1
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Zaitsev KV, Veshchitsky GA, Oprunenko YF, Kharcheva AV, Moiseeva AA, Gloriozov IP, Lermontova EK. 1,2-Bis(triazolyl)tetraphenyldigermanes: Synthesis, Structure and Properties. Chem Asian J 2023:e202300753. [PMID: 37886881 DOI: 10.1002/asia.202300753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 10/26/2023] [Accepted: 10/27/2023] [Indexed: 10/28/2023]
Abstract
Using the [3+2] cycloaddition reaction of [HC≡C-GePh2 -]2 (1) and a number of RCH2 N3 , this work described the synthesis of a series of novel heterocyclic digermanes, bitriazoles [1,4-C2 HN3 (CH2 R)GePh2 -]2 , 2-12 (R=Ph, p-Tol, p-C6 H4 NMe2 , p-C6 H4 OMe, p-C6 H4 Br, m-C6 H4 NO2 , 2-Naphth, CH2 -p-OC6 H4 CHO, CH2 -p-OC6 H4 COOMe, CH2 P(O)(OEt)2 , COOEt), difficult to produce by other methods. The structural peculiarities of these compounds were studied in detail by NMR spectroscopy and by XRD analysis (for 6, 9 and 10). The properties of 1-12 were studied by UV/vis and luminescence emission spectroscopy, electrochemistry and DFT calculations, indicating an effective conjugation in their molecules.
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Affiliation(s)
- Kirill V Zaitsev
- Department of Chemistry, M.V. Lomonosov Moscow State University, Leninskie Gory 1, 3, 119991, Moscow, Russia
| | - Gleb A Veshchitsky
- Department of Chemistry, M.V. Lomonosov Moscow State University, Leninskie Gory 1, 3, 119991, Moscow, Russia
| | - Yuri F Oprunenko
- Department of Chemistry, M.V. Lomonosov Moscow State University, Leninskie Gory 1, 3, 119991, Moscow, Russia
| | - Anastasia V Kharcheva
- Department of Physics, M.V. Lomonosov Moscow State University, Leninskie Gory 1, 2, 119991, Moscow, Russia
| | - Anna A Moiseeva
- Department of Chemistry, M.V. Lomonosov Moscow State University, Leninskie Gory 1, 3, 119991, Moscow, Russia
| | - Igor P Gloriozov
- Department of Chemistry, M.V. Lomonosov Moscow State University, Leninskie Gory 1, 3, 119991, Moscow, Russia
| | - Elmira Kh Lermontova
- N.S. Kurnakov General and Inorganic Chemistry Institute, Russian Academy of Sciences, Leninskii prospect, 31, 119991, Moscow, Russia
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2
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Li Y, Wang W, Wang J, Cheng Q, Huang W, Li K, Lan M, Wang B, Song X. Construction of Rhodamine-Based Conjugated Polymer Sensing Platform for Ratiometric Detection of ATP. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c02081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Yuyan Li
- College of Chemistry & Chemical Engineering, Central South University, Changsha, Hunan 410083, China
| | - Weiling Wang
- College of Chemistry & Chemical Engineering, Central South University, Changsha, Hunan 410083, China
| | - Jingpei Wang
- College of Chemistry & Chemical Engineering, Central South University, Changsha, Hunan 410083, China
| | - Qiang Cheng
- College of Chemistry & Chemical Engineering, Central South University, Changsha, Hunan 410083, China
| | - Wei Huang
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Ke Li
- College of Chemistry & Chemical Engineering, Central South University, Changsha, Hunan 410083, China
| | - Minhuan Lan
- College of Chemistry & Chemical Engineering, Central South University, Changsha, Hunan 410083, China
| | - Benhua Wang
- College of Chemistry & Chemical Engineering, Central South University, Changsha, Hunan 410083, China
| | - Xiangzhi Song
- College of Chemistry & Chemical Engineering, Central South University, Changsha, Hunan 410083, China
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3
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Foroumadi R, Baeeri M, Asgarian S, Emamgholipour Z, Goli F, Firoozpour L, Keykhaei M, Gholami M, Dehpour AR, Abdollahi M, Foroumadi A. Antidiabetic and neuroprotective effects of a novel repaglinide analog. J Biochem Mol Toxicol 2022; 36:e23125. [PMID: 35702883 DOI: 10.1002/jbt.23125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 04/24/2022] [Accepted: 05/28/2022] [Indexed: 11/11/2022]
Abstract
