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Hu M, Guo X, Tian Y, Li Y, Liu Y, Huang X, Chen G, Che Z. Synthesis of paeonol hydrazone derivatives and their anti-oomycete, anti-fungal, and nematicidal activities. PEST MANAGEMENT SCIENCE 2024. [PMID: 39003636 DOI: 10.1002/ps.8306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 06/20/2024] [Accepted: 06/28/2024] [Indexed: 07/15/2024]
Abstract
BACKGROUND The natural product paeonol is a rich and sustainable natural bioresource, and its derivatives have various unique biological efficacy. As is well known, Schiff bases are a class of organic compounds with a wide range of biological activities, including anti-fungal, insecticidal, anti-viral, and nematicidal. RESULTS To discover biorational natural product-based pesticides, nine intermediates (2-10), 12 sulfonylhydrazones (11a-11c, 12a-12c, 13a-13c, and 14a-14c) and 20 benzylidene hydrazones (18a-18r, 19a, and 20a) were synthesized by structural modification of paeonol, and their structures were characterized by proton nuclear magnetic resonance (1H NMR), carbon-13 (13C) NMR, and high-resolution mass spectrometry (HRMS). The stereochemical configurations of compounds 14a, 18d, and 18r were unambiguously confirmed by single-crystal X-ray diffraction. Furthermore, bioactivities of these compounds as anti-oomycete, anti-fungal, and nematicidal agents against three serious agricultural pests, Phytophthora capsici, Fusarium graminearum, and Heterodera glycines were evaluated. Among all tested compounds: (i) compound 7 exhibited promising anti-oomycete against Phytophthora capsici, with a half maximal effective concentration (EC50) value of 15.81 mg L-1; (ii) compounds 2, 7, 10, and 19a displayed promising anti-fungal against F. graminearum, with EC50 values of 12.22, 14.72, 23.39, and 33.10 mg L-1, respectively; (iii) ten compounds (12a-12c, 14c, 18g-18j, 18m, and 19a) showed significant nematicidal activity against H. glycines, with median lethal concentration (LC50) values all less than 30.00 mg L-1. Especially for compound 18g, its LC50 value is the smallest, at 12.65 mg L-1. CONCLUSION The research results indicate that introducing nitro groups at the C5 position of paeonol, or introducing halogens at both C5 and C3 positions, can significantly enhance its biological activity against Phytophthora capsici, F. graminearum, and H. glycines. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Mei Hu
- Laboratory of Pesticidal Design and Synthesis, Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, China
| | - Xiaolong Guo
- Laboratory of Pesticidal Design and Synthesis, Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, China
| | - Yuee Tian
- Laboratory of Pesticidal Design and Synthesis, Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, China
| | - Yan Li
- Laboratory of Pesticidal Design and Synthesis, Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, China
| | - Yibo Liu
- Laboratory of Pesticidal Design and Synthesis, Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, China
| | - Xiaobo Huang
- Laboratory of Pesticidal Design and Synthesis, Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, China
| | - Genqiang Chen
- Laboratory of Pesticidal Design and Synthesis, Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, China
| | - Zhiping Che
- Laboratory of Pesticidal Design and Synthesis, Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, China
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Li T, Lv M, Wen H, Xu H. Discovery of 3-Formyl- N-(un)Substituted Benzylindole Pyrimidines as an Acaricidal Agent and Their Mechanism of Action. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023. [PMID: 37910844 DOI: 10.1021/acs.jafc.3c06409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
To discover the pronounced acaricide candidate, herein, a series of 3-formyl-N-(un)substituted benzylindole pyrimidines were prepared by structural modification of indoles at the N-1 and C-3 positions via the successive Vilsmeier-Haack-Arnold (VHA), aldol condensation, and cyclization reactions. The steric structures of nine compounds were undoubtedly confirmed by X-ray single-crystallography. Against Tetranychus cinnabarinus Boisduval, compounds V-15, V-31, V-34, V-42, V-44, and V-60 exhibited promising acaricidal activity with LC50 values of 0.299-0.481 mg/mL. In particular, compound V-34 displayed 4.2 times the acaricidal activity of its precursor 6-methylindole. Scanning electron microscopy (SEM) imaging revealed that the construction of the cuticle layer of V-34-treated T. cinnabarinus was seriously destroyed. Furthermore, RNA-Seq analysis indicated that compound V-34 could regulate the homeostasis metabolism of T. cinnabarinus through arachidonic acid and linoleic acid metabolism and lysosome pathways. These results suggested that compound V-34 can be further studied as a lead acaricidal agent.
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Affiliation(s)
- Tianze Li
- College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Min Lv
- College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Houpeng Wen
- College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Hui Xu
- College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
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Li T, Lv M, Wen H, Du J, Wang Z, Zhang S, Xu H. Natural products in crop protection: thiosemicarbazone derivatives of 3-acetyl-N-benzylindoles as antifungal agents and their mechanism of action. PEST MANAGEMENT SCIENCE 2023. [PMID: 36929618 DOI: 10.1002/ps.7457] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 03/10/2023] [Accepted: 03/16/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Phytopathogenic fungi can cause a direct loss in economic value of agriculture. Especially Valsa mali Miyabe et Yamada, a devastating phytopathogenic disease especially threatening global apple production, is very difficult to control and manage. To discover new potential antifungal agents, a series of thiosemicarbazone derivatives of 3-acetyl-N-benzylindoles were prepared. Their antifungal activities were first tested against six typically phytopathogenic fungi including Curvularia lunata, Valsa mali, Alternaria alternate, Fusarium graminearum, Botrytis cinerea and Fusarium solani. Then their mechanism of action against V. mali was investigated. RESULTS Derivatives displayed potent antifungal activity against V. mali. Notably, 3-acetyl-N-benzylindole thiosemicarbazone (IV-1: EC50 : 0.59 μg mL-1 ), whose activity was comparable to that of a commercial fungicide carbendazim (EC50 : 0.33 μg mL-1 ), showed greater than 98-fold antifungal activity of the precursor indole. Moreover, compound IV-1 displayed good protective and therapeutic effects on apple Valsa canker disease. By scanning electron microscope (SEM) and RNA-Seq analysis, it was demonstrated that compound IV-1 can destroy the hyphal structure and regulate the homeostasis of metabolism of V. mali via the ergosterol biosynthesis and autophagy pathways. CONCLUSION 3-Acetyl-N-(un)substituted benzylindoles thiosemicarbazones (IV-1-IV-5) can be studied as leads for further structural modification as antifungal agents against V. mali. Particularly, these ergosterol biosynthesis and autophagy pathways can be used as target receptors for design of novel green pesticides for management of congeneric phytopathogenic fungi. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Tianze Li
- College of Plant Protection, Northwest A&F University, Yangling, China
| | - Min Lv
- College of Plant Protection, Northwest A&F University, Yangling, China
| | - Houpeng Wen
- College of Plant Protection, Northwest A&F University, Yangling, China
| | - Jiawei Du
- College of Plant Protection, Northwest A&F University, Yangling, China
| | - Zhen Wang
- College of Plant Protection, Northwest A&F University, Yangling, China
| | - Shaoyong Zhang
- Key Laboratory of Vector Biology and Pathogen Control of Zhejiang Province, College of Life Science, Huzhou University, Huzhou, China
| | - Hui Xu
- College of Plant Protection, Northwest A&F University, Yangling, China
- School of Marine Sciences, Ningbo University, Ningbo, China
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Wang Y, Guo S, Yu L, Zhang W, Wang Z, Chi YR, Wu J. Hydrazone derivatives in agrochemical discovery and development. CHINESE CHEM LETT 2023. [DOI: 10.1016/j.cclet.2023.108207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
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Wang R, Li Y, Gao J, Luan Y. WRQ-2, a gemcitabine prodrug, reverses gemcitabine resistance caused by hENT1 inhibition. Drug Discov Ther 2022; 16:286-292. [PMID: 36529509 DOI: 10.5582/ddt.2022.01077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Gemcitabine is widely used in the clinic as a first-line antitumor agent. However, intrinsic and acquired resistance hinders its wide clinical application. In this study, a gemcitabine prodrug nominated as WRQ-2 was designed and synthesized by conjugating gemcitabine with the indole-3-methanol analogue OSU-A9 through a carbamate linkage. WRQ-2 exhibited high cytotoxicity against six cancer cell lines (HeLa, A549, MDA-MB-231, HuH-7, MGC-803, and HCT-116) with IC50 values in low micromolar range. WRQ-2 reversed the resistance of HeLa cells to gemcitabine caused by hENT1 inhibition. Compared to gemcitabine, WRQ-2 induced a higher degree of DNA damage and apoptosis in the presence of hENT1 inhibitor. Our study suggests that compound WRQ-2 is a potential gemcitabine prodrug and worth of further antitumor activity investigation.
