1
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Zhang X, Li T, Zhao L, Xu H, Yan C, Jin Y, Wang Z. DFT-aided infrared and electronic circular dichroism spectroscopic study of cyclopeptide S-PK6 and the exploration of its antitumor potential by molecular docking. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.134903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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2
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Puente AR, Nagabhushanam K, Ganjihal S, Majeed M, Polavarapu PL. Chiroptical spectroscopic studies for the absolute configuration determination of hexahydrocurcumin and octahydrocurcumin. Chirality 2022; 34:1515-1525. [DOI: 10.1002/chir.23511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 10/07/2022] [Accepted: 10/13/2022] [Indexed: 11/07/2022]
Affiliation(s)
- Andrew R. Puente
- Department of Chemistry Vanderbilt University Nashville Tennessee USA
| | | | | | - Muhammed Majeed
- Sabinsa Corporation East Windsor New Jersey USA
- Sami‐Sabinsa Group Bangalore India
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3
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Johnson JL, Santoro E, Zatout R, Petrovic AG, Cimmino A, Superchi S, Evidente A, Berova ND, Polavarapu PL. Absolute configuration of seco-eudesmanolide inuloxin D from experimental and predicted chiroptical studies of its 4-O-acetyl derivative. Chirality 2021; 33:233-241. [PMID: 33598968 DOI: 10.1002/chir.23301] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 02/05/2021] [Accepted: 02/08/2021] [Indexed: 12/12/2022]
Abstract
Sesquitepenoids inuloxins A-D, belonging to different subgroups, were isolated from Dittrichia viscosa and showed potential biocontrol of some parasitic plants as Pelipanche, Orobanche, and Cuscuta species. The absolute configurations of the first three inuloxins A-C were previously determined by using experimental and computational chiroptical spectroscopic methods. The absolute configuration of inuloxin D remains to be established. The bioactive inuloxin E, closely related to inuloxin D, was recently isolated from the same plant organic extract. The same relative configuration of inuloxin D was assigned to inuloxin E by comparison of their NMR spectroscopic data. The absolute configurations of inuloxin D and inuloxin E are suggested in this work by analysis of the experimental and predicted chiroptical properties of the 4-O-acetyl derivative of inuloxin D.
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Affiliation(s)
- Jordan L Johnson
- Department of Chemistry, Vanderbilt University, Nashville, Tennessee, USA
| | - Ernesto Santoro
- Department of Chemistry, Vanderbilt University, Nashville, Tennessee, USA
| | - Roukia Zatout
- Department of chemical Sciences, University of Naples Federico II, Naples, Italy
- Laboratoire de Mycologie, de Biotechnologie et de l'Activité Microbienne (LaMyBAM), Département de Biologie Appliquée, Université des Frères Mentouri, Constantine, Algeria
| | - Ana G Petrovic
- Department of Chemical and Biological Sciences, New York Institute of Technology, New York, New York, USA
| | - Alessio Cimmino
- Department of chemical Sciences, University of Naples Federico II, Naples, Italy
| | | | - Antonio Evidente
- Department of chemical Sciences, University of Naples Federico II, Naples, Italy
| | - Nina D Berova
- Department of Chemistry, Columbia University, New York, New York, USA
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4
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Sun CP, Jia ZL, Huo XK, Tian XG, Feng L, Wang C, Zhang BJ, Zhao WY, Ma XC. Medicinal Inula Species: Phytochemistry, Biosynthesis, and Bioactivities. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2021; 49:315-358. [PMID: 33622212 DOI: 10.1142/s0192415x21500166] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
As a genus of the Asteraceae, Inula is widely distributed all over the world, and several of them are being used in traditional medicines. A number of metabolites were isolated from Inula species, and some of these have shown to possess ranges of pharmacological activities. The genus Inula contains abundant sesquiterpenoids, such as eudesmanes, xanthanes, and sesquiterpenoid dimers and trimers. In addition, other types of terpenoids, flavonoids, and lignins also exist in the genus Inula. Since 2010, more than 300 new secondary metabolites, including several known natural products that were isolated for the first time from the genus Inula. Most of them exhibited potential bioactivities in various diseases. The review aimed to summarize the advance of recent researches (2010-2020) on phytochemical constituents, biosynthesis, and pharmacological properties of the genus Inula for providing a scientific basis and supporting its application and exploitation for new drug development.
