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Jackson JJ, Siegmund AC, Bai WJ, Reed AB, Birkholz AB, Campuzano IDG, Créquer-Grandhomme A, Hu R, Modak RV, Sudom A, Javier N, Sanders C, Lo MC, Xie F, Cee VJ, Manzanillo P, Allen JG. Imidazolone as an Amide Bioisostere in the Development of β-1,3- N-Acetylglucosaminyltransferase 2 (B3GNT2) Inhibitors. J Med Chem 2023; 66:16120-16140. [PMID: 37988652 DOI: 10.1021/acs.jmedchem.3c01517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2023]
Abstract
B3GNT2 is responsible for elongation of cell surface long-chain polylactosamine, which influences the regulation of the immune response, making it an attractive target for immunomodulation. In the development of amide containing B3GNT2 inhibitors guided by structure-based drug design, imidazolones were found to successfully serve as amide bioisosteres. This novel imidazolone isosteric strategy alleviated torsional strain of the amide bond on binding to B3GNT2 and improved potency, isoform selectivity, as well as certain physicochemical and pharmacokinetic properties. Herein, we present the synthesis, SAR, X-ray cocrystal structures, and in vivo PK properties of imidazol-4-ones in the context of B3GNT2 inhibition.
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Affiliation(s)
- Jeffrey J Jackson
- Small Molecule Therapeutic Discovery, Amgen Research, Amgen Inc., One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Aaron C Siegmund
- Small Molecule Therapeutic Discovery, Amgen Research, Amgen Inc., One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Wen-Ju Bai
- Small Molecule Therapeutic Discovery, Amgen Research, Amgen Inc., One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Anthony B Reed
- Small Molecule Therapeutic Discovery, Amgen Research, Amgen Inc., One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Adam B Birkholz
- Center for Research Acceleration by Digital Innovation, Amgen Research, Amgen Inc., One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Iain D G Campuzano
- Center for Research Acceleration by Digital Innovation, Amgen Research, Amgen Inc., One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Amandine Créquer-Grandhomme
- Inflammation, Amgen Research, Amgen Inc., 750 Gateway Blvd, Ste 100, South San Francisco, California 94080, United States
| | - Ruozhen Hu
- Inflammation, Amgen Research, Amgen Inc., 750 Gateway Blvd, Ste 100, South San Francisco, California 94080, United States
| | - Rucha V Modak
- Inflammation, Amgen Research, Amgen Inc., 750 Gateway Blvd, Ste 100, South San Francisco, California 94080, United States
| | - Athena Sudom
- Small Molecule Therapeutic Discovery, Amgen Research, Amgen Inc., One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Noelle Javier
- Lead Discovery & Characterization, Amgen Research, Amgen Inc., 750 Gateway Blvd, Ste 100, South San Francisco, California 94080, United States
| | - Christiana Sanders
- Lead Discovery & Characterization, Amgen Research, Amgen Inc., One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Mei-Chu Lo
- Lead Discovery & Characterization, Amgen Research, Amgen Inc., 750 Gateway Blvd, Ste 100, South San Francisco, California 94080, United States
| | - Fang Xie
- Pharmacokinetics & Drug Metabolism, Amgen Research, Amgen Inc., 750 Gateway Blvd, Ste 100, South San Francisco, California 94080, United States
| | - Victor J Cee
- Small Molecule Therapeutic Discovery, Amgen Research, Amgen Inc., One Amgen Center Drive, Thousand Oaks, California 91320, United States
| | - Paolo Manzanillo
- Inflammation, Amgen Research, Amgen Inc., 750 Gateway Blvd, Ste 100, South San Francisco, California 94080, United States
| | - John G Allen
- Small Molecule Therapeutic Discovery, Amgen Research, Amgen Inc., One Amgen Center Drive, Thousand Oaks, California 91320, United States
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Pyrazole Scaffold Synthesis, Functionalization, and Applications in Alzheimer's Disease and Parkinson's Disease Treatment (2011-2020). Molecules 2021; 26:molecules26051202. [PMID: 33668128 PMCID: PMC7956461 DOI: 10.3390/molecules26051202] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 02/20/2021] [Accepted: 02/22/2021] [Indexed: 11/17/2022] Open
Abstract
The remarkable prevalence of pyrazole scaffolds in a versatile array of bioactive molecules ranging from apixaban, an anticoagulant used to treat and prevent blood clots and stroke, to bixafen, a pyrazole-carboxamide fungicide used to control diseases of rapeseed and cereal plants, has encouraged both medicinal and organic chemists to explore new methods in developing pyrazole-containing compounds for different applications. Although numerous synthetic strategies have been developed in the last 10 years, there has not been a comprehensive overview of synthesis and the implication of recent advances for treating neurodegenerative disease. This review first presents the advances in pyrazole scaffold synthesis and their functionalization that have been published during the last decade (2011-2020). We then narrow the focus to the application of these strategies in the development of therapeutics for neurodegenerative diseases, particularly for Alzheimer's disease (AD) and Parkinson's disease (PD).