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Affiliation(s)
- Ruquan Wang
- Department of Pharmacology, School of Pharmacy, Qingdao University Qingdao Medical College, Qingdao University, Qingdao, Shandong, China
| | - Yongliang Li
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University Qingdao Medical College, Qingdao University, Qingdao, Shandong, China
| | - Jianjun Gao
- Department of Pharmacology, School of Pharmacy, Qingdao University Qingdao Medical College, Qingdao University, Qingdao, Shandong, China
| | - Yepeng Luan
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University Qingdao Medical College, Qingdao University, Qingdao, Shandong, China
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Research Progress on the Biological Activities of Metal Complexes Bearing Polycyclic Aromatic Hydrazones. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238393. [PMID: 36500482 PMCID: PMC9739244 DOI: 10.3390/molecules27238393] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 11/19/2022] [Accepted: 11/25/2022] [Indexed: 12/05/2022]
Abstract
Due to the abundant and promising biological activities of aromatic hydrazones, it is of great significance to study the biological activities of their metal complexes for the research and development of metal-based drugs. In this review, we focus on the metal complexes of polycyclic aromatic hydrazones, which still do not receive much attention, and summarize the studies related to their biological activities. Although the large number of metal complexes in phenylhydrazone prevent them all from being summarized, the significant value of polycyclic aromatic hydrocarbons themselves (such as naphthalene and anthracene) as pharmacophores are also considered. Therefore, the bioactivities of the metal complexes of naphthylhydrazone and anthrahydrazone are focused on, and the recent research progress on the metal complexes of anthrahydrazone by the authors is also included. In terms of biological activities, these complexes mainly show antibacterial and anticancer activities, along with less bioactivities. The present review demonstrates that the structural design and bioactivities of these complexes are fundamental, which also indicates a certain structure-activity relationship (SAR) in some substructural areas. However, a systematic and comprehensive conclusion of the SAR is still not available, which suggests that more attention should be paid to the bioactivities of the metal complexes of polycyclic aromatic hydrazones since their potential in structural design and biological activity remains to be explored. We hope that this review will attract more researchers to devote their interest and energy into this promising area.
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Che Z, Guo X, Li Y, Zhang S, Zhu L, He J, Sun D, Guo Y, Liu Y, Wei R, Huang X, Liu S, Chen G, Tian Y. Synthesis of paeonol ester derivatives and their insecticidal, nematicidal, and anti-oomycete activities. PEST MANAGEMENT SCIENCE 2022; 78:3442-3455. [PMID: 35567371 DOI: 10.1002/ps.6985] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 04/06/2022] [Accepted: 05/14/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Paeonol is extracted and isolated as a rich and sustainable natural bioresource from the root bark of Paeonia suffruticosa, the derivatives of which exhibit numerous biological activities. It is well known that ester compounds play a very important role in pest control, such as organophosphorus, carbamate and pyrethroid pesticides. RESULTS To discover biorational natural product-based pesticides, three series of (60) paeonol ester derivatives (7a-t, 8g,p, 9g,p, 10g-j,n-u, 11g,u, 12g,u, 13a-p, 14b,c, and 15b,c) were prepared by structural modification of paeonol, and their structures were well characterized by proton nuclear magnetic resonance (1 H-NMR), carbon-13 nuclear magnetic resonance (13 C-NMR), high-resolution mass spectrometry (HRMS), and melting point. Furthermore, we assessed the compounds as insecticidal, nematicidal, and anti-oomycete agents against three serious agricultural pests, Mythimna separata, Heterodera glycines, and Phytophthora capsici. Among all tested compounds: (i) compound 8p showed more significant insecticidal activity than toosendanin, and the final mortality rates of 8p and toosendanin against M. separata (1 mg mL-1 ) were 70.4%, and 51.9%, respectively; (ii) compound 7a exhibited more promising nematicidal activity than paeonol, and the median lethal concentration (LC50 ) values of 7a and 1 against H. glycines were 15.47 and 50.80 mg L-1 , respectively; (iii) compounds 7n and 13m displayed more significant anti-oomycete activity compared to zoxamide against Phytophthora capsici, and the median effective concentration (EC50 ) values of 7n, 13m, and zoxamide were 23.72, 24.51, and 26.87 mg L-1 , respectively; and the protective effect of the compounds against Phytophthora capsici in vivo further confirmed the effectiveness of the agents. CONCLUSION This study suggested that the introduction of a nitro at the C5 or C3 position of paeonol could improve its bioactivity against M. separata, H. glycines, and Phytophthora capsici. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Zhiping Che
- Laboratory of Pesticidal Design and Synthesis, Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, China
| | - Xiaolong Guo
- Laboratory of Pesticidal Design and Synthesis, Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, China
| | - Yuanhao Li
- Laboratory of Pesticidal Design and Synthesis, Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, China
| | - Song Zhang
- Laboratory of Pesticidal Design and Synthesis, Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, China
| | - Lina Zhu
- Laboratory of Pesticidal Design and Synthesis, Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, China
| | - Jiaxuan He
- Laboratory of Pesticidal Design and Synthesis, Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, China
| | - Di Sun
- Laboratory of Pesticidal Design and Synthesis, Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, China
| | - Yihao Guo
- Laboratory of Pesticidal Design and Synthesis, Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, China
| | - Yibo Liu
- Laboratory of Pesticidal Design and Synthesis, Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, China
| | - Ruxue Wei
- Laboratory of Pesticidal Design and Synthesis, Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, China
| | - Xiaobo Huang
- Laboratory of Pesticidal Design and Synthesis, Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, China
| | - Shengming Liu
- Laboratory of Pesticidal Design and Synthesis, Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, China
| | - Genqiang Chen
- Laboratory of Pesticidal Design and Synthesis, Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, China
| | - Yuee Tian
- Laboratory of Pesticidal Design and Synthesis, Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, China
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Dinesh V, Nagarajan R. (NH 4) 2S 2O 8-Mediated Metal-Free Decarboxylative Formylation/Acylation of α-Oxo/Ketoacids and Its Application to the Synthesis of Indole Alkaloids. J Org Chem 2022; 87:10359-10365. [PMID: 35820161 DOI: 10.1021/acs.joc.2c00552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A metal-free method for the formylation/acylation of indoles and β-carbolines with (NH4)2S2O8 via direct decarboxylative cross-coupling of α-oxo/ketoacids in moderate to good yields is described. The reaction occurs between ambient temperature and 40 °C under mild reaction conditions with commercially available starting materials. This methodology can be expanded to some biologically active indole alkaloids like pityriacitrins, eudistomins Y1 and Y3, and marinacarbolines A-D.
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Affiliation(s)
- Votarikari Dinesh
- School of Chemistry, University of Hyderabad, Hyderabad 500046, Telangana, India
| | - Rajagopal Nagarajan
- School of Chemistry, University of Hyderabad, Hyderabad 500046, Telangana, India
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Rani M, Utreja D, Sharma S. Role of Indole Derivatives in Agrochemistry: Synthesis and Future Insights. CURR ORG CHEM 2022. [DOI: 10.2174/1385272826666220426103835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Abstract:
Heterocycles constitute a wider class of organic compounds which contribute significantly in every facet of pure and applied chemistry. Indole, one of the bicyclic heterocyclic compounds containing nitrogen atom, witnessed unparalleled biological activity such as antiviral, antibacterial, anticancer, anti-depressant and antifungal activities. Different biological activities exhibited by indole derivatives provide the impulsion to explore its activity against anti-phytopathogenic microbes to save the plants from pests and disease, as food security will once again become a rigid demand. This review mainly focuses on various methods related to the synthesis of indole derivatives and its role in agriculture.