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Affiliation(s)
- Cheng-Peng Sun
- Dalian Key Laboratory of Metabolic Target, Characterization and Traditional Chinese, Medicine Intervention, College of Pharmacy, Institute of Integrative Medicine, Dalian, Medical University, Dalian, P. R. China.,Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, P. R. China
| | - Zi-Li Jia
- School of Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, P. R. China
| | - Xiao-Kui Huo
- Dalian Key Laboratory of Metabolic Target, Characterization and Traditional Chinese, Medicine Intervention, College of Pharmacy, Institute of Integrative Medicine, Dalian, Medical University, Dalian, P. R. China
| | - Xiang-Ge Tian
- Dalian Key Laboratory of Metabolic Target, Characterization and Traditional Chinese, Medicine Intervention, College of Pharmacy, Institute of Integrative Medicine, Dalian, Medical University, Dalian, P. R. China
| | - Lei Feng
- Dalian Key Laboratory of Metabolic Target, Characterization and Traditional Chinese, Medicine Intervention, College of Pharmacy, Institute of Integrative Medicine, Dalian, Medical University, Dalian, P. R. China
| | - Chao Wang
- Dalian Key Laboratory of Metabolic Target, Characterization and Traditional Chinese, Medicine Intervention, College of Pharmacy, Institute of Integrative Medicine, Dalian, Medical University, Dalian, P. R. China
| | - Bao-Jing Zhang
- Dalian Key Laboratory of Metabolic Target, Characterization and Traditional Chinese, Medicine Intervention, College of Pharmacy, Institute of Integrative Medicine, Dalian, Medical University, Dalian, P. R. China
| | - Wen-Yu Zhao
- Dalian Key Laboratory of Metabolic Target, Characterization and Traditional Chinese, Medicine Intervention, College of Pharmacy, Institute of Integrative Medicine, Dalian, Medical University, Dalian, P. R. China
| | - Xiao-Chi Ma
- Dalian Key Laboratory of Metabolic Target, Characterization and Traditional Chinese, Medicine Intervention, College of Pharmacy, Institute of Integrative Medicine, Dalian, Medical University, Dalian, P. R. China.,Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, P. R. China
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5
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Zatout R, Masi M, Sangermano F, Vurro M, Zonno MC, Santoro E, Calabrò V, Superchi S, Evidente A. Drophiobiolins A and B, Bioactive Ophiobolan Sestertepenoids Produced by Dreschslera gigantea. JOURNAL OF NATURAL PRODUCTS 2020; 83:3387-3396. [PMID: 33074690 DOI: 10.1021/acs.jnatprod.0c00836] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Two new bioactive ophiobolan sestertepenoids, named drophiobiolins A and B (1 and 2) were isolated from Drechslera gigantea, a fungus proposed as a mycoherbicide for biocontrol of Digitaria sanguinalis. They were isolated together with ophiobolin A, the main metabolite, 6-epi-ophiobolin A, 3-anhydro-6-epi-ophiobolin A, and ophiobolin I. Drophiobolins A and B were characterized by NMR, HRESIMS, and chemical methods as 7-hydroxy-7-(6-hydroxy-6-methylheptan-2-yl)-1,9a-dimethyl-3-oxo-3,3a,6,6a,7,8,9,9a,10,10a-decahydrodicyclopenta [a,d][8]annulene-4-carbaldehyde and 6-(hydroxymethyl)-3',9,10a-trimethyl-5'-(2-methylprop-1-en-1-yl)-3a,4,4',5',10,10a-hexahydro-1H,3'H-spiro[dicyclopenta[a,d] [8]annulene-3,2'-furan]-5,7(2H,9aH)-dione. The relative configuration of drophiobolins A and B, which did not afford crystals suitable for X-ray analysis, was determined by NOESY experiments, while the absolute configuration was assigned by comparison of their experimental and TDDFT calculated electronic circular dichroism (ECD) spectra. The phytotoxic activity of drophiobolins A and B was tested by leaf-puncture assay on cultivated (Lycopersicon esculentum L.), as well as on host (Digitaria sanguinalis L.) and nonhost (Chenopodium album L.) weed plants, compared to that of ophiobolin A. Both of the newly identified ophiobolins showed significant phytotoxicity. Drophiobolins A and B exhibited cytotoxicity against Hela B cells with an IC50 value of 10 μM. However, they had a lesser or no effect against Hacat, H1299, and A431 cells when compared to that of ophiobolin A.
