heterocyclic Factor IXa inhibitors is described. Increased selectivity over Factor Xa inhibition was achieved through SAR expansion of the P1 element. Select compounds were evaluated in vivo to assess their plasma levels in rat.
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Affiliation(s)
- Charles L Jayne
- Department of Discovery Chemistry, Merck & Co., Inc., Kenilworth, NJ 07033, USA.
| | - Teresa Andreani
- Department of Discovery Chemistry, Merck & Co., Inc., Kenilworth, NJ 07033, USA
| | - Tin-Yau Chan
- Department of Discovery Chemistry, Merck & Co., Inc., Kenilworth, NJ 07033, USA
| | | | - Martin C Clasby
- Department of Discovery Chemistry, Merck & Co., Inc., Kenilworth, NJ 07033, USA
| | - Michael Dwyer
- Department of Discovery Chemistry, Merck & Co., Inc., Kenilworth, NJ 07033, USA
| | - Keith A Eagen
- Department of Discovery Chemistry, Merck & Co., Inc., Kenilworth, NJ 07033, USA
| | - Steve Fried
- Department of Biology, Merck & Co., Inc., Kenilworth, NJ 07033, USA
| | - William J Greenlee
- Department of Discovery Chemistry, Merck & Co., Inc., Kenilworth, NJ 07033, USA
| | - Zhuyan Guo
- Department of Discovery Chemistry, Merck & Co., Inc., Kenilworth, NJ 07033, USA
| | - Brian Hawes
- Department of Biology, Merck & Co., Inc., Kenilworth, NJ 07033, USA
| | - Alan Hruza
- Department of Discovery Chemistry, Merck & Co., Inc., Kenilworth, NJ 07033, USA
| | - Richard Ingram
- Department of Discovery Chemistry, Merck & Co., Inc., Kenilworth, NJ 07033, USA
| | - Kartik M Keertikar
- Department of Discovery Chemistry, Merck & Co., Inc., Kenilworth, NJ 07033, USA
| | | | - Paul Reichert
- Department of Discovery Chemistry, Merck & Co., Inc., Kenilworth, NJ 07033, USA
| | - Yan Xia
- Department of Discovery Chemistry, Merck & Co., Inc., Kenilworth, NJ 07033, USA
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5
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Wu J, Li X, Qi X, Duan X, Cracraft WL, Guzei IA, Liu P, Tang W. Site-Selective and Stereoselective O-Alkylation of Glycosides by Rh(II)-Catalyzed Carbenoid Insertion. J Am Chem Soc 2019; 141:19902-19910. [PMID: 31739665 DOI: 10.1021/jacs.9b11262] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Carbohydrates are synthetically challenging molecules with vital biological roles in all living systems. Selective synthesis and functionalization of carbohydrates provide tremendous opportunities to improve our understanding on the biological functions of this fundamentally important class of molecules. However, selective functionalization of seemingly identical hydroxyl groups in carbohydrates remains a long-standing challenge in chemical synthesis. We herein describe a practical and predictable method for the site-selective and stereoselective alkylation of carbohydrate hydroxyl groups via Rh(II)-catalyzed insertion of metal carbenoid intermediates. This represents one of the mildest alkylation methods for the systematic modification of carbohydrates. Density functional theory (DFT) calculations suggest that the site selectivity is determined in the Rh(II)-carbenoid insertion step, which prefers insertion into hydroxyl groups with an adjacent axial substituent. The subsequent intramolecular enolate protonation determines the unexpected high stereoselectivity. The most prevalent trans-1,2-diols in various pyranoses can be systematically and predictably differentiated based on the model derived from DFT calculations. We also demonstrated that the selective O-alkylation method could significantly improve the efficiency and stereoselectivity of glycosylation reactions. The alkyl groups introduced to carbohydrates by OH insertion reaction can serve as functional groups, protecting groups, and directing groups.