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Affiliation(s)
- Manisha Rani
- Department of Chemistry, Punjab Agricultural University, Ludhiana 141004, India
| | - Divya Utreja
- Department of Chemistry, Punjab Agricultural University, Ludhiana 141004, India
| | - Shivali Sharma
- Department of Chemistry, Punjab Agricultural University, Ludhiana 141004, India
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Bala I, Singh K, Kataria R, Sindhu M. Exploration of structural, electrostatic and photophysical behaviour of novel Ni (II), Cu (II) and Zn (II) complexes, and their utility as potent antimicrobial agents. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Indu Bala
- Department of Chemistry Kurukshetra University Kurukshetra Haryana India
| | - Kiran Singh
- Department of Chemistry Kurukshetra University Kurukshetra Haryana India
| | - Ramesh Kataria
- Department of Chemistry and Center of Advanced Studies in Chemistry Panjab University Chandigarh India
| | - Meena Sindhu
- Department of Microbiology, COBS&H CCS Haryana Agricultural University Hisar India
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Liu D, Wang Z, Zhou JJ, Gan X. Design, synthesis and nematocidal activity of novel 1,2,4-oxadiazole derivatives with a 1,3,4-thiadiazole amide moiety. PHOSPHORUS SULFUR 2022. [DOI: 10.1080/10426507.2022.2046580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Dan Liu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Zhengxing Wang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Jing-Jiang Zhou
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Xiuhai Gan
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
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Chen GQ, Zhu LN, Yang JM, Zhang S, Li YH, Guo XL, Sun D, He JX, Tian YE, Liu SM, Jiang J, Huang XB, Che ZP. Synthesis of novel 3/5(3,5)-(di)nitropaeonol hydrazone derivatives as nematicidal agents. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2022; 24:66-75. [PMID: 33550877 DOI: 10.1080/10286020.2021.1874941] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 01/06/2021] [Accepted: 01/07/2021] [Indexed: 06/12/2023]
Abstract
Eighteen novel 3/5(3,5)-(di)nitropaeonol hydrazone derivatives were prepared, and their structures well characterized by 1H NMR, HRMS, and mp. Due to the steric hindrance, the substituents on the C = N double bond of all hydrazine compounds (except E/Z = 4/1 for IV-1g, IV-1l, IV-2b, and E/Z = 3/2 for IV-1n, IV-3a) adopted E configuration. Among all compounds, four compounds 2, 4, IV-1j, and IV-1n exhibited potent nematicidal activity than their precursor paeonol, especially 5-nitropaeonol (2) and 3,5-dinitropaeonol (4) displayed the most potent nematicidal activity Heterodera glycines in vivo with LC50 values of 32.3307 and 36.7074 mg/L, respectively.
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Affiliation(s)
- Gen-Qiang Chen
- Laboratory of Pesticidal Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471023, China
| | - Li-Na Zhu
- Laboratory of Pesticidal Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471023, China
| | - Jin-Ming Yang
- Laboratory of Pesticidal Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471023, China
| | - Song Zhang
- Laboratory of Pesticidal Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471023, China
| | - Yuan-Hao Li
- Laboratory of Pesticidal Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471023, China
| | - Xiao-Long Guo
- Laboratory of Pesticidal Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471023, China
| | - Di Sun
- Laboratory of Pesticidal Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471023, China
| | - Jia-Xuan He
- Laboratory of Pesticidal Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471023, China
| | - Yue-E Tian
- Laboratory of Pesticidal Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471023, China
| | - Sheng-Ming Liu
- Laboratory of Pesticidal Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471023, China
| | - Jia Jiang
- Laboratory of Pesticidal Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471023, China
| | - Xiao-Bo Huang
- Laboratory of Pesticidal Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471023, China
| | - Zhi-Ping Che
- Laboratory of Pesticidal Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471023, China
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Yang J, Huang D, Wang K, Wang J, Su Y, Deng Z, Yang T, Hu Y. Study on N-Alkylation Reactions of Trifluoromethylated Acylhydrazones. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202011001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Chen GQ, Xia YF, Yang JM, Che ZP, Sun D, Li S, Tian YE, Liu SM, Jiang J, Lin XM. Controlled synthesis of N, N-dimethylarylsulfonamide derivatives as nematicidal agents. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2020; 22:1197-1206. [PMID: 31773971 DOI: 10.1080/10286020.2019.1694513] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 11/13/2019] [Indexed: 06/10/2023]
Abstract
Gramine can be intelligently and efficiently supplied with N, N-dimethylamino group and then reacted with the corresponding sulfonyl chlorides to synthesize N, N-dimethylarylsulfonamides. We herein designed and controlled synthesis of N, N-dimethylarylsulfonamide derivatives, and first reported the results of the nematicidal activity of 15 title compounds 3a-o against Meloidogyne incongnita in vitro, respectively. Among all of the title derivatives, compounds 3a, 3c, 3k, and 3o exhibited potent nematicidal activity with median lethal concentration (LC50) values ranging from 0.22 to 0.26 mg/L. Most noteworthy, N, N-dimethyl-4-methoxyphenylsulfonamide (3c) and N, N-dimethyl-8-quinolinesulfonamide (3o) showed the best promising and pronounced nematicidal activity, with LC50 values of 0.2381 and 0.2259 mg/L, respectively.
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Affiliation(s)
- Gen-Qiang Chen
- Laboratory of Pharmaceutical Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471003, China
| | - Yan-Fei Xia
- Laboratory of Pharmaceutical Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471003, China
| | - Jin-Ming Yang
- Laboratory of Pharmaceutical Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471003, China
| | - Zhi-Ping Che
- Laboratory of Pharmaceutical Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471003, China
| | - Di Sun
- Laboratory of Pharmaceutical Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471003, China
| | - Shen Li
- Laboratory of Pharmaceutical Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471003, China
| | - Yue-E Tian
- Laboratory of Pharmaceutical Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471003, China
| | - Sheng-Ming Liu
- Laboratory of Pharmaceutical Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471003, China
| | - Jia Jiang
- Laboratory of Pharmaceutical Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471003, China
| | - Xiao-Min Lin
- Laboratory of Pharmaceutical Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471003, China
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15
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Chen J, Li QX, Song B. Chemical Nematicides: Recent Research Progress and Outlook. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:12175-12188. [PMID: 33079521 DOI: 10.1021/acs.jafc.0c02871] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Plant-parasitic nematodes have caused huge economic losses to agriculture worldwide and seriously threaten the sustainable development of modern agriculture. Chemical nematicides are still the most effective means to manage nematodes. However, the long-term use of organophosphorus and carbamate nematicides has led to a lack of field control efficacy and increased nematode resistance. To meet the huge market demand and slow the growth of resistance, new nematicides are needed to enter the market. The rational design and synthesis of new chemical scaffolds to screen for new nematicides is still a difficult task. We reviewed the latest research progress of nematicidal compounds in the past decade, discussed the structure-activity relationship and mechanism of action, and recommended some nematicidal active fragments. It is hoped that this review can update the recent progress on nematicide discoveries and provide new ideas for the design and mechanism of action studies of nematicides.
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Affiliation(s)
- Jixiang Chen
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Qing X Li
- Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, Honolulu, Hawaii 96822, United States
| | - Baoan Song
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
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16
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Zhu T, Gu Y, Cheng H, Chen M. Versatile modelling of polyoxymethylene-water partition coefficients for hydrophobic organic contaminants using linear and nonlinear approaches. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 728:138881. [PMID: 32361362 DOI: 10.1016/j.scitotenv.2020.138881] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 04/19/2020] [Accepted: 04/20/2020] [Indexed: 06/11/2023]
Abstract
Environmental fate or transport of hydrophobic organic contaminants (HOCs) depends on the partitioning properties of compounds within various environmental phases. Due to the wide application of polyoxymethylene (POM) in the passive sampling technique, several in silico models were developed to predict POM-water partition coefficients (KPOM-w) in accordance with the guidelines of the Organization for Economic Cooperation and Development (OECD). It is an attempt to combine conventional linear method (multiple linear regression, MLR) and popular nonlinear algorithm (artificial neural network, ANN) for estimating partition coefficients of HOCs. All models were performed on a dataset of 210 chemicals from 13 different classes. The polyparameter linear free energy relationship (pp-LFER) model included 5 molecular descriptors, namely, E, S, A, B and V, and predicted log KPOM-w with R2adj of 0.825. The values of statistical parameters including R2adj, Q2ext, RMSEtra and RMSEext for quantitative structure-property relationship (QSPR)-MLR and QSPR-ANN models with four descriptors (ALOGP, MeanDD, E1m and Mor24s) were: (0.928, 0.877, 0.498 and 0.649) and (0.943, 0.905, 0.443 and 0.571), with high similarity for both models, which confirmed the robustness, significance, and remarkable prediction accuracy of the QSPR models. Moreover, the mechanism interpretation revealed that the molecular volume and hydrophobicity had a major impact on distribution procedure of HOCs. The models developed herein, with the broad applicability domain (AD), provide suitable tools to fill the experimental data gap for untested chemicals and help researchers better understand the mechanistic basis of adsorption behavior of POM.
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Affiliation(s)
- Tengyi Zhu
- School of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, Jiangsu, China.
| | - Yuanyuan Gu
- School of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, Jiangsu, China
| | - Haomiao Cheng
- School of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, Jiangsu, China
| | - Ming Chen
- School of Civil Engineering, Southeast University, Nanjing 210096, China; Department of Engineering Science, University of Oxford, Oxford OX1 3PJ, UK
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17
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Tian YE, Sun D, Yang JM, Che ZP, Liu SM, Lin XM, Jiang J, Chen GQ. Synthesis of sulfonate derivatives of maltol and their biological activity against Phytophthora capsici and Bursaphelenchus xylophilus in vitro. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2020; 22:578-587. [PMID: 31046458 DOI: 10.1080/10286020.2019.1608958] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 04/11/2019] [Accepted: 04/11/2019] [Indexed: 06/09/2023]
Abstract
Sixteen sulfonate derivatives of maltol were synthesized and screened in vitro for their anti-oomycete and nematicidal activity against Phytophthora capsici and Bursaphelenchus xylophilus, respectively. Among all the compounds, 3e, 3m, and 3p exhibited the most promising and pronounced anti-oomycete activity against P. capsici than zoxamide, and the EC50 values of 25.42, 18.44, 23.69, and 27.99 mg/L, respectively; compounds 3e, 3m, 3n, and 3p exhibited potent nematicidal activity with LC50 values ranging from 1 to 2 mg/L, especially 3m and 3n showed the best promising and pronounced nematicidal activity, with LC50 values of 1.1762 and 1.2384 mg/L, respectively. [Formula: see text].