Repaglinide (RPG) is an oral insulin secretagogue used in the treatment of diabetes. In this study, a new RPG analog was synthesized. Its antidiabetic and neuroprotective effects on dorsal root ganglions (DRG) in streptozotocin (STZ)-induced diabetic rats were examined compared to RPG. To assess the effects of 2-methoxy-4-(2-((3-methyl-1-(2-(piperidin-1-yl)phenyl)butyl)amino)-2-oxoethoxy)benzoic acid (OXR), the impact of OXR on oxidative stress biomarkers, motor function, and the expression of the glutamate dehydrogenase 1 (GLUD1), SLC2A2/glucose transporter 2 (GLUT2), and glucokinase (GCK) genes in STZ-induced diabetic rats were assessed. DRGs were examined histologically using hemotoxylin and eosin staining. Molecular docking was used to investigate the interactions between OXR and the binding site of RPG, the ATP-sensitive potassium (KATP) channel. Following 5 weeks of treatment, OXR significantly increased the level of total antioxidant power, decreased reactive oxygen species, and lipid peroxidation in the DRGs of diabetic rats. OXR restored STZ-induced pathophysiological damages in DRG tissues. Administration of OXR improved motor function of rats with diabetic neuropathy. Administration of 0.5 mg/kg OXR reduced blood glucose while promoting insulin, mainly through upregulation of messenger RNA expression of GLUD1, GLUT2, and GCK in the pancreas. Molecular docking revealed a favorable binding mode of OXR to the KATP channel. In conclusion, OXR has neuroprotective effects in diabetic rats by lowering oxidative stress, lowering blood glucose, and stimulating insulin secretion. We report that 0.5 mg/kg OXR administration was the most effective concentration of the compound in this study. OXR may be a promising target for further research on neuroprotective antidiabetic molecules.
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Affiliation(s)
- Roham Foroumadi
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.,Toxicology and Diseases Group, Pharmaceutical Sciences Research Center (PSRC), Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Maryam Baeeri
- Toxicology and Diseases Group, Pharmaceutical Sciences Research Center (PSRC), Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Sara Asgarian
- Student Research Committee, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Zahra Emamgholipour
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Fereshteh Goli
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Loghman Firoozpour
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Keykhaei
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahdi Gholami
- Toxicology and Diseases Group, Pharmaceutical Sciences Research Center (PSRC), Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Ahmad R Dehpour
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Abdollahi
- Toxicology and Diseases Group, Pharmaceutical Sciences Research Center (PSRC), Tehran University of Medical Sciences (TUMS), Tehran, Iran.,Department of Toxicology and Pharmacology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Foroumadi
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.,Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
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4
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Zhang J, Jiang M, Zhao H, Han L, Jin Y, Chen W, Wang J, Zhang Z, Peng C. Synthesis of Paeonol-Ozagrel Conjugate: Structure Characterization and In Vivo Anti-Ischemic Stroke potential. Front Pharmacol 2021; 11:608221. [PMID: 33597878 PMCID: PMC7883289 DOI: 10.3389/fphar.2020.608221] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Accepted: 12/11/2020] [Indexed: 12/16/2022] Open
Abstract
Ischemic stroke is a common neurological disease that can lead to mortality and disability. The current curative effect remains unsatisfactory because drug accumulation in the diseased areas is insufficient as a result of the unique blood–brain barrier. Therefore, much attention has been paid to develop a novel therapeutic compound, paeonol-ozagrel conjugate (POC), for ischemic stroke. Then, POC was successfully synthesized by conjugating of paeonol and ozagrel as mutual prodrug. A series of in vitro characterizations and evaluations, including high - resolution mass spectroscopy, nuclear magnetic resonance spectroscopy, partition coefficient, and assessment of cytotoxicity against PC12 cells, were performed. Pharmacokinetic study demonstrated POC is eliminated quickly (t1/2 = 53.46 ± 19.64 min), which supported a short dosing interval. The neurological score, infarct volume, histopathological changes, oxidative stress, inflammatory cytokines levels, and TXA2 levels also were evaluated in vivo in middle cerebral artery occlusion (MCAO) rats. All results showed that POC had a significant curative and therapeutic effect on ischemic stroke, as evaluated by the middle cerebral artery occlusion. Overall, POC can be expected to become a new drug candidate for the treatment of ischemic stroke.