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Affiliation(s)
- Jicheng Wu
- School of Pharmacy , University of Wisconsin-Madison , Madison , Wisconsin 53705 , United States
| | - Xiaolei Li
- School of Pharmacy , University of Wisconsin-Madison , Madison , Wisconsin 53705 , United States
| | - Xiaotian Qi
- Department of Chemistry , University of Pittsburgh , Pittsburgh , Pennsylvania 15260 , United States
| | - Xiyan Duan
- School of Pharmacy , University of Wisconsin-Madison , Madison , Wisconsin 53705 , United States
| | - Weston L Cracraft
- Department of Chemistry , University of Wisconsin-Madison , Madison , Wisconsin 53706 , United States
| | - Ilia A Guzei
- Department of Chemistry , University of Wisconsin-Madison , Madison , Wisconsin 53706 , United States
| | - Peng Liu
- Department of Chemistry , University of Pittsburgh , Pittsburgh , Pennsylvania 15260 , United States.,Department of Chemical and Petroleum Engineering , University of Pittsburgh , Pittsburgh , Pennsylvania 15261 , United States
| | - Weiping Tang
- School of Pharmacy , University of Wisconsin-Madison , Madison , Wisconsin 53705 , United States.,Department of Chemistry , University of Wisconsin-Madison , Madison , Wisconsin 53706 , United States
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6
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Harada S, Tanikawa K, Homma H, Sakai C, Ito T, Nemoto T. Silver-Catalyzed Asymmetric Insertion into Phenolic O-H Bonds using Aryl Diazoacetates and Theoretical Mechanistic Studies. Chemistry 2019; 25:12058-12062. [PMID: 31120563 DOI: 10.1002/chem.201902126] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Indexed: 01/30/2023]
Abstract
An enantioselective insertion reaction of silver carbenes generated from donor-acceptor-substituted diazo compounds into the O-H bond of phenols was developed. A homobinuclear silver complex with a chiral phosphorous ligand was created in situ from AgNTf2 and (S)-XylylBINAP (in a 2:1 mole ratio). Detailed mechanistic studies using combined experimental and computational techniques revealed that one silver atom center of the catalyst forms a silver carbene and another one works as a Lewis acid for the nucleophilic addition of a phenol. Two counter-anions, two water molecules, and two silver atoms cooperatively mediate the subsequent protonation event to lower the activation energy and control enantioselectivity, affording an array of valuable α-aryl-α-aryloxy esters.
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Affiliation(s)
- Shingo Harada
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba, 260-8675, Japan
| | - Koki Tanikawa
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba, 260-8675, Japan
| | - Haruka Homma
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba, 260-8675, Japan
| | - Chigaya Sakai
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba, 260-8675, Japan
| | - Tsubasa Ito
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba, 260-8675, Japan
| | - Tetsuhiro Nemoto
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba, 260-8675, Japan.,Molecular Chirality Research Center, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan
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7
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Kabankin AS, Sinauridze EI, Lipets EN, Ataullakhanov FI. Computer Design of Low-Molecular-Weight Inhibitors of Coagulation Factors. BIOCHEMISTRY (MOSCOW) 2019; 84:119-136. [PMID: 31216971 DOI: 10.1134/s0006297919020032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The review discusses main approaches to searching for new low-molecular-weight inhibitors of coagulation factors IIa, Xa, IXa, and XIa and the results of such studies conducted from 2015 to 2018. For each of these factors, several inhibitors with IC50 < 10 nM have been found, some of which are now tested in clinical trials. However, none of the identified inhibitors meets the requirements for an "ideal" anticoagulant, so further studies are required.
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Affiliation(s)
- A S Kabankin
- Center for Theoretical Problems of Physicochemical Pharmacology, Russian Academy of Sciences, Moscow, 119991, Russia.