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Affiliation(s)
- Yue-E Tian
- Laboratory of Pharmaceutical Design and Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471003, China
| | - Di Sun
- Laboratory of Pharmaceutical Design and Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471003, China
| | - Jin-Ming Yang
- Laboratory of Pharmaceutical Design and Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471003, China
| | - Zhi-Ping Che
- Laboratory of Pharmaceutical Design and Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471003, China
| | - Sheng-Ming Liu
- Laboratory of Pharmaceutical Design and Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471003, China
| | - Xiao-Min Lin
- Laboratory of Pharmaceutical Design and Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471003, China
| | - Jia Jiang
- Laboratory of Pharmaceutical Design and Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471003, China
| | - Gen-Qiang Chen
- Laboratory of Pharmaceutical Design and Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471003, China
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18
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Lu H, Zhou X, Wang L, Jin L. Synthesis and Antibacterial Evaluation of N-phenylacetamide Derivatives Containing 4-arylthiazole Moieties. Molecules 2020; 25:molecules25081772. [PMID: 32290634 PMCID: PMC7221908 DOI: 10.3390/molecules25081772] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Accepted: 04/10/2020] [Indexed: 02/06/2023] Open
Abstract
A series of new N-phenylacetamide derivatives containing 4-arylthiazole moieties was designed and synthesized by introducing the thiazole moiety into the amide scaffold. The structures of the target compounds were confirmed by 1H-NMR, 13C-NMR and HRMS. Their in vitro antibacterial activities were evaluated against three kinds of bacteria-Xanthomonas oryzae pv. Oryzae (Xoo), Xanthomonas axonopodis pv. Citri (Xac) and X.oryzae pv. oryzicola (Xoc)-showing promising results. The minimum 50% effective concentration (EC50) value of N-(4-((4-(4-fluoro-phenyl)thiazol-2-yl)amino)phenyl)acetamide (A1) is 156.7 µM, which is superior to bismerthiazol (230.5 µM) and thiodiazole copper (545.2 µM). A scanning electron microscopy (SEM) investigation has confirmed that compound A1 could cause cell membrane rupture of Xoo. In addition, the nematicidal activity of the compounds against Meloidogyne incognita (M. incognita) was also tested, and compound A23 displayed excellent nematicidal activity, with mortality of 100% and 53.2% at 500 μg/mL and 100 μg/mL after 24 h of treatment, respectively. The preliminary structure-activity relationship (SAR) studies of these compounds are also briefly described. These results demonstrated that phenylacetamide derivatives may be considered as potential leads in the design of antibacterial agents.
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Affiliation(s)
| | - Xia Zhou
- Correspondence: (X.Z.); (L.J.); Tel.: +86-851-3620-521 (X.Z. & L.J.); Fax: +86-851-3622-211 (X.Z. & L.J.)
| | | | - Linhong Jin
- Correspondence: (X.Z.); (L.J.); Tel.: +86-851-3620-521 (X.Z. & L.J.); Fax: +86-851-3622-211 (X.Z. & L.J.)
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19
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Rajasekharan SK, Kim S, Kim JC, Lee J. Nematicidal activity of 5-iodoindole against root-knot nematodes. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2020; 163:76-83. [PMID: 31973872 DOI: 10.1016/j.pestbp.2019.10.012] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 10/04/2019] [Accepted: 10/29/2019] [Indexed: 06/10/2023]
Abstract
Multi-drug resistance in nematodes is a serious problem as lately several resistant phenotypes have emerged following the intermittent usage of synthetic nematicides. Contemporary research continues to focus on developing and/or repurposing small molecule inhibitors that are eco-friendly. Here, we describe the repurposing of the indole derivative, 5-iodoindole, as a nematicide for the root-knot nematode, Meloidogyne incognita. 5-Iodoindole effectively killed juveniles and freshly hatched juveniles by inducing multiple vacuole formation. Notably, at higher dosage (50 μg/mL), 5-iodoindole induced rapid juvenile death within 6 h. Microscopic analysis confirmed that the rapid death was due to the generation of reactive oxygen species (ROS). Computational docking attributed this ROS production to the antagonistic effect of 5-iodoindole on glutathione S-transferase (GST), which is known to play a critical role in the suppression of ROS in nematode models. Furthermore, 5-iodoindole also effectively reduced the gall formations and eggs masses of M. incognita on Solanum lycopersicum roots in pot experiments, and importantly it did not harm the physiological properties of the plant. Overall, the study provides valuable insights on the use of 5-iodoindole as an alternate measure to control root-knot nematodes. Overall, our findings suggest the efficacy of 5-iodoindole should be studied under field conditions.
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Affiliation(s)
| | - Seulbi Kim
- Department of Agricultural Chemistry, Institute of Environmentally Friendly Agriculture, College of Agriculture and Life Sciences, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Jin-Cheol Kim
- Department of Agricultural Chemistry, Institute of Environmentally Friendly Agriculture, College of Agriculture and Life Sciences, Chonnam National University, Gwangju 61186, Republic of Korea.
| | - Jintae Lee
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea.
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20
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Angelova VT, Rangelov M, Todorova N, Dangalov M, Andreeva-Gateva P, Kondeva-Burdina M, Karabeliov V, Shivachev B, Tchekalarova J. Discovery of novel indole-based aroylhydrazones as anticonvulsants: Pharmacophore-based design. Bioorg Chem 2019; 90:103028. [DOI: 10.1016/j.bioorg.2019.103028] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 05/29/2019] [Accepted: 05/31/2019] [Indexed: 10/26/2022]
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21
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Feng Y, Yu Z, Zhang S, Xue Z, Huang J, Zhang H, Wan X, Chen A, Wang J. Isolation and Characterization of New 16-Membered Macrolides from the aveA3 Gene Replacement Mutant Strain Streptomyces avermitilis TM24 with Acaricidal and Nematicidal Activities. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:4782-4792. [PMID: 30973721 DOI: 10.1021/acs.jafc.9b00079] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Polyketides represent an important class of biologically active and structurally diverse compounds found in nature. They are biosynthesized from acyl CoA precursors by polyketide synthases (PKSs). The use of combinatorial biosynthesis to form hybrid PKSs is considered to be an excellent approach for the development of novel polyketides. Here, 10 new 16-membered macrolide compounds were isolated from the broth of the genetically engineered strain Streptomyces avermitilis TM24, in which the PKS gene aveA3 was seamlessly replaced by the milbemycin PKS gene milA3. Their structures were elucidated on the basis of NMR and MS spectroscopic analyses. The acaricidal and nematicidal activities of them against Tetranychus cinnabarinus and Bursaphelenchus xylophilus were tested. The results indicated that compound 1 had potent acaricidal activity against adult mites with an LC50 value of 0.0022 mg L-1, while compounds 5 and 7 possessed potent nematicidal activity with LC50 values of 4.56 and 4.30 mg L-1, respectively.
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Affiliation(s)
- Youling Feng
- Provincial Joint Engineering Laboratory of Biopesticide Preparation, School of Forestry & Biotechnology , Zhejiang Agricultural and Forestry University , Lin'An 311300 , People's Republic of China
| | - Zhen Yu
- Zhejiang Key Laboratory of Antifungal Drugs , Zhejiang Hisun Pharmaceutical Co., Ltd. , Taizhou 318000 , People's Republic of China
| | - Shaoyong Zhang
- Zhejiang Key Laboratory of Antifungal Drugs , Zhejiang Hisun Pharmaceutical Co., Ltd. , Taizhou 318000 , People's Republic of China
| | - Zhenglian Xue
- College of Biochemical Engineering , Anhui Polytechnic University , Wuhu 241000 , People's Republic of China
| | - Jun Huang
- Zhejiang Key Laboratory of Antifungal Drugs , Zhejiang Hisun Pharmaceutical Co., Ltd. , Taizhou 318000 , People's Republic of China
- Zhejiang Makohs Biotech Co., Ltd. , Taizhou 318000 , People's Republic of China
| | - Hui Zhang
- Zhejiang Key Laboratory of Antifungal Drugs , Zhejiang Hisun Pharmaceutical Co., Ltd. , Taizhou 318000 , People's Republic of China
| | - Xu Wan
- Provincial Joint Engineering Laboratory of Biopesticide Preparation, School of Forestry & Biotechnology , Zhejiang Agricultural and Forestry University , Lin'An 311300 , People's Republic of China
| | - Anliang Chen
- Provincial Joint Engineering Laboratory of Biopesticide Preparation, School of Forestry & Biotechnology , Zhejiang Agricultural and Forestry University , Lin'An 311300 , People's Republic of China
| | - Jidong Wang
- Zhejiang Key Laboratory of Antifungal Drugs , Zhejiang Hisun Pharmaceutical Co., Ltd. , Taizhou 318000 , People's Republic of China
- College of Biochemical Engineering , Anhui Polytechnic University , Wuhu 241000 , People's Republic of China
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22
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Pan D, Chu J, Gao X, Wang C, Meng Q, Chi H, Dong Y, Duan C, Zhang Z. Regioselective N-1 and C-2 diacylation of 3-substituted indoles with arylglyoxal hydrates for the synthesis of indolyl diketones. Org Biomol Chem 2019; 16:6998-7003. [PMID: 30229781 DOI: 10.1039/c8ob01776j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A highly regioselective N-1 and C-2 diacylation of 3-substituted indoles with arylglyoxal hydrates to afford N-1 and C-2 indolyl diketones in moderate to good yields is described. Notably, the control of regioselectivity is achieved by small changes in the Cu catalyst, additive and solvent. Importantly, the intermediates for N-1 and C-2 diacylation were detected and two plausible pathways were also proposed.