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Affiliation(s)
- Jing Zhang
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, China.,Institute of Pharmaceutics, Anhui Academy of Chinese Medicine, Hefei, China.,Anhui Province Key Laboratory of Pharmaceutical Preparation Technology and Application, Hefei, China
| | - Miaomiao Jiang
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, China.,Institute of Pharmaceutics, Anhui Academy of Chinese Medicine, Hefei, China.,Department of Pharmacy, the Fourth Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Hui Zhao
- Department of Pharmacy, the Fourth Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Lan Han
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, China.,Institute of Pharmaceutics, Anhui Academy of Chinese Medicine, Hefei, China.,Anhui Province Key Laboratory of Pharmaceutical Preparation Technology and Application, Hefei, China
| | - Yu Jin
- Chaohu Jinchen Pharmacy Co., Ltd., Shanghai Haihong Industrial Group, Chaohu, China
| | - Weidong Chen
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, China.,Institute of Pharmaceutics, Anhui Academy of Chinese Medicine, Hefei, China.,Anhui Province Key Laboratory of Pharmaceutical Preparation Technology and Application, Hefei, China
| | - Jianqing Wang
- Department of Pharmacy, the Fourth Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Ziyu Zhang
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, China.,Institute of Pharmaceutics, Anhui Academy of Chinese Medicine, Hefei, China
| | - Can Peng
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, China.,Institute of Pharmaceutics, Anhui Academy of Chinese Medicine, Hefei, China.,Anhui Province Key Laboratory of Pharmaceutical Preparation Technology and Application, Hefei, China
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5
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Zhong Y, Gao Y, Xu Y, Qi C, Wu B. Synthesis of Novel Aryloxyethylamine Derivatives and Evaluation of Their in Vitro and in Vivo Neuroprotective Activities. Chem Biodivers 2020; 17:e2000431. [PMID: 32583520 DOI: 10.1002/cbdv.202000431] [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: 06/01/2020] [Accepted: 06/24/2020] [Indexed: 01/24/2023]
Abstract
A series of aryloxyethylamine derivatives were designed, synthesized and evaluated for their biological activity. Their structures were confirmed by 1 H-NMR, 13 C-NMR, FT-IR and HR-ESI-MS. The preliminary screening of neuroprotection of compounds in vitro was detected by MTT, and the anti-ischemic activity in vivo was tested using bilateral common carotid artery occlusion in mice. Most of these compounds showed potential neuroprotective effects against the glutamate-induced cell death in differentiated rat pheochromocytoma cells (PC12 cells), especially for (4-fluorophenyl){1-[2-(4-methoxyphenoxy)ethyl]piperidin-4-yl}methanone, {1-[2-(4-methoxyphenoxy)ethyl]piperidin-4-yl}(4-methoxyphenyl)methanone, (4-bromophenyl){1-[2-(4-methoxyphenoxy)ethyl]piperidin-4-yl}methanone, {1-[2-(4-chlorophenoxy)ethyl]piperidin-4-yl}(4-chlorophenyl)methanone, (4-chlorophenyl)(1-{2-[(naphthalen-2-yl)oxy]ethyl}piperidin-4-yl)methanone, (4-chlorophenyl){1-[2-(4-methoxyphenoxy)ethyl]piperidin-4-yl}methanone and {1-[2-(4-bromophenoxy)ethyl]piperidin-4-yl}(4-chlorophenyl)methanone, which exhibited potent protection of PC12 cells at three doses (0.1, 1.0, 10 μM). Compounds (4-fluorophenyl){1-[2-(4-methoxyphenoxy)ethyl]piperidin-4-yl}methanone, (4-fluorophenyl){1-[2-(naphthalen-2-yloxy)ethyl]piperidin-4-yl}methanone, {1-[2-(4-methoxyphenoxy)ethyl]piperidin-4-yl}(4-methoxyphenyl)methanone and {1-[2-(4-chlorophenoxy)ethyl]piperidin-4-yl}(4-chlorophenyl)methanone possessed the significant prolongation of the survival time of mice subjected to acute cerebral ischemia and decreased the mortality rate at all five doses tested (200, 100, 50, 25, 12.5 mg/kg) and had significant neuroprotective activity. In addition, (4-fluorophenyl){1-[2-(4-methoxyphenoxy)ethyl]piperidin-4-yl}methanone, {1-[2-(4-methoxyphenoxy)ethyl]piperidin-4-yl}(4-methoxyphenyl)methanone and {1-[2-(4-chlorophenoxy)ethyl]piperidin-4-yl}(4-chlorophenyl)methanone possessed outstanding neuroprotection in vitro and in vivo. These compounds can be used as a promising neuroprotective agents for future development of new anti-ischemic stroke agents. Basic structure-activity relationships are also presented.