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Kumari S, Carmona AV, Tiwari AK, Trippier PC. Amide Bond Bioisosteres: Strategies, Synthesis, and Successes. J Med Chem 2020; 63:12290-12358. [PMID: 32686940 DOI: 10.1021/acs.jmedchem.0c00530] [Citation(s) in RCA: 215] [Impact Index Per Article: 53.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The amide functional group plays a key role in the composition of biomolecules, including many clinically approved drugs. Bioisosterism is widely employed in the rational modification of lead compounds, being used to increase potency, enhance selectivity, improve pharmacokinetic properties, eliminate toxicity, and acquire novel chemical space to secure intellectual property. The introduction of a bioisostere leads to structural changes in molecular size, shape, electronic distribution, polarity, pKa, dipole or polarizability, which can be either favorable or detrimental to biological activity. This approach has opened up new avenues in drug design and development resulting in more efficient drug candidates introduced onto the market as well as in the clinical pipeline. Herein, we review the strategic decisions in selecting an amide bioisostere (the why), synthetic routes to each (the how), and success stories of each bioisostere (the implementation) to provide a comprehensive overview of this important toolbox for medicinal chemists.
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Affiliation(s)
- Shikha Kumari
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Angelica V Carmona
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Amit K Tiwari
- Department of Pharmacology and Experimental Therapeutics, College of Pharmacy and Pharmaceutical Sciences, The University of Toledo, Toledo, Ohio 43614, United States
| | - Paul C Trippier
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States.,Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States.,UNMC Center for Drug Discovery, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
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Zheng J, Zhang X, Zhen X. Development of Adenosine A 2A Receptor Antagonists for the Treatment of Parkinson's Disease: A Recent Update and Challenge. ACS Chem Neurosci 2019; 10:783-791. [PMID: 30199223 DOI: 10.1021/acschemneuro.8b00313] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Parkinson's disease (PD) is a neurodegenerative disease with significant unmet medical needs. The current dopamine-centered treatments aim to restore motor functions of patients without slowing the disease progression. Long-term usage of these drugs is associated with diminished efficacy, motor fluctuation, and dyskinesia. Furthermore, the nonmotor features associated with PD such as sleep disorder, pain, and psychiatric symptoms are poorly addressed by the dopaminergic treatments. Adenosine receptor A2A antagonists have emerged as potential treatment for PD in the past decade. Here we summarize the recent work (2015-2018) on adenosine receptor A2A antagonists and discuss the challenge and opportunity for the treatment of PD.
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Affiliation(s)
- Jiyue Zheng
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Su Zhou, Jiangsu 215021, P. R. China
| | - Xiaohu Zhang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Su Zhou, Jiangsu 215021, P. R. China
| | - Xuechu Zhen
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Su Zhou, Jiangsu 215021, P. R. China
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Abstract
AIM The similarity in the biological function of the bioisosteric pair, carboxyl and sulfonamide functional groups, is studied using the quantitative tool, average electron density of the bioisosteric moiety in drug molecules and the qualitative tool, electrostatic potential. Results/methodology: Five different capping groups (methyl, phenyl, chlorine, hydrogen and amine) were considered to investigate the effect of the environment on the properties of the bioisosteres. The molecules were considered in their neutral and anionic forms to account for the change in pH depending on the medium of the drug-receptor interactions. CONCLUSION The new developed approach, average electron density, is not only advantageous as a qualitative descriptor, it is also more consistent compared with the conventionally accepted method, electrostatic potential, especially for the anions.