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Affiliation(s)
- Dalong Pan
- Key Laboratory for Functional Material, Educational Department of Liaoning Province, University of Science and Technology Liaoning, Anshan 114051, P. R. China.
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23
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Rajasekharan SK, Lee JH, Ravichandran V, Kim JC, Park JG, Lee J. Nematicidal and insecticidal activities of halogenated indoles. Sci Rep 2019; 9:2010. [PMID: 30765810 PMCID: PMC6375993 DOI: 10.1038/s41598-019-38561-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Accepted: 01/02/2019] [Indexed: 12/25/2022] Open
Abstract
Parasite death via ion channel activations is the hallmark of anthelmintic and antiparasitic drugs. Glutamate gated chloride channel (GluCl) is a prominent targets for drug selection and design in parasitology. We report several iodine-fluorine based lead activators of GluCl by computational studies and structure-activity relationship analysis. 5-Fluoro-4-iodo-1H-pyrrolo [2, 3-b] pyridine and 5-iodoindole were bioactive hits that displayed in vitro anthelmintic and insecticidal activities against Bursaphelenchus xylophilus, Meloidogyne incognita, and Tenebrio molitor. Two important findings stood out: (i) 5F4IPP induced parasite death, and interacted proficiently with Gln219 amino acid of pentameric GluCl in docking analysis, and (ii) 5-iodoindole appeared to act by forming giant vacuoles in nematodes, which led to a form of non-apoptotic death known as methuosis. The study suggests halogenated-indoles and 1H-pyrrolo [2, 3-b] pyridine derivatives be regarded potential biocides for plant-parasitic nematodes and insects, and warrants further research on the mode of actions, and field investigations.
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Affiliation(s)
| | - Jin-Hyung Lee
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - Vinothkannan Ravichandran
- Shandong University-Helmholtz Institute of Biotechnology, School of Life Science, Shandong University, Jinan, P. R. China
| | - Jin-Cheol Kim
- Department of Agricultural Chemistry, Institute of Environmentally Friendly Agriculture, College of Agriculture and Life Sciences, Chonnam National University, Gwangju, Republic of Korea
| | - Jae Gyu Park
- Advanced Bio Convergence Center, Pohang Technopark Foundation, Pohang, 37668, Republic of Korea
| | - Jintae Lee
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea.
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24
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Tian P, Liu D, Liu Z, Shi J, He W, Qi P, Chen J, Song B. Design, synthesis, and insecticidal activity evaluation of novel 4-(N, N-diarylmethylamines)furan-2(5H)-one derivatives as potential acetylcholine receptor insecticides. PEST MANAGEMENT SCIENCE 2019; 75:427-437. [PMID: 29956450 DOI: 10.1002/ps.5132] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 06/17/2018] [Accepted: 06/26/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Flupyradifurone is a member of a novel class of insecticides that possess excellent insecticidal activities. Halogen-containing phenyl groups are important and indispensable structural components of many pesticides. However, replacement of the difluoromethyl group of flupyradifurone with halogen-containing phenyl groups has not been reported. Hence, a series of novel butenolide derivatives containing phenyl groups were synthesized and bioassayed to discover novel compounds with excellent insecticidal activities. RESULTS Some target molecules exhibited good insecticidal activities against Aphis craccivora. Among the title compounds, 4cc showed the best insecticidal activities with an 50% lethal concentration (LC50 ) value of 1.72 μg mL-1 , which is superior to that of pymetrozine (LC50 = 6.86 μg mL-1 ). Molecular docking indicated that 4cc lacks oxidative metabolism by CYP6CM1 and metabolic resistance with imidacloprid. Furthermore, label-free quantitative proteomic analysis indicated that 4cc may be a potential acetylcholine receptor insecticide that acts on the nicotinic acetylcholine receptor. Compound 4cc also decreased the capability for oxidative metabolism, which further supported the molecular docking results. CONCLUSION This work can be used to further investigate the mechanism underlying the insecticidal activity of butenolide derivatives and develop potential novel butenolide insecticides. © 2018 Society of Chemical Industry.
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Affiliation(s)
- Pingyi Tian
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Dengyue Liu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Zhengjun Liu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Jing Shi
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Wenjing He
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Puying Qi
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Jixiang Chen
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Baoan Song
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
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Che Z, Tian Y, Liu S, Hu M, Chen G. Synthesis and in vitro anti-HIV-1 evaluation of some N-arylsulfonyl-3-formylindoles. BRAZ J PHARM SCI 2018. [DOI: 10.1590/s2175-97902018000317044] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Affiliation(s)
- Zhiping Che
- Henan University of Science and Technology, China
| | - Yuee Tian
- Henan University of Science and Technology, China
| | | | - Mei Hu
- Henan University of Science and Technology, China
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26
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Bai X, Yan L, Ji C, Zhang Q, Dong X, Chen A, Zhao M. A combination of ternary classification models and reporter gene assays for the comprehensive thyroid hormone disruption profiles of 209 polychlorinated biphenyls. CHEMOSPHERE 2018; 210:312-319. [PMID: 30005353 DOI: 10.1016/j.chemosphere.2018.07.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 06/24/2018] [Accepted: 07/05/2018] [Indexed: 06/08/2023]
Abstract
Computational toxicology is widely applied to screen tens and thousands of potential environmental endocrine disruptors (EDCs) for its great efficiency and rapid evaluation in recent years. Polychlorinated biphenyls (PCBs) with 209 congeners have not been comprehensively tested for their ability to interact with the thyroid receptor (TR), which is one of the most extensively studied targets related to the effects of EDCs. In this study, we aimed to determine the thyroid-disrupting mechanisms of 209 PCBs through the combination of a novel computational ternary classification model and luciferase reporter gene assay. The reporter gene assay was performed to examine the hormone activities of 22 PCBs via TR to classify their profiles as agonistic, antagonistic or inactive. Thus, six agonists, eleven antagonists and seven inactive chemicals against TR were identified in in vitro assays. Then, six relevant variables, including molecular structural descriptors and molecular docking scores, were selected for describing compounds. Machine learning methods (i.e., linear discriminant analysis (LDA) and support vector machines (SVM)) were used to build classification models. The optimal model was obtained by using SVM, with an accuracy of 88.24% in the training set, 80.0% in the test set and 75.0% in 10-fold cross-validation. The remaining 187 PCB congeners' hormone activities were predicted using the obtained models. Out of these PCBs, the SVM model predicted 38 agonists and 81 antagonists. The findings revealed that higher chlorinated PCBs tended to have TR-antagonistic activities, whereas lower chlorinated PCBs were agonists. This study provided a reference for further exploring PCBs' thyroid effect.
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Affiliation(s)
- Xiaoxia Bai
- Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310006, China
| | - Lu Yan
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang, 310032, China
| | - Chenyang Ji
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang, 310032, China
| | - Quan Zhang
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang, 310032, China
| | - Xiaowu Dong
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang, 310058, China.
| | - An Chen
- College of Information Engineering, China Jiliang University, Hangzhou, Zhejiang, 310018, China
| | - Meirong Zhao
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang, 310032, China.
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Gupta P, Gutcaits A. Development and Validation of a Robust QSAR Model for Benzothiazole Hydrazone Derivatives as Bcl-XL Inhibitors. LETT DRUG DES DISCOV 2018. [DOI: 10.2174/1570180815666180502093039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Background:
B-cell Lymphoma Extra Large (Bcl-XL) belongs to B-cell Lymphoma two
(Bcl-2) family. Due to its over-expression and anti-apoptotic role in many cancers, it has been proven
to be a more biologically relevant therapeutic target in anti-cancer therapy. In this study, a Quantitative
Structure Activity Relationship (QSAR) modeling was performed to establish the link between
structural properties and inhibitory potency of benzothiazole hydrazone derivatives against Bcl-XL.