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Affiliation(s)
- Roukia Zatout
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Universitario Monte Sant'Angelo, Via Cintia 4, 80126 Napoli, Italy
- Laboratoire de Mycologie, de Biotechnologie et de l'Activité Microbienne (LaMyBAM), Département de Biologie Appliquée, Université des Frères Mentouri, Constantine1, BP, 325 Route de Aïn El Bey, 25017 Constantine, Algeria
| | - Marco Masi
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Universitario Monte Sant'Angelo, Via Cintia 4, 80126 Napoli, Italy
| | - Felicia Sangermano
- Dipartimento di Biologia, Università di Napoli Federico II, Complesso Universitario Monte Sant'Angelo, Via Cintia 4, 80126 Napoli, Italy
| | - Maurizio Vurro
- Istituto di Scienze delle Produzioni Alimentari, CNR, Via Amendola 122/O, 70126 Bari, Italy
| | - Maria Chiara Zonno
- Istituto di Scienze delle Produzioni Alimentari, CNR, Via Amendola 122/O, 70126 Bari, Italy
| | - Ernesto Santoro
- Dipartimento di Scienze, Università della Basilicata, Via dell'Ateneo Lucano 10, 85100 Potenza, Italy
| | - Viola Calabrò
- Dipartimento di Biologia, Università di Napoli Federico II, Complesso Universitario Monte Sant'Angelo, Via Cintia 4, 80126 Napoli, Italy
| | - Stefano Superchi
- Dipartimento di Scienze, Università della Basilicata, Via dell'Ateneo Lucano 10, 85100 Potenza, Italy
| | - Antonio Evidente
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Universitario Monte Sant'Angelo, Via Cintia 4, 80126 Napoli, Italy
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6
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Lu H, Qi Y, Zhao Y, Jin N. Effects of Hydroxyl Group on the Interaction of Carboxylated Flavonoid Derivatives with S. Cerevisiae α-Glucosidase. Curr Comput Aided Drug Des 2020; 16:31-44. [PMID: 30345924 PMCID: PMC6967131 DOI: 10.2174/1573409914666181022142553] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2018] [Revised: 08/23/2018] [Accepted: 10/17/2018] [Indexed: 02/07/2023]
Abstract
Introduction Carboxyalkyl flavonoids derivatives are considered as effective inhibitors in reducing post-prandial hyperglycaemia. Methods Combined with Density Functional Theory (DFT) and the theory of Atoms in Molecules (AIM), molecular docking and charge density analysis are carried out to understand the molecular flexibility, charge density distribution and the electrostatic properties of these carboxyalkyl derivatives. Results Results show that the electron density of the chemical bond C14-O17 on B ring of molecule II increases while O17-H18 decreases at the active site, suggesting the existence of weak non-covalent interactions, most prominent of which are H-bonding and electrostatic interaction. When hydroxyl groups are introduced, the highest positive electrostatic potentials are distributed near the B ring hydroxyl hydrogen atom and the carboxyl hydrogen atom on the A ring. It was reported that quercetin has a considerably inhibitory activity to S. cerevisiae α-glucosidase, from the binding affinities, it is suggested that the position and number of hydroxyl groups on the B and C rings are also pivotal to the hypoglycemic activity when the long carboxyalkyl group is introduced into the A ring. Conclusion It is concluded that the presence of three well-defined zones in the structure, both hydrophobicity alkyl, hydrophilicity carboxyl and hydroxyl groups are necessary.
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Affiliation(s)
- Huining Lu
- Department of Life Sciences and Biological Engineering, Northwest Minzu University, Lanzhou 730124, China
| | - Yanjiao Qi
- Department of Chemical Engineering, Northwest Minzu University, Lanzhou 730124, China.,Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in Universities of Gansu Province, Lanzhou, China
| | - Yaming Zhao
- Department of Chemical Engineering, Northwest Minzu University, Lanzhou 730124, China
| | - Nengzhi Jin
- Gansu Province Computing Center, Lanzhou 730000, China
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7
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Masi M, Santoro E, Clement S, Meyer S, Scafato P, Superchi S, Evidente A. Further secondary metabolites produced by the fungus
Pyricularia grisea
isolated from buffelgrass (
Cenchrus ciliaris
). Chirality 2020; 32:1234-1242. [DOI: 10.1002/chir.23270] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 07/05/2020] [Accepted: 07/06/2020] [Indexed: 02/06/2023]
Affiliation(s)
- Marco Masi
- Dipartimento di Scienze Chimiche Università di Napoli Federico II, Complesso Universitario Monte S. Angelo Naples Italy
| | - Ernesto Santoro
- Dipartimento di Scienze Università della Basilicata Potenza Italy
| | - Suzette Clement
- Shrub Sciences Laboratory U.S. Forest Service Rocky Mountain Research Station Provo Utah USA
| | - Susan Meyer
- Shrub Sciences Laboratory U.S. Forest Service Rocky Mountain Research Station Provo Utah USA
| | - Patrizia Scafato
- Dipartimento di Scienze Università della Basilicata Potenza Italy
| | - Stefano Superchi
- Dipartimento di Scienze Università della Basilicata Potenza Italy