| | - E I Sinauridze
- Center for Theoretical Problems of Physicochemical Pharmacology, Russian Academy of Sciences, Moscow, 119991, Russia.,Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, 117997, Russia
| | - E N Lipets
- Center for Theoretical Problems of Physicochemical Pharmacology, Russian Academy of Sciences, Moscow, 119991, Russia.,Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, 117997, Russia
| | - F I Ataullakhanov
- Center for Theoretical Problems of Physicochemical Pharmacology, Russian Academy of Sciences, Moscow, 119991, Russia. .,Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, 117997, Russia.,Lomonosov Moscow State University, Faculty of Physics, Moscow, 119991, Russia.,Moscow Institute of Physics and Technology, Dolgoprudny, Moscow Region, 141701, Russia
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8
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Shen HQ, Xie HP, Sun L, Zhou YG. Enantioselective Carbene Insertion into O–H of Phenols with Chiral Palladium/2,2′-Biimidazole Complexes. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00219] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hong-Qiang Shen
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Huan-Ping Xie
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Lei Sun
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Yong-Gui Zhou
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
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9
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The selectivity and bioavailability improvement of novel oral anticoagulants: An overview. Eur J Med Chem 2018; 146:299-317. [PMID: 29407959 DOI: 10.1016/j.ejmech.2018.01.067] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Revised: 01/18/2018] [Accepted: 01/19/2018] [Indexed: 01/23/2023]
Abstract
Anticoagulants have exhibited a critical role in the prevention and/or treatment of thrombotic diseases. Up to now, kinds of novel oral anticoagulants, inhibiting plasma serine proteases in the coagulation cascade, have been developed to overcome the clinical limitations of classical anticoagulants (like warfarin and heparins). Some of them, such as Apixaban, Rivaroxaban, Edoxaban, and Dabigatran, have been approved by FDA in recent years. This review summarizes the discovery and optimization of representative novel oral anticoagulants with the aim to improve selectivity and bioavailability of compounds. The impact of different targets in the cascade on bleeding risk also is discussed. We hope some more effective, selective, and safer anticoagulants can be developed in the future on the basis of these design experiences.
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10
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Fischer PM. Design of Small-Molecule Active-Site Inhibitors of the S1A Family Proteases as Procoagulant and Anticoagulant Drugs. J Med Chem 2017; 61:3799-3822. [DOI: 10.1021/acs.jmedchem.7b00772] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Peter M. Fischer
- School of Pharmacy and Centre for Biomolecular Sciences, University of Nottingham, Nottingham NG7 2RD, U.K
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11
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Zhang Y, Yao Y, He L, Liu Y, Shi L. Rhodium(II)/Chiral Phosphoric Acid-Cocatalyzed Enantioselective O-H Bond Insertion of α-Diazo Esters. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700572] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Yiliang Zhang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering; Harbin Institute of Technology; Harbin 150001 People's Republic of China
- Shenzhen Graduate School; Harbin Institute of Technology; Shenzhen 518055 People's Republic of China
| | - Yuan Yao
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering; Harbin Institute of Technology; Harbin 150001 People's Republic of China
| | - Li He
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering; Harbin Institute of Technology; Harbin 150001 People's Republic of China
- Shenzhen Graduate School; Harbin Institute of Technology; Shenzhen 518055 People's Republic of China
| | - Yang Liu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering; Harbin Institute of Technology; Harbin 150001 People's Republic of China
| | - Lei Shi
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering; Harbin Institute of Technology; Harbin 150001 People's Republic of China
- Shenzhen Graduate School; Harbin Institute of Technology; Shenzhen 518055 People's Republic of China
- Hubei Key Laboratory of Drug Synthesis and Optimization; Jingchu University of Technology; Jingmen 448000 People's Republic of China
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12
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Ruan PP, Shen CH, Li L, Liu CY, Ye LW. A zinc-catalyzed oxidative reaction of ynamides with phenols and thiophenols: highly site-selective synthesis of versatile α-aryloxy amides and α-arylthio amides. Org Chem Front 2016. [DOI: 10.1039/c6qo00169f] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A zinc-catalyzed oxidative reaction of ynamides with phenols and thiophenols under mild reaction conditions has been developed, which provides various α-aryloxy amides and α-arylthio amides in moderate to good yields, respectively. Importantly, high chemoselectivity is achieved by such a non-noble metal-catalyzed alkyne oxidation.