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Affiliation(s)
- Yan Zhong
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, P. R. China
| | - Yarong Gao
- School of Pharmacy, Nanjing Medical University, Nanjing, 211166, P. R. China
| | - Yi Xu
- School of Pharmacy, Nanjing Medical University, Nanjing, 211166, P. R. China
| | - Changyong Qi
- Animal Core Facility of Nanjing Medical University, Nanjing, 211166, P. R. China
| | - Bin Wu
- School of Pharmacy, Nanjing Medical University, Nanjing, 211166, P. R. China
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6
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Lahive CW, Kamer PCJ, Lancefield CS, Deuss PJ. An Introduction to Model Compounds of Lignin Linking Motifs; Synthesis and Selection Considerations for Reactivity Studies. CHEMSUSCHEM 2020; 13:4238-4265. [PMID: 32510817 PMCID: PMC7540175 DOI: 10.1002/cssc.202000989] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Indexed: 05/31/2023]
Abstract
The development of fundamentally new valorization strategies for lignin plays a vital role in unlocking the true potential of lignocellulosic biomass as sustainable and economically compatible renewable carbon feedstock. In particular, new catalytic modification and depolymerization strategies are required. Progress in this field, past and future, relies for a large part on the application of synthetic model compounds that reduce the complexity of working with the lignin biopolymer. This aids the development of catalytic methodologies and in-depth mechanistic studies and guides structural characterization studies in the lignin field. However, due to the volume of literature and the piecemeal publication of methodology, the choice of suitable lignin model compounds is far from straight forward, especially for those outside the field and lacking a background in organic synthesis. For example, in catalytic depolymerization studies, a balance between synthetic effort and fidelity compared to the actual lignin of interest needs to be found. In this Review, we provide a broad overview of the model compounds available to study the chemistry of the main native linking motifs typically found in lignins from woody biomass, the synthetic routes and effort required to access them, and discuss to what extent these represent actual lignin structures. This overview can aid researchers in their selection of the most suitable lignin model systems for the development of emerging lignin modification and depolymerization technologies, maximizing their chances of successfully developing novel lignin valorization strategies.