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Tian S, Wang X, Li L, Zhang X, Li Y, Zhu F, Hou T, Zhen X. Discovery of Novel and Selective Adenosine A 2A Receptor Antagonists for Treating Parkinson's Disease through Comparative Structure-Based Virtual Screening. J Chem Inf Model 2017; 57:1474-1487. [PMID: 28463561 DOI: 10.1021/acs.jcim.7b00188] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Among non-dopaminergic strategies for combating Parkinson's disease (PD), antagonism of the A2A adenosine receptor (AR) has emerged to show great potential. In this study, on the basis of two crystal structures of the A2A AR with the best capability to distinguish known antagonists from decoys, docking-based virtual screening (VS) was conducted to identify novel A2A AR antagonists. A total of 63 structurally diverse compounds identified by VS were submitted to experimental testing, and 11 of them exhibited substantial activity against the A2A AR (Ki < 10 μM), including two compounds with Ki below 1 μM (compound 43, 0.42 μM; compound 51, 0.27 μM) and good A2A/A1 selectivity (fold < 0.1). Compounds 43 and 51 demonstrated antagonistic activity according to the results of cAMP measurements (cAMP IC50 = 1.67 and 1.80 μM, respectively) and showed good efficacy in the haloperidol-induced catalepsy (HIC) rat model for PD at doses of up to 30 mg/kg. Further lead optimization based on a substructure searching strategy led to the discovery of compound 84 as an excellent A2A AR antagonist (A2A Ki = 54 nM, A2A/A1 fold < 0.1, cAMP IC50 = 0.3 μM) that exhibited significant improvement in anti-PD efficacy in the HIC rat model.
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Affiliation(s)
- Sheng Tian
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University , Suzhou, Jiangsu 215123, China
| | - Xu Wang
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University , Suzhou, Jiangsu 215123, China
| | - Linlang Li
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University , Suzhou, Jiangsu 215123, China
| | - Xiaohu Zhang
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University , Suzhou, Jiangsu 215123, China
| | - Youyong Li
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University , Suzhou, Jiangsu 215123, China
| | - Feng Zhu
- College of Pharmaceutical Sciences, Zhejiang University , Hangzhou, Zhejiang 310058, China
| | - Tingjun Hou
- College of Pharmaceutical Sciences, Zhejiang University , Hangzhou, Zhejiang 310058, China
| | - Xuechu Zhen
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University , Suzhou, Jiangsu 215123, China
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Yang Z, Li L, Zheng J, Ma H, Tian S, Li J, Zhang H, Zhen X, Zhang X. Identification of a New Series of Potent Adenosine A 2A Receptor Antagonists Based on 4-Amino-5-carbonitrile Pyrimidine Template for the Treatment of Parkinson's Disease. ACS Chem Neurosci 2016; 7:1575-1584. [PMID: 27569066 DOI: 10.1021/acschemneuro.6b00218] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Adenosine receptor A2A antagonists have emerged as potential treatment for Parkinson's disease in the past decade. We have recently reported a series of adenosine receptor antagonists using heterocycles as bioisosteres for a potentially unstable acetamide. These compounds, while showing excellent potency and ligand efficiency, suffered from moderate cytochrome P450 inhibition and high clearance. Here we report a new series of adenosine receptor A2A antagonists based on a 4-amino-5-carbonitrile pyrimidine template. Compounds from this new template exhibit excellent potency and ligand efficiency with low cytochrome P450 inhibition. Although the clearance remains moderate to high, the leading compound, when dosed orally as low as 3 mg/kg, demonstrated excellent efficacy in the haloperidol induced catalepsy rat model for Parkinson's disease.