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Affiliation(s)
- Peng-Peng Ruan
- State Key Laboratory of Physical Chemistry of Solid Surfaces & The Key Laboratory for Chemical Biology of Fujian Province
- Department of Chemistry
- Xiamen University
- Xiamen 361005
- China
| | - Cang-Hai Shen
- State Key Laboratory of Physical Chemistry of Solid Surfaces & The Key Laboratory for Chemical Biology of Fujian Province
- Department of Chemistry
- Xiamen University
- Xiamen 361005
- China
| | - Long Li
- State Key Laboratory of Physical Chemistry of Solid Surfaces & The Key Laboratory for Chemical Biology of Fujian Province
- Department of Chemistry
- Xiamen University
- Xiamen 361005
- China
| | - Chao-Yue Liu
- State Key Laboratory of Physical Chemistry of Solid Surfaces & The Key Laboratory for Chemical Biology of Fujian Province
- Department of Chemistry
- Xiamen University
- Xiamen 361005
- China
| | - Long-Wu Ye
- State Key Laboratory of Physical Chemistry of Solid Surfaces & The Key Laboratory for Chemical Biology of Fujian Province
- Department of Chemistry
- Xiamen University
- Xiamen 361005
- China
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13
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Meng D, Andre P, Bateman TJ, Berger R, Chen YH, Desai K, Dewnani S, Ellsworth K, Feng D, Geissler WM, Guo L, Hruza A, Jian T, Li H, Metzger J, Parker DL, Reichert P, Sherer EC, Smith CJ, Sonatore LM, Tschirret-Guth R, Wu J, Xu J, Zhang T, Campeau LC, Orr R, Poirier M, McCabe-Dunn J, Araki K, Nishimura T, Sakurada I, Hirabayashi T, Wood HB. Development of a novel tricyclic class of potent and selective FIXa inhibitors. Bioorg Med Chem Lett 2015; 25:5437-43. [PMID: 26318999 DOI: 10.1016/j.bmcl.2015.07.078] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Revised: 07/20/2015] [Accepted: 07/23/2015] [Indexed: 11/24/2022]
Abstract
Using structure based drug design, a novel class of potent coagulation factor IXa (FIXa) inhibitors was designed and synthesized. High selectivity over FXa inhibition was achieved. Selected compounds were evaluated in rat IV/PO pharmacokinetic (PK) studies and demonstrated desirable oral PK profiles. Finally, the pharmacodynamics (PD) of this class of molecules were evaluated in thrombin generation assay (TGA) in Corn Trypsin Inhibitor (CTI) citrated human plasma and demonstrated characteristics of a FIXa inhibitor.
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Affiliation(s)
- Dongfang Meng
- Department of Discovery Chemistry, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA.
| | - Patrick Andre
- Department of Cardiometabolic Disease, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Thomas J Bateman
- Department of Pharmacokinetics, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Richard Berger
- Department of Discovery Chemistry, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Yi-Heng Chen
- Department of Discovery Chemistry, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Kunal Desai
- Department of Cardiometabolic Disease, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Sunita Dewnani
- Department of Discovery Chemistry, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Kenneth Ellsworth
- Department of Pharmacology, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Daming Feng
- Department of Discovery Chemistry, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Wayne M Geissler
- Department of Pharmacology, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Liangqin Guo
- Department of Discovery Chemistry, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Alan Hruza
- Department of Structural Chemistry, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Tianying Jian
- Department of Discovery Chemistry, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Hong Li
- Department of Discovery Chemistry, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Joe Metzger
- Department of Cardiometabolic Disease, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Dann L Parker
- Department of Discovery Chemistry, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Paul Reichert
- Department of Structural Chemistry, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Edward C Sherer
- Department of Chemistry Modeling and Informatics, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Cameron J Smith
- Department of Discovery Chemistry, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Lisa M Sonatore
- Department of Pharmacology, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Richard Tschirret-Guth
- Department of Pharmacokinetics, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Jane Wu
- Department of Discovery Chemistry, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Jiayi Xu
- Department of Discovery Chemistry, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Ting Zhang
- Department of Discovery Chemistry, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Louis-Charles Campeau
- Department of Process Chemistry, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Robert Orr