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Affiliation(s)
- Ciaran W. Lahive
- Department of Chemical Engineering (ENTEG)University of GroningenNijenborgh 49747 AGGroningenNetherlands
- School of Chemistry and Biomedical Science Research ComplexUniversity of St. Andrews and EaStCHEMNorth HaughSt. AndrewsFifeKY16 9STUnited Kingdom
| | - Paul C. J. Kamer
- School of Chemistry and Biomedical Science Research ComplexUniversity of St. Andrews and EaStCHEMNorth HaughSt. AndrewsFifeKY16 9STUnited Kingdom
- Leibniz-Institut für Katalyse e.V.Albert-Einstein-Straße 29a18059RostockGermany
| | - Christopher S. Lancefield
- School of Chemistry and Biomedical Science Research ComplexUniversity of St. Andrews and EaStCHEMNorth HaughSt. AndrewsFifeKY16 9STUnited Kingdom
| | - Peter J. Deuss
- Department of Chemical Engineering (ENTEG)University of GroningenNijenborgh 49747 AGGroningenNetherlands
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7
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Dilem Doğan Ş, Buran S, Gözde Gündüz M, Özkul C, Siva Krishna V, Sriram D. Synthesis of Disulfide-Bridged N-Phenyl-N'-(alkyl/aryl/heteroaryl)urea Derivatives and Evaluation of Their Antimicrobial Activities. Chem Biodivers 2019; 16:e1900461. [PMID: 31557406 DOI: 10.1002/cbdv.201900461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 09/26/2019] [Indexed: 11/06/2022]
Abstract
The discovery of new antimicrobial agents is extremely needed to overcome multidrug-resistant bacterial and tuberculosis infections. In the present study, eight novel substituted urea derivatives (10a-10h) containing disulfide bond were designed, synthesized and screened for their in vitro antimicrobial activities on standard strains of Gram-positive and Gram-negative bacteria as well as on Mycobacterium tuberculosis. According to the obtained results, antibacterial effects of the compounds were found to be considerably better than their antimycobacterial activities along with their weak cytotoxic effects. Molecular docking studies were performed to gain insights into the antibacterial activity mechanism of the synthesized compounds. The interactions and the orientation of compound 10a (1,1'-((disulfanediylbis(methylene))bis(2,1-phenylene))bis(3-phenylurea)) were found to be highly similar to the original ligand within the binding pocket E. faecalis β-ketoacyl acyl carrier protein synthase III (FabH). Finally, a theoretical study was established to predict the physicochemical properties of the compounds.
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Affiliation(s)
- Şengül Dilem Doğan
- Department of Basic Sciences, Faculty of Pharmacy, Erciyes University, 38039, Kayseri, Turkey
| | - Sümeyye Buran
- Department of Basic Sciences, Faculty of Pharmacy, Erciyes University, 38039, Kayseri, Turkey
| | - Miyase Gözde Gündüz
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Hacettepe University, Sıhhiye, 06100, Ankara, Turkey
| | - Ceren Özkul
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Hacettepe University, Sıhhiye, 06100, Ankara, Turkey
| | - Vagolu Siva Krishna
- Department of Pharmacy, Birla Institute of Technology and Science-Pilani, 500078, Hyderabad, India
| | - Dharmarajan Sriram
- Department of Pharmacy, Birla Institute of Technology and Science-Pilani, 500078, Hyderabad, India
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8
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Luo Y, Tang H, Li H, Zhao R, Huang Q, Liu J. Recent advances in the development of neuroprotective agents and therapeutic targets in the treatment of cerebral ischemia. Eur J Med Chem 2019; 162:132-146. [DOI: 10.1016/j.ejmech.2018.11.014] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 10/30/2018] [Accepted: 11/06/2018] [Indexed: 11/25/2022]
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9
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Triloknadh S, Venkata Rao C, Nagaraju K, Hari Krishna N, Venkata Ramaiah C, Rajendra W, Trinath D, Suneetha Y. Design, synthesis, neuroprotective, antibacterial activities and docking studies of novel thieno[2,3-d]pyrimidine-alkyne Mannich base and oxadiazole hybrids. Bioorg Med Chem Lett 2018; 28:1663-1669. [PMID: 29602681 DOI: 10.1016/j.bmcl.2018.03.030] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2017] [Revised: 03/05/2018] [Accepted: 03/12/2018] [Indexed: 01/07/2023]
Abstract
A series of thieno[2,3-d]pyrimidine alkyne Mannich base derivatives (7a-e, 8a-e) and thieno[2,3-d]pyrimidine 1,3,4-oxadiazole derivatives (9a-e, 10a-e) have been synthesized and evaluated for their neuroprotective and neurotoxicity activities where 9a, 10d displayed good neuroprotection 10.6 and 11.88 µg/mL respectively against the H2O2 induced cell death at the EC50 values and 9b, 9d showed respective toxic effects on PC12 cells at CC50 86.12 and 94.16 µg/mL. Compounds 9a, 9e, 10a and 10b showed strong antibacterial activity against two gram positive (S. aureus, B. subtilis) and two gram-negative strains (E. coli, P. aeruginosa) and showed good binding affinities with C(30) carotenoid dehydrosqualene synthase, Gyrase A and LpxC. This is the first report for the demonstration of thieno[2,3-d] pyrimidine derivatives as promising neuroprotective agents against H2O2 induced neurotoxicity on PC12 cells.