Methods:
The 53 benzothiazole hydrazone derivatives have been used for model development using
genetic algorithm and multiple linear regression methods. The data set is divided into training and
test set using Kennard-Stone based algorithm. The best QSAR model has been selected with statistically
significant r2 = 0.931, F-test =55.488 RMSE = 0.441 and Q2 0.900.
Results:
The model has been tested successfully for external validation (r2
pred = 0.752), as well as
different criteria for acceptable model predictability. Furthermore, analysis of the applicability domain
has been carried out to evaluate the prediction reliability of external set molecules. The developed
QSAR model has revealed that nThiazoles, nROH, EEig13d, WA, BEHv6, HATS6m,
RDF035u and IC4 descriptors are important physico-chemical properties for determining the inhibitory
activity of these molecules.
Conclusion:
The developed QSAR model is stable for this chemical series, indicating that test set
molecules represent the training dataset. The model is statistically reliable with good predictability.
The obtained descriptors reflect important structural features required for activity against Bcl-XL.
These properties are designated by topology, shape, size, geometry, substitution information of the
molecules (nThiazoles and nROH) and electronic properties. In a nutshell, these characteristics can
be successfully utilized for designing and screening of novel inhibitors.
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Affiliation(s)
- Pawan Gupta
- CNS Active Compound Laboratory, Latvian Institute of Organic Synthesis, Riga, LV1006, Latvia
| | - Aleksandrs Gutcaits
- CNS Active Compound Laboratory, Latvian Institute of Organic Synthesis, Riga, LV1006, Latvia
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Design, synthesis and biological evaluation of novel zanamivir derivatives as potent neuraminidase inhibitors. Bioorg Med Chem Lett 2018; 28:3622-3629. [PMID: 30389293 DOI: 10.1016/j.bmcl.2018.10.040] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 10/25/2018] [Indexed: 01/22/2023]
Abstract
Neuraminidase (NA) is an important antiviral drug target. Zanamivir is one of the most potent NA inhibitors. In this paper, a series of zanamivir derivatives as potential NA inhibitors were studied by combination of molecular modeling techniques including 3D-QSAR, molecular docking, and molecular dynamics (MD) simulation. The results show that the best CoMFA (comparative molecular field analysis) model has q2 = 0.728 and r2 = 0.988, and the best CoMSIA (comparative molecular similarity indices analysis) model has q2 = 0.750 and r2 = 0.981, respectively. The built 3D-QSAR models show significant statistical quality and excellent predictive ability. Seven new NA inhibitors were designed and predicted. 20 ns of MD simulations were carried out and their binding free energies were calculated. Two designed compounds were selected to be synthesized and biologically evaluated by NA inhibition and virus inhibition assays. One compound (IC50 = 0.670 µM, SI > 149) exhibits excellent antiviral activity against A/WSN/33 H1N1, which is superior to the reference drug zanamivir (IC50 = 0.873 µM, SI > 115). The theoretical and experimental results may provide reference for development of new anti-influenza drugs.
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29
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Wei M, Yang X, Watson P, Yang F, Liu H. Development of QSAR model for predicting the inclusion constants of organic chemicals with α-cyclodextrin. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:17565-17574. [PMID: 29663298 DOI: 10.1007/s11356-018-1917-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Accepted: 04/02/2018] [Indexed: 06/08/2023]
Abstract
Solubility is a crucial limiting factor in pharmaceutical research and contaminated site remediation. Cyclodextrin, with its structure of hydrophilic exterior and hydrophobic cavity, has a potential ability to enhance the hydrophobic chemical's solubility through the formation of host-guest complex. The stability of host-guest complex is often quantified by the inclusion constant. In this study, the logarithm of 1:1 α-cyclodextrin inclusion constants (log Kα) for 195 organic chemicals was collected. With this parameter as the endpoint, a quantitative structure-activity relationship (QSAR) model was developed using DRAGON descriptors and stepwise multiple linear regression analysis. The model statistics parameters indicated that the established model had a good determination coefficient of 0.857, a high cross-validation coefficient of 0.835, a low root mean square error of 0.380, together with the acceptable results of external validation, which indicate a satisfactory goodness-of-fit, robustness, and predictive ability of the model. Based on the screened eight descriptors, we propose an appropriate mechanism interpretation for the inclusion interaction. Additionally, the applicability domain of the current model was characterized by the Euclidean distance-based method and Williams plot, and results indicated that the model covered a large number of structurally diverse chemicals belonging to 13 different classes. Comparing with the previous reported models, this model has obvious advantages with a larger dataset, a higher value of correlation coefficient, and a wider application domain.
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Affiliation(s)
- Mengbi Wei
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, Jiangsu Province, China
| | - Xianhai Yang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, Jiangsu Province, China.
| | - Peter Watson
- Department of Civil and Environmental Engineering, University of Connecticut, Storrs, CT, 06268, USA
| | - Feifei Yang
- Department of Civil and Environmental Engineering, University of Connecticut, Storrs, CT, 06268, USA
| | - Huihui Liu
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, Jiangsu Province, China.
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30
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Lawrence MA, Green KA, Nelson PN, Lorraine SC. Review: Pincer ligands—Tunable, versatile and applicable. Polyhedron 2018. [DOI: 10.1016/j.poly.2017.08.017] [Citation(s) in RCA: 105] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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31
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Che Z, Tian Y, Liu S, Hu M, Chen G. Discovery of N-arylsulfonyl-3-acylindole benzoyl hydrazone derivatives as anti-HIV-1 agents. BRAZ J PHARM SCI 2018. [DOI: 10.1590/s2175-97902018000417543] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Affiliation(s)
- Zhiping Che
- Henan University of Science and Technology, People′s Republic of China
| | - Yuee Tian
- Henan University of Science and Technology, People′s Republic of China
| | - Shengming Liu
- Henan University of Science and Technology, People′s Republic of China
| | - Mei Hu
- Henan University of Science and Technology, People′s Republic of China
| | - Genqiang Chen
- Henan University of Science and Technology, People′s Republic of China
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32
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The complexing properties of oxalodihydrazide, acethydrazide and formic hydrazide with Cu(II) in aqueous solution. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2016.04.041] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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33
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Wang C, Zhang Z, Liu K, Yan J, Zhang T, Lu G, Meng Q, Chi H, Duan C. Copper-catalyzed synthesis of indolyl diketones via C–H oxidation/diacylation of indoles with arylglyoxal hydrates. Org Biomol Chem 2017; 15:6185-6193. [DOI: 10.1039/c7ob01255a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Copper-catalyzed synthesis of indolyl diketonesviaC–H oxidation/diacylation of indoles with arylglyoxal hydrates is described.
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Affiliation(s)
- Cuiping Wang
- Key Laboratory for Functional Material
- Educational Department of Liaoning Province
- University of Science and Technology Liaoning
- Anshan 114051
- P. R. China
| | - Zhiqiang Zhang
- Key Laboratory for Functional Material
- Educational Department of Liaoning Province
- University of Science and Technology Liaoning
- Anshan 114051
- P. R. China
| | - Kui Liu
- Key Laboratory for Functional Material
- Educational Department of Liaoning Province
- University of Science and Technology Liaoning
- Anshan 114051
- P. R. China
| | - Jingbo Yan
- AmberMolTech LLC
- Beijing 100081
- P. R. China
| | - Tiexin Zhang
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Gonghao Lu
- Key Laboratory for Functional Material
- Educational Department of Liaoning Province
- University of Science and Technology Liaoning
- Anshan 114051
- P. R. China
| | - Qingtao Meng
- Key Laboratory for Functional Material
- Educational Department of Liaoning Province
- University of Science and Technology Liaoning
- Anshan 114051
- P. R. China
| | - Haijun Chi
- Key Laboratory for Functional Material
- Educational Department of Liaoning Province
- University of Science and Technology Liaoning
- Anshan 114051
- P. R. China
| | - Chunying Duan
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- Dalian 116024
- P. R. China
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34
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Li X, Liang D, Huang W, Zhou H, Li Z, Wang B, Ma Y, Wang H. Visible light-induced carbonylation of indoles with arylsulfonyl chlorides and CO. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.11.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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35
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Bakir M, Lawrence MA, Nelson PN, Conry RR. Spectroscopic and electrochemical properties of di-2-thienyl ketone thiosemicarbazone (dtktsc): electrochemical reactions with electrophiles (H+ and CO2). Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.07.051] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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36
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Ghosh A, Bainbridge DT, Stanley LM. Enantioselective Model Synthesis and Progress toward the Putative Structure of Yuremamine. J Org Chem 2016; 81:7945-51. [PMID: 27494137 DOI: 10.1021/acs.joc.6b01730] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
An enantioselective model synthesis of the 2,3-dihydro-1H-pyrrolo[1,2-a]indole core of the putative structure of yuremamine is reported in 39% overall yield and 96% ee over five steps. The model synthesis leverages enantioselective, rhodium-catalyzed hydroacylation of an N-vinylindole-2-carboxaldehyde as the key step in the installation of the stereochemical triad. An enantioselective synthesis of a densely functionalized dihydropyrroloindolone that maps onto the putative structure of yuremamine is demonstrated in 26% yield and 97% ee over eight steps.