- Department of Process Chemistry, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Marc Poirier
- Department of Process Chemistry, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Jamie McCabe-Dunn
- Department of Process Chemistry, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Kazuto Araki
- Discovery Research, Mochida Pharmaceutical Co., LTD, 7, Yotsuya 1-Chome, Shinjuku-ku, Tokyo 160-8515, Japan
| | - Teruyuki Nishimura
- Discovery Research, Mochida Pharmaceutical Co., LTD, 7, Yotsuya 1-Chome, Shinjuku-ku, Tokyo 160-8515, Japan
| | - Isao Sakurada
- Discovery Research, Mochida Pharmaceutical Co., LTD, 7, Yotsuya 1-Chome, Shinjuku-ku, Tokyo 160-8515, Japan
| | - Tomokazu Hirabayashi
- Discovery Research, Mochida Pharmaceutical Co., LTD, 7, Yotsuya 1-Chome, Shinjuku-ku, Tokyo 160-8515, Japan
| | - Harold B Wood
- Department of Discovery Chemistry, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
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14
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Rapid development of two factor IXa inhibitors from hit to lead. Bioorg Med Chem Lett 2015; 25:2321-5. [DOI: 10.1016/j.bmcl.2015.04.025] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2015] [Revised: 03/31/2015] [Accepted: 04/08/2015] [Indexed: 11/20/2022]
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15
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Zhang T, Andre P, Bateman TJ, Chen YH, Desai K, Ellsworth K, Geissler WM, Guo L, Hruza A, Jian T, Meng D, Parker DL, Qian X, Reichert P, Sherer EC, Shu M, Smith CJ, Sonatore LM, Tschirret-Guth R, Nolting AF, Orr R, Campeau LC, Araki K, Nishimura T, Sakurada I, Wood HB. Development of a novel class of potent and selective FIXa inhibitors. Bioorg Med Chem Lett 2015; 25:4945-4949. [PMID: 25978966 DOI: 10.1016/j.bmcl.2015.04.057] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2015] [Revised: 04/14/2015] [Accepted: 04/17/2015] [Indexed: 10/23/2022]
Abstract
Using structure based drug design (SBDD), a novel class of potent coagulation Factor IXa (FIXa) inhibitors was designed and synthesized. High selectivity over FXa inhibition was achieved. Selected compounds demonstrated oral bioavailability in rat IV/PO pharmacokinetic (PK) studies. Finally, the pharmacodynamics (PD) of this class of molecules was evaluated in Thrombin Generation Assay (TGA) in Corn Trypsin Inhibitor (CTI) citrated human plasma and demonstrated characteristics of a FIXa inhibitor.
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Affiliation(s)
- Ting Zhang
- Department of Medicinal Chemistry, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA.
| | - Patrick Andre
- Department of Cardiometabolic Disease, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Thomas J Bateman
- Department of Pharmacokinetics, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Yi-Heng Chen
- Department of Medicinal Chemistry, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Kunal Desai
- Department of Cardiometabolic Disease, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Kenneth Ellsworth
- Department of Pharmacology, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Wayne M Geissler
- Department of Pharmacology, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Liangqin Guo
- Department of Medicinal Chemistry, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Alan Hruza
- Department of Structural Chemistry, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Tianying Jian
- Department of Medicinal Chemistry, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Dongfang Meng
- Department of Medicinal Chemistry, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Dann L Parker
- Department of Medicinal Chemistry, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Xiaoxia Qian
- Department of Medicinal Chemistry, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Paul Reichert
- Department of Structural Chemistry, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Edward C Sherer
- Department of Chemistry Modeling and Informatics, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Min Shu
- Department of Medicinal Chemistry, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Cameron J Smith
- Department of Medicinal Chemistry, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Lisa M Sonatore
- Department of Pharmacology, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Richard Tschirret-Guth
- Department of Pharmacokinetics, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Andrew F Nolting
- Department of Process Chemistry, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Robert Orr
- Department of Process Chemistry, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Louis-Charles Campeau
- Department of Process Chemistry, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
| | - Kazuto Araki
- Discovery Research, Mochida Pharmaceutical Co., LTD, 7, Yotsuya 1-Chome, Shinjuku-ku, Tokyo 160-8515, Japan
| | - Teruyuki Nishimura