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Affiliation(s)
- Settypalli Triloknadh
- Department of Chemistry, Sri Venkateswara University, Tirupati 517502, Andhra Pradesh, India
| | - Chunduri Venkata Rao
- Department of Chemistry, Sri Venkateswara University, Tirupati 517502, Andhra Pradesh, India.
| | - Kerru Nagaraju
- Department of Chemistry, Sri Venkateswara University, Tirupati 517502, Andhra Pradesh, India
| | | | | | - Wudayagiri Rajendra
- Department of Zoology, Sri Venkateswara University, Tirupati 517502, Andhra Pradesh, India
| | - Daggupati Trinath
- Department of Zoology, Sri Venkateswara University, Tirupati 517502, Andhra Pradesh, India
| | - Yeguvapalli Suneetha
- Department of Zoology, Sri Venkateswara University, Tirupati 517502, Andhra Pradesh, India
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10
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Zhong JG, Han JP, Li XF, Xu Y, Zhong Y, Wu B. Synthesis, crystal structure, Hirshfeld surfaces analysis and anti-ischemic activity of cinnamide derivatives. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.09.110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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11
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Zhang C, Yan W, Zhao R, Xu B, Fang X, Yan M, Zhang Y, Wang P, Lei H. Design, synthesis and evaluation of new ligustrazine derivatives as potential plasma-stable neuroprotective agents. MEDCHEMCOMM 2017; 8:652-656. [PMID: 30108782 DOI: 10.1039/c7md00003k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Accepted: 02/08/2017] [Indexed: 01/08/2023]
Abstract
A series of ligustrazine-phenolic acid esters which exhibited promising neuroprotective activities have previously been reported. Nevertheless, we found that these ester compounds (like T-VA) were not stable in plasma by further in vivo studies. To investigate plasma-stable neuroprotective agents, a series of new ligustrazine derivatives were synthesized by conjoining ligustrazine and phenols with ester, ether and amide bonds. Most of the compounds exhibited higher protective effects against CoCl2-induced neurotoxicity in differentiated PC12 cells than ligustrazine. Structure-activity relationships were also briefly discussed. We found that compound 2c (2-((2-methoxy-4-(((3,5,6-trimethylpyrazin-2-yl)methoxy) methyl)phenoxy)methyl)-3,5,6-trimethylpyrazine) displayed the highest protective effect on the PC12 cells damaged by CoCl2 (EC50 = 1.07 μM). Preliminary stability investigation in rat plasma was verified in vitro and better plasma stability was observed with 2c in comparison to T-VA.
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Affiliation(s)
- Chenze Zhang
- School of Chinese Pharmacy , Beijing University of Chinese Medicine , Beijing 100102 , China . ;
| | - Wenqiang Yan
- School of Chinese Pharmacy , Beijing University of Chinese Medicine , Beijing 100102 , China . ;
| | - Rui Zhao
- School of Chinese Pharmacy , Beijing University of Chinese Medicine , Beijing 100102 , China . ;
| | - Bing Xu
- School of Chinese Pharmacy , Beijing University of Chinese Medicine , Beijing 100102 , China . ;
| | - Xiong Fang
- School of Life Sciences , Tsinghua University , Beijing 100084 , China
| | - Mengmeng Yan
- School of Chinese Pharmacy , Beijing University of Chinese Medicine , Beijing 100102 , China . ;
| | - Yuzhong Zhang
- Department of Pathology , Beijing University of Chinese Medicine , Beijing 100102 , China
| | - Penglong Wang
- School of Chinese Pharmacy , Beijing University of Chinese Medicine , Beijing 100102 , China . ;
| | - Haimin Lei
- School of Chinese Pharmacy , Beijing University of Chinese Medicine , Beijing 100102 , China . ;
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