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Affiliation(s)
- Avipsa Ghosh
- Department of Chemistry, Iowa State University , Ames, Iowa 50011, United States
| | - David T Bainbridge
- Department of Chemistry, Iowa State University , Ames, Iowa 50011, United States
| | - Levi M Stanley
- Department of Chemistry, Iowa State University , Ames, Iowa 50011, United States
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37
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Che Z, Tian Y, Hu Z, Chen Y, Liu S, Chen G. Synthesis and in vitro anti-HIV-1 activity of a series of N-arylsulfonyl-3-propionylindoles. ACTA ACUST UNITED AC 2016; 71:105-9. [PMID: 27124676 DOI: 10.1515/znc-2015-0122] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2015] [Accepted: 03/30/2016] [Indexed: 11/15/2022]
Abstract
Fifteen N-arylsulfonyl-3-propionylindoles (3a-o) were prepared and preliminarily evaluated as in vitro inhibitors of human immunodeficiency virus type-1 (HIV-1). Three compounds 3c, 3g and 3i exhibited potent anti-HIV-1 activity with effective concentration (EC(50)) values of 0.8, 4.0 and 1.2 μg/mL, and therapeutic index (TI) values of 11.7, 16.6 and 84.1, respectively. N-(m-Nitro)phenylsulfonyl-3-propionyl-6-methylindole (3i) exhibited the most promising and best activity against HIV-1 replication. The cytotoxicity of these compounds was assessed as well.
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38
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39
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Yu X, Feng G, Huang J, Xu H. Evaluation of some quinoline-based hydrazone derivatives as insecticidal agents. RSC Adv 2016. [DOI: 10.1039/c6ra00993j] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Seven-day mortality rates of compounds 3c, 3e, 4g, 4h and 6f at 1 mg mL−1 against three-day-old larvae of Spodoptera litura were all greater than 93%. They may be considered as promising insecticidal candidates.
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Affiliation(s)
- Xiang Yu
- Research Institute of Pesticidal Design & Synthesis
- College of Sciences
- Northwest A&F University
- Yangling 712100
- People′s Republic of China
| | - Gang Feng
- Environment and Plant Protection Institute
- Chinese Academy of Tropical Agricultural Science
- Haikou 571101
- People′s Republic of China
| | - Jiulin Huang
- Research Institute of Pesticidal Design & Synthesis
- College of Sciences
- Northwest A&F University
- Yangling 712100
- People′s Republic of China
| | - Hui Xu
- Research Institute of Pesticidal Design & Synthesis
- College of Sciences
- Northwest A&F University
- Yangling 712100
- People′s Republic of China
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40
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Wang GL, Chen X, Chang YN, Du D, Li Z, Xu XY. Synthesis of 1,2,3-benzotriazin-4-one derivatives containing spirocyclic indoline-2-one moieties and their nematicidal evaluation. CHINESE CHEM LETT 2015. [DOI: 10.1016/j.cclet.2015.10.024] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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41
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Eloh K, Demurtas M, Deplano A, Ngoutane Mfopa A, Murgia A, Maxia A, Onnis V, Caboni P. In vitro nematicidal activity of aryl hydrazones and comparative GC-MS metabolomics analysis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:9970-9976. [PMID: 26528945 DOI: 10.1021/acs.jafc.5b04815] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A series of aryl hydrazones were synthesized and in vitro assayed for their activity on the root-knot nematode Meloidogyne incognita. The phenylhydrazones of thiophene-2-carboxyaldehyde 5, 3-methyl-2-thiophenecarboxyaldehyde, 6, and salicylaldehyde, 2, were the most potent with EC50/48h values of 16.6 ± 2.2, 23.2 ± 2.7, and 24.3 ± 1.4 mg/L, respectively. A GC-MS metabolomics analysis, after in vitro nematode treatment with hydrazone 6 at 100 mg/L for 12 h, revealed elevated levels of fatty acids such as lauric acid, stearic acid, 2-octenoic acid, and palmitic acid. Whereas control samples showed the highest levels of monoacylglycerols such as monostearin and 2-monostearin, surprisingly, 2 h after treatment with hydrazone 6, nematodes excreted 3 times the levels of ammonia eliminated in the same conditions by controls. Thus, phenylhydrazones may represent a good scaffold in the discovery and synthesis of new nematicidal compounds, and a metabolomics approach may be helpful in understanding their mechanisms of toxicity and mode of action.
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Affiliation(s)
- Kodjo Eloh
- Department of Life and Environmental Sciences, University of Cagliari , via Ospedale 72, 09124 Cagliari, Italy
| | - Monica Demurtas
- Department of Life and Environmental Sciences, University of Cagliari , via Ospedale 72, 09124 Cagliari, Italy
| | - Alessandro Deplano
- Department of Life and Environmental Sciences, University of Cagliari , via Ospedale 72, 09124 Cagliari, Italy
| | - Alvine Ngoutane Mfopa
- Department of Life and Environmental Sciences, University of Cagliari , via Ospedale 72, 09124 Cagliari, Italy
| | - Antonio Murgia
- Department of Life and Environmental Sciences, University of Cagliari , via Ospedale 72, 09124 Cagliari, Italy
| | - Andrea Maxia
- Department of Life and Environmental Sciences, University of Cagliari , via Ospedale 72, 09124 Cagliari, Italy
| | - Valentina Onnis
- Department of Life and Environmental Sciences, University of Cagliari , via Ospedale 72, 09124 Cagliari, Italy
| | - Pierluigi Caboni
- Department of Life and Environmental Sciences, University of Cagliari , via Ospedale 72, 09124 Cagliari, Italy
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42
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A Simple, Effective, Green Method for the Regioselective 3-Acylation of Unprotected Indoles. Molecules 2015; 20:19605-19. [PMID: 26516834 PMCID: PMC6331820 DOI: 10.3390/molecules201019605] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Revised: 10/22/2015] [Accepted: 10/22/2015] [Indexed: 11/17/2022] Open
Abstract
A fast and green method is developed for regioselective acylation of indoles in the 3-position without the need for protection of the NH position. The method is based on Friedel-Crafts acylation using acid anhydrides. The method has been optimized, and Y(OTf)₃ in catalytic amounts is found to be the best catalyst together with the commercially available ionic liquid [BMI]BF₄ (1-butyl-3-methylimidazolium tetrafluoro-borate) as solvent. The reaction is completed in a very short time using monomode microwave irradiation. The catalyst can be reused up to four times without significant loss of activity. A range of substituted indoles are investigated as substrates, and thirteen new compounds have been synthesized.
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43
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Yu X, Shi L, Ke S. Acylhydrazone derivatives as potential anticancer agents: Synthesis, bio-evaluation and mechanism of action. Bioorg Med Chem Lett 2015; 25:5772-6. [PMID: 26546214 DOI: 10.1016/j.bmcl.2015.10.069] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Revised: 09/18/2015] [Accepted: 10/22/2015] [Indexed: 01/28/2023]
Abstract
A series of novel acylhydrazone derivatives were designed, synthesized and evaluated for their potential cytotoxic effects against human cancer cell lines. The preliminary results indicated that some of the obtained compounds (such as 8b, 13c) exhibited good to moderate cytotoxic activities against human HepG2, Huh-7, and BCG-823 cell lines. Especially, compounds 8c and 8e presented obviously selective cytotoxic activities against Huh-7 in vitro (8c, IC50=7.74±2.18μg/mL; 8e, IC50=4.46±1.05μg/mL) compared to 5-FU (IC50=10.41±3.41μg/mL). The highly potential compounds to induce apoptosis in HepG2 cells were analyzed by flow cytometry, and the apoptotic effects of compounds 8b and 13c were further evaluated using Annexin V-FITC/propidium iodide dual staining assay.
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Affiliation(s)
- Xifang Yu
- Huangshi Central Hospital, Hubei Polytechnic University, Huangshi 435000, People's Republic of China
| | - Liqiao Shi
- National Biopesticide Engineering Research Center, Hubei Academy of Agricultural Sciences, Wuhan 430064, People's Republic of China
| | - Shaoyong Ke
- National Biopesticide Engineering Research Center, Hubei Academy of Agricultural Sciences, Wuhan 430064, People's Republic of China.