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Affiliation(s)
- Zhaohui Yang
- Jiangsu Key Laboratory of
Translational Research and Therapy for Neuro-Psychiatric-Diseases
and College of Pharmaceutical Sciences, Soochow University, Su Zhou, Jiangsu 215021, P. R. China
| | - Linlang Li
- Jiangsu Key Laboratory of
Translational Research and Therapy for Neuro-Psychiatric-Diseases
and College of Pharmaceutical Sciences, Soochow University, Su Zhou, Jiangsu 215021, P. R. China
| | - Jiyue Zheng
- Jiangsu Key Laboratory of
Translational Research and Therapy for Neuro-Psychiatric-Diseases
and College of Pharmaceutical Sciences, Soochow University, Su Zhou, Jiangsu 215021, P. R. China
| | - Haikuo Ma
- Jiangsu Key Laboratory of
Translational Research and Therapy for Neuro-Psychiatric-Diseases
and College of Pharmaceutical Sciences, Soochow University, Su Zhou, Jiangsu 215021, P. R. China
| | - Sheng Tian
- Jiangsu Key Laboratory of
Translational Research and Therapy for Neuro-Psychiatric-Diseases
and College of Pharmaceutical Sciences, Soochow University, Su Zhou, Jiangsu 215021, P. R. China
| | - Jiajun Li
- Jiangsu Key Laboratory of
Translational Research and Therapy for Neuro-Psychiatric-Diseases
and College of Pharmaceutical Sciences, Soochow University, Su Zhou, Jiangsu 215021, P. R. China
| | - Hongjian Zhang
- Jiangsu Key Laboratory of
Translational Research and Therapy for Neuro-Psychiatric-Diseases
and College of Pharmaceutical Sciences, Soochow University, Su Zhou, Jiangsu 215021, P. R. China
| | - Xuechu Zhen
- Jiangsu Key Laboratory of
Translational Research and Therapy for Neuro-Psychiatric-Diseases
and College of Pharmaceutical Sciences, Soochow University, Su Zhou, Jiangsu 215021, P. R. China
| | - Xiaohu Zhang
- Jiangsu Key Laboratory of
Translational Research and Therapy for Neuro-Psychiatric-Diseases
and College of Pharmaceutical Sciences, Soochow University, Su Zhou, Jiangsu 215021, P. R. China
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8
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Electrostatic potentials and average electron densities of bioisosteres in methylsquarate and acetic acid. Future Med Chem 2016; 8:361-71. [DOI: 10.4155/fmc.16.2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background: The bioisosterism in −CO2H and −C4HO3 is exploited using the quantum theory of atoms in molecules and molecular electrostatic potentials (ESP). Results & discussion: Bioisosteres in methylsquarate and acetic acid, in the neutral/anionic forms, have average electron densities that differ by less than 2% (i.e., ∼0.01 atomic units) while irrespective of the capping group. The topography of the ESP reveals similarities in the case of the neutral species but not in the anionic forms. Conclusion: The nonclassical bioisosteres in methylsquarate and acetic acid have average electron densities that are similar and relatively insensitive to the ionization state (neutral or anionic) or its studied capping group (H, CH3, Cl or phenyl). The ESP reveals similarities in the topography of neutral molecules.
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Preti D, Baraldi PG, Moorman AR, Borea PA, Varani K. History and perspectives of A2A adenosine receptor antagonists as potential therapeutic agents. Med Res Rev 2015; 35:790-848. [PMID: 25821194 DOI: 10.1002/med.21344] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Growing evidence emphasizes that the purine nucleoside adenosine plays an active role as a local regulator in different pathologies. Adenosine is a ubiquitous nucleoside involved in various physiological and pathological functions by stimulating A1 , A2A , A2B , and A3 adenosine receptors (ARs). At the present time, the role of A2A ARs is well known in physiological conditions and in a variety of pathologies, including inflammatory tissue damage and neurodegenerative disorders. In particular, the use of selective A2A antagonists has been reported to be potentially useful in the treatment of Parkinson's disease (PD). In this review, A2A AR signal transduction pathways, together with an analysis of the structure-activity relationships of A2A antagonists, and their corresponding pharmacological roles and therapeutic potential have been presented. The initial results from an emerging polypharmacological approach are also analyzed. This approach is based on the optimization of the affinity and/or functional activity of the examined compounds toward multiple targets, such as A1 /A2A ARs and monoamine oxidase-B (MAO-B), both closely implicated in the pathogenesis of PD.