- Discovery Research, Mochida Pharmaceutical Co., LTD, 7, Yotsuya 1-Chome, Shinjuku-ku, Tokyo 160-8515, Japan
| | - Isao Sakurada
- Discovery Research, Mochida Pharmaceutical Co., LTD, 7, Yotsuya 1-Chome, Shinjuku-ku, Tokyo 160-8515, Japan
| | - Harold B Wood
- Department of Medicinal Chemistry, Merck Research Laboratories, Merck & Co., Inc., PO Box 2000, Rahway, NJ 07065, USA
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16
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Gao JS, Tong XP, Chang YQ, He YX, Mei YD, Tan PH, Guo JL, Liao GC, Xiao GK, Chen WM, Zhou SF, Sun PH. Design and prediction of new anticoagulants as a selective Factor IXa inhibitor via three-dimensional quantitative structure-property relationships of amidinobenzothiophene derivatives. DRUG DESIGN DEVELOPMENT AND THERAPY 2015; 9:1743-59. [PMID: 25848211 PMCID: PMC4376188 DOI: 10.2147/dddt.s75282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Factor IXa (FIXa), a blood coagulation factor, is specifically inhibited at the initiation stage of the coagulation cascade, promising an excellent approach for developing selective and safe anticoagulants. Eighty-four amidinobenzothiophene antithrombotic derivatives targeting FIXa were selected to establish three-dimensional quantitative structure–activity relationship (3D-QSAR) and three-dimensional quantitative structure–selectivity relationship (3D-QSSR) models using comparative molecular field analysis and comparative similarity indices analysis methods. Internal and external cross-validation techniques were investigated as well as region focusing and bootstrapping. The satisfactory q2 values of 0.753 and 0.770, and r2 values of 0.940 and 0.965 for 3D-QSAR and 3D-QSSR, respectively, indicated that the models are available to predict both the inhibitory activity and selectivity on FIXa against Factor Xa, the activated status of Factor X. This work revealed that the steric, hydrophobic, and H-bond factors should appropriately be taken into account in future rational design, especially the modifications at the 2′-position of the benzene and the 6-position of the benzothiophene in the R group, providing helpful clues to design more active and selective FIXa inhibitors for the treatment of thrombosis. On the basis of the three-dimensional quantitative structure–property relationships, 16 new potent molecules have been designed and are predicted to be more active and selective than Compound 33, which has the best activity as reported in the literature.
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Affiliation(s)
- Jia-Suo Gao
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, People's Republic of China
| | - Xu-Peng Tong
- College of Pharmacy, China Pharmaceutical University, Nanjing, People's Republic of China
| | - Yi-Qun Chang
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, People's Republic of China
| | - Yu-Xuan He
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, People's Republic of China
| | - Yu-Dan Mei
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, People's Republic of China
| | - Pei-Hong Tan
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, People's Republic of China
| | - Jia-Liang Guo
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, People's Republic of China
| | - Guo-Chao Liao
- Department of Chemistry, Wayne State University, Detroit, Michigan, USA
| | - Gao-Keng Xiao
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, People's Republic of China
| | - Wei-Min Chen
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, People's Republic of China
| | - Shu-Feng Zhou
- College of Pharmacy, University of South Florida, Tampa, FL, USA
| | - Ping-Hua Sun
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, People's Republic of China
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17
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Xie XL, Zhu SF, Guo JX, Cai Y, Zhou QL. Enantioselective Palladium-Catalyzed Insertion of α-Aryl-α-diazoacetates into the OH Bonds of Phenols. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201309820] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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18
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Xie XL, Zhu SF, Guo JX, Cai Y, Zhou QL. Enantioselective palladium-catalyzed insertion of α-aryl-α-diazoacetates into the O-H bonds of phenols. Angew Chem Int Ed Engl 2014; 53:2978-81. [PMID: 24500845 DOI: 10.1002/anie.201309820] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Indexed: 11/09/2022]
Abstract
A palladium-catalyzed asymmetric O-H insertion reaction was developed. Palladium complexes with chiral spiro bisoxazoline ligands promoted the insertion of α-aryl-α-diazoacetates into the O-H bond of phenols with high yield and excellent enantioselectivity under mild reaction conditions. This palladium-catalyzed asymmetric O-H insertion reaction provided an efficient and highly enantioselective method for the preparation of synthetically useful optically active α-aryl-α-aryloxyacetates.