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44
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Wang G, Chen X, Deng Y, Li Z, Xu X. Synthesis and Nematicidal Activities of 1,2,3-Benzotriazin-4-one Derivatives against Meloidogyne incognita. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:6883-6889. [PMID: 26145729 DOI: 10.1021/acs.jafc.5b01762] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A series of novel 1,2,3-benzotriazin-4-one derivatives were synthesized by the reaction of 3-bromoalkyl-1,2,3-benzotriazin-4-ones with potassium salt of 2-cyanoimino-4-oxothiazolidine in the presence of potassium iodide. Nematicidal assays in vivo showed that some of them exhibited good control efficacy against the cucumber root-knot nematode disease caused by Meloidogyne incognita, up to 100% at the concentration of 10.0 mg L(-1), which indicated that 1,2,3-benzotriazin-4-one derivatives might be potential for novel promising nematicides. The nematicidal activity was influenced by the combination of substituent type, substituted position, and linker length in the molecule. The inhibition rate data at the concentrations of 5.0 and 1.0 mg L(-1) for the compounds with high inhibitory activities were also provided. When tested in vitro, none of them showed direct inhibition against M. incognita. The investigation of a significant difference between in vivo and in vitro data is in progress.
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Affiliation(s)
- Gaolei Wang
- †Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, People's Republic of China
| | - Xiulei Chen
- †Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, People's Republic of China
| | - Yayun Deng
- †Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, People's Republic of China
| | - Zhong Li
- †Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, People's Republic of China
- ‡Shanghai Collaborative Innovation Center for Biomanufacturing Technology, 130 Meilong Road, Shanghai 200237, People's Republic of China
| | - Xiaoyong Xu
- †Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, People's Republic of China
- ‡Shanghai Collaborative Innovation Center for Biomanufacturing Technology, 130 Meilong Road, Shanghai 200237, People's Republic of China
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45
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Bakir M, Lawrence MAW, McBean S. Spectroscopic and electrochemical properties of group 12 acetates of di-2-pyridylketone thiophene-2-carboxylic acid hydrazone (dpktch-H) complexes. The structure of [Cd(η³-N,N,O-dpktch-H)₂]. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 146:323-330. [PMID: 25827616 DOI: 10.1016/j.saa.2015.03.079] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Revised: 08/01/2014] [Accepted: 03/06/2015] [Indexed: 06/04/2023]
Abstract
The reaction between [dpktch] and [M(OAc)2] (M=group 12 metal atom) in refluxing CH3CN gave [M(η(2)-O,O-OAc)(η(3)-N,N,O-dpktch-H)]·nH2O (n=0 or 1). The infrared and (1)H NMR spectra are consistent with the coordination of [η(2)-O,O-OAc] and [η(3)-N,N,O-dpktch-H](-) and the proposed formulations. The electronic absorption spectra of [M(η(2)-O,O-OAc)(η(3)-N,N,O-dpktch-H)]·nH2O measured in non-aqueous solvents revealed a highly intense intra-ligand-charge transfer (ILCT) transition due to π-π∗ of dpk followed by dpk→thiophene charge transfer. The electronic transitions of [M(η(2)-O,O-OAc)(η(3)-N,N,O-dpktch-H)]·nH2O are solvent and concentration dependent. Spectrophotometric titrations of dmso solutions of [M(η(2)-O,O-OAc)(η(3)-N,N,O-dpktch-H)]·nH2O with benzoic acid revealed irreversible inter-conversion between [M(η(2)-O,O-OAc)(η(3)-N,N,O-dpktch-H)]·nH2O and it conjugate acid [M(η(2)-O,O-OAc)(η(3)-N,N,O-dpktch)]·nH2O pointing to ligand exchange between the acetate and benzoate anions. When CH2Cl2 solutions of [M(η(2)-O,O-OAc)(η(3)-N,N,O-dpktch-H)]·nH2O were titrated with dmso, changes appeared pointing to solvolysis or ligand exchange reactions. Electrochemical measurements on dmso solutions of [M(η(2)-O,O-OAc)(η(3)-N,N,O-dpktch-H)]·nH2O divulged irreversible redox transformations consistent with electrochemical decomposition of [M(η(2)-O,O-OAc)(η(3)-N,N,O-dpktch-H)]·nH2O. The solid state structure of a single crystal of [Cd(η(3)-N,N,O-dpktch-H)2] obtained from a dmso solution of [Cd(η(2)-O,O-OAc)(η(3)-N,N,O-dpktch-H)]·nH2O confirmed the ligand scrambling of [M(η(2)-O,O-OAc)(η(3)-N,N,O-dpktch-H)]·nH2O. The extended structure of [Cd(η(3)-N,N,O-dpktch-H)2] revealed stacks of [Cd(η(3)-N,N,O-dpktch-H)2] locked via a network of hydrogen bonds. A significant amount of empty space (35.5%) was observed in the solid state structure of [Cd(η(3)-N,N,O-dpktch-H)2].
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Affiliation(s)
- Mohammed Bakir
- Department of Chemistry, The University of the West Indies, Mona Campus, Kingston 7, W.I., Jamaica.
| | - Mark A W Lawrence
- Department of Chemistry, The University of the West Indies, Mona Campus, Kingston 7, W.I., Jamaica
| | - Shameal McBean
- Department of Chemistry, The University of the West Indies, Mona Campus, Kingston 7, W.I., Jamaica
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Design, synthesis, and insecticidal activity of some novel diacylhydrazine and acylhydrazone derivatives. Molecules 2015; 20:5625-37. [PMID: 25830791 PMCID: PMC6272438 DOI: 10.3390/molecules20045625] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Revised: 03/22/2015] [Accepted: 03/25/2015] [Indexed: 11/27/2022] Open
Abstract
In this study a series of diacylhydrazine and acylhydrazone derivatives were designed and synthesized according to the method of active group combination and the principles of aromatic group bioisosterism. The structures of the novel derivatives were determined on the basis on 1H-NMR, IR and ESI-MS spectral data. All of the compounds were evaluated for their in vivo insecticidal activity against the third instar larvae of Spodopteraexigua Hiibner, Helicoverpaarmigera Hubner, Plutellaxyllostella Linnaeus and Pierisrapae Linne, respectively, at a concentration of 10 mg/L. The results showed that all of the derivatives displayed high insecticidal activity. Most of the compounds presented higher insecticidal activity against S. exigua than the reference compounds tebufenozide, metaflumizone and tolfenpyrad, and approximately identical insecticidal activity against H.armigera, P.xyllostella and P.rapae as the references metaflumizone and tolfenpyrad.
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Laha JK, Dayal N, Jethava KP, Prajapati DV. Access to Biaryl Sulfonamides by Palladium-Catalyzed Intramolecular Oxidative Coupling and Subsequent Nucleophilic Ring Opening of Heterobiaryl Sultams with Amines. Org Lett 2015; 17:1296-9. [DOI: 10.1021/acs.orglett.5b00290] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Joydev K. Laha
- Department of Pharmaceutical
Technology (Process Chemistry), National Institute of Pharmaceutical Education and Research, S. A. S. Nagar, Punjab 160062, India
| | - Neetu Dayal
- Department of Pharmaceutical
Technology (Process Chemistry), National Institute of Pharmaceutical Education and Research, S. A. S. Nagar, Punjab 160062, India
| | - Krupal P. Jethava
- Department of Pharmaceutical
Technology (Process Chemistry), National Institute of Pharmaceutical Education and Research, S. A. S. Nagar, Punjab 160062, India
| | - Dilip V. Prajapati
- Department of Pharmaceutical
Technology (Process Chemistry), National Institute of Pharmaceutical Education and Research, S. A. S. Nagar, Punjab 160062, India
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Li Z, Wu L, Zhang T, Huang Z, Qiu G, Zhou Z, Jin L. N-2-Hydroxybenzaldehyde acylhydrazone–Fe(iii) complex: synthesis, crystal structure and its efficient and selective N-methylation. Dalton Trans 2014; 43:7554-60. [DOI: 10.1039/c4dt00121d] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The n-acylhydrazone–Fe(iii) complexes permit ligand's amide N to be easily methylated and suppress the O-methylation side reactions of phenol.
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Affiliation(s)
- Zhiyou Li
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education
- South-Central University for Nationalities
- Wuhan, P. R. China
| | - Lamei Wu
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education
- South-Central University for Nationalities
- Wuhan, P. R. China
| | - Tao Zhang
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education
- South-Central University for Nationalities
- Wuhan, P. R. China
| | - Zhengxi Huang
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education
- South-Central University for Nationalities
- Wuhan, P. R. China
| | - Guofu Qiu
- College of Pharmacy
- Wuhan University
- Wuhan, China
| | - Zhongqiang Zhou
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education
- South-Central University for Nationalities
- Wuhan, P. R. China
| | - Longfei Jin
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education
- South-Central University for Nationalities
- Wuhan, P. R. China
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