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Affiliation(s)
- Delia Preti
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, 44121, Ferrara, Italy
| | - Pier Giovanni Baraldi
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, 44121, Ferrara, Italy
| | | | - Pier Andrea Borea
- Section of Pharmacology, Department of Medical Science, University of Ferrara, 44121, Ferrara, Italy
| | - Katia Varani
- Section of Pharmacology, Department of Medical Science, University of Ferrara, 44121, Ferrara, Italy
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Zheng J, Yang Z, Li X, Li L, Ma H, Wang M, Zhang H, Zhen X, Zhang X. Optimization of 6-heterocyclic-2-(1H-pyrazol-1-yl)-N-(pyridin-2-yl)pyrimidin-4-amine as potent adenosine A2A receptor antagonists for the treatment of Parkinson's disease. ACS Chem Neurosci 2014; 5:674-82. [PMID: 24922583 DOI: 10.1021/cn5000716] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Parkinson's disease is a neurodegenerative disease characterized by the motor symptoms of bradykinesia, tremor, and rigidity. Current therapies are based mainly on dopaminergic replacement strategies by administration of either dopamine agonists or dopamine precursor levodopa (L-Dopa). These treatments provide symptomatic relief without slowing or stopping the disease progression, and long-term usage of these drugs is associated with diminished efficacy, motor fluctuation, and dyskinisia. Unfortunately, there had been few novel treatments developed in the past decades. Among nondopaminergic strategies for the treatment of Parkinson's disease, antagonism of the adenosine A2A receptor has emerged to show great potential. Here we report the optimization of a new chemical scaffold, which achieved exceptional receptor binding affinity and ligand efficiency against adenosine A2A receptor. The leading compounds demonstrated excellent efficacy in the haloperidol induced catalepsy model for Parkinson's disease.
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Affiliation(s)
- Jiyue Zheng
- Jiangsu Key Laboratory of
Translational Research and Therapy for Neuro-Psycho-Diseases and College
of Pharmaceutical Sciences, Soochow University, Su Zhou, Jiangsu 215021, P. R. China
| | - Zhaohui Yang
- Jiangsu Key Laboratory of
Translational Research and Therapy for Neuro-Psycho-Diseases and College
of Pharmaceutical Sciences, Soochow University, Su Zhou, Jiangsu 215021, P. R. China
| | - Xuan Li
- Jiangsu Key Laboratory of
Translational Research and Therapy for Neuro-Psycho-Diseases and College
of Pharmaceutical Sciences, Soochow University, Su Zhou, Jiangsu 215021, P. R. China
| | - Linlang Li
- Jiangsu Key Laboratory of
Translational Research and Therapy for Neuro-Psycho-Diseases and College
of Pharmaceutical Sciences, Soochow University, Su Zhou, Jiangsu 215021, P. R. China
| | - Haikuo Ma
- Jiangsu Key Laboratory of
Translational Research and Therapy for Neuro-Psycho-Diseases and College
of Pharmaceutical Sciences, Soochow University, Su Zhou, Jiangsu 215021, P. R. China
| | - Meiyu Wang
- Jiangsu Key Laboratory of
Translational Research and Therapy for Neuro-Psycho-Diseases and College
of Pharmaceutical Sciences, Soochow University, Su Zhou, Jiangsu 215021, P. R. China
| | - Hongjian Zhang
- Jiangsu Key Laboratory of
Translational Research and Therapy for Neuro-Psycho-Diseases and College
of Pharmaceutical Sciences, Soochow University, Su Zhou, Jiangsu 215021, P. R. China
| | - Xuechu Zhen
- Jiangsu Key Laboratory of
Translational Research and Therapy for Neuro-Psycho-Diseases and College
of Pharmaceutical Sciences, Soochow University, Su Zhou, Jiangsu 215021, P. R. China
| | - Xiaohu Zhang
- Jiangsu Key Laboratory of
Translational Research and Therapy for Neuro-Psycho-Diseases and College
of Pharmaceutical Sciences, Soochow University, Su Zhou, Jiangsu 215021, P. R. China
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