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Affiliation(s)
- Xiu-Lan Xie
- State Key Laboratory and Institute of Elemento-organic Chemistry, Nankai University, Tianjin 300071 (China) http://zhou.nankai.edu.cn; Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
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19
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Deng X, Liang JT, Mani NS. Regioselective Synthesis of 4-Nitro- or 4-Chloro-Tetrasubstituted Pyrazoles from Hydrazones and β-Halo-β-nitrostyrenes. European J Org Chem 2013. [DOI: 10.1002/ejoc.201301294] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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20
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Fun HK, Quah CK, Narayana B, Nayak PS, Sarojini BK. N-(4-Bromo-phen-yl)-2-(naphthalen-1-yl)acetamide. Acta Crystallogr Sect E Struct Rep Online 2011; 67:o2926-7. [PMID: 22219958 PMCID: PMC3247340 DOI: 10.1107/s1600536811041110] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2011] [Accepted: 10/06/2011] [Indexed: 05/31/2023]
Abstract
In the title compound, C(18)H(14)BrNO, the naphthalene ring system and the benzene ring form dihedral angles of 78.8 (2) and 19.7 (2)°, respectively, with the acetamide C-C(=O)-N plane. The naphthalene ring system forms a dihedral angle of 64.88 (19)° with the benzene ring. In the crystal, mol-ecules are linked via inter-molecular bifurcated (N,C)-H⋯O hydrogen bonds, generating an R(2) (1)(6) ring motif, forming chains along the b axis.
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Affiliation(s)
- Hoong-Kun Fun
- X-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia
| | - Ching Kheng Quah
- X-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia
| | - B. Narayana
- Department of Studies in Chemistry, Mangalore University, Mangalagangotri 574 199, Mangalore, India
| | - Prakash S. Nayak
- Department of Studies in Chemistry, Mangalore University, Mangalagangotri 574 199, Mangalore, India
| | - B. K. Sarojini
- Department of Chemistry, P. A. College of Engineering, Nadupadavu, Montepadavu, PO, Mangalore 574 153, India
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21
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Hao M, Li Y, Zhang SW, Yang W. Investigation on the binding mode of benzothiophene analogues as potent factor IXa (FIXa) inhibitors in thrombosis by CoMFA, docking and molecular dynamic studies. J Enzyme Inhib Med Chem 2011; 26:792-804. [DOI: 10.3109/14756366.2011.554414] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Ming Hao
- School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning, China
| | - Yan Li
- School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning, China
| | - Shu-Wei Zhang
- School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning, China
| | - Wei Yang
- Center of Bioinformatics, Northwest A&F University, Yangling, Shaanxi, China
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22
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Li HM, Wu JL. N-Benzyl-2-(2-bromo-phen-yl)-2-(2-nitro-phen-oxy)acetamide. Acta Crystallogr Sect E Struct Rep Online 2010; 66:o1274. [PMID: 21579375 PMCID: PMC2979402 DOI: 10.1107/s1600536810014996] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2010] [Accepted: 04/23/2010] [Indexed: 11/10/2022]
Abstract
The title compound, C21H17BrN2O4, a 2-phenoxy-2-phenylacetamide derivative, exhibits a stereogenic center but crystallizes as a racemate as indicated by the centrosymmetric space group. In the molecular structure, the nitro-substituted benzene ring is coplanar [dihedral angle = 12.9 (1)°] with the plane formed by H—N—C(=O)—C=O due to intramolecular N—H⋯O hydrogen-bond interactions.
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Affiliation(s)
- Huo Ming Li
- Laboratory of Asymmetric Catalysis and Synthesis, Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, People's Republic of China
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