| | - Antonio Evidente
- Dipartimento di Scienze Chimiche Università di Napoli Federico II, Complesso Universitario Monte S. Angelo Naples Italy
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8
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Masi M, Pannacci E, Santoro E, Zermane N, Superchi S, Evidente A. Stoechanones A and B, Phytotoxic Copaane Sesquiterpenoids Isolated from Lavandula stoechas with Potential Herbicidal Activity against Amaranthus retroflexus. JOURNAL OF NATURAL PRODUCTS 2020; 83:1658-1665. [PMID: 32383878 DOI: 10.1021/acs.jnatprod.0c00182] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
From the organic extract of Lavandula stoechas, a Mediterranean native plant species, two new phytotoxic copaane sesquiterpenoids were isolated and named stoechanones A and B (1 and 2). They were obtained together with the methyl esters of caffeic and p-coumaric acids and the flavonoid apigenin (3-5, respectively). The structures of stoechanones A and B were determined by spectroscopic (essentially 1D and 2D 1H and 13C NMR and HRESIMS) and chemical methods, and they were characterized as 9,10-dihydroxy-8-isopropyl-1,5-dimethyltricyclo[4.4.0.02.7]dec-4-en-3-one and its 9-O-acetyl derivative. Their relative configurations were assigned by NOESY experiments, and the absolute configurations by comparison of the experimental and DFT-computed ECD spectra. When assayed through Petri dish bioassays, both stoechanones A and B showed phytotoxic effects against seed germination and seedling growth of Amaranthus retroflexus, strongly inhibiting seed germination percentage and radicle and hypocotyl lengths of seedlings. Owing to the herbicidal activity toward A. retroflexus, these two new tricyclic sesquiterpenoids could be proposed and developed as natural bioherbicides in order to increase the control of this problematic weed in the future.
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Affiliation(s)
- Marco Masi
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Universitario Monte S. Angelo, Via Cintia 4, 80126 Napoli, Italy
| | - Euro Pannacci
- Dipartimento di Scienze Agrarie, Alimentari e Ambientali, Università degli Studi di Perugia, Borgo XX Giugno, 74, 06121 Perugia, Italy
| | - Ernesto Santoro
- Dipartimento di Scienze, Università della Basilicata, Via dell'Ateneo Lucano 10, 85100 Potenza, Italy
| | - Nadjia Zermane
- Faculty of Sciences, University of Algiers, 2 Didouche Mourad Street, 16002 Algiers, Algeria
| | - Stefano Superchi
- Dipartimento di Scienze, Università della Basilicata, Via dell'Ateneo Lucano 10, 85100 Potenza, Italy
| | - Antonio Evidente
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Universitario Monte S. Angelo, Via Cintia 4, 80126 Napoli, Italy
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9
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Santoro E, Vergura S, Scafato P, Belviso S, Masi M, Evidente A, Superchi S. Absolute Configuration Assignment to Chiral Natural Products by Biphenyl Chiroptical Probes: The Case of the Phytotoxins Colletochlorin A and Agropyrenol. JOURNAL OF NATURAL PRODUCTS 2020; 83:1061-1068. [PMID: 32091903 PMCID: PMC7997626 DOI: 10.1021/acs.jnatprod.9b01068] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
The application of flexible biphenyls as chiroptical probes for the absolute configuration assignment to chiral natural products is described. The method is straightforward and reliable and can be applied to conformationally mobile and ECD silent compounds, not treatable by computational analysis of chiroptical data. By this approach, the (6'R) absolute configuration of the phytotoxin colletochlorin A (1) was confirmed, while the absolute configuration of the phytotoxin agropyrenol (2), previously assigned by the NMR Mosher method, was revised and assigned as (3'S,4'S). Moreover, with the biphenyl method the configurational assignment can be obtained simply by the sign of a diagnostic Cotton effect at 250 nm in the ECD spectrum, thus allowing application without the need of advanced knowledge of chiroptical spectroscopy and computational protocols.
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Affiliation(s)
- Ernesto Santoro
- Department
of Sciences, University of Basilicata, Viale dell’Ateneo Lucano
10, 85100 Potenza, Italy
| | - Stefania Vergura
- Department
of Sciences, University of Basilicata, Viale dell’Ateneo Lucano
10, 85100 Potenza, Italy
| | - Patrizia Scafato
- Department
of Sciences, University of Basilicata, Viale dell’Ateneo Lucano
10, 85100 Potenza, Italy
| | - Sandra Belviso
- Department
of Sciences, University of Basilicata, Viale dell’Ateneo Lucano
10, 85100 Potenza, Italy
| | - Marco Masi
- Department
of Chemical Sciences, University of Naples
Federico II, Complesso Universitario Monte San’Angelo, Via Cintia 4, 80126 Napoli, Italy
| | - Antonio Evidente
- Department
of Chemical Sciences, University of Naples
Federico II, Complesso Universitario Monte San’Angelo, Via Cintia 4, 80126 Napoli, Italy
| | - Stefano Superchi
- Department
of Sciences, University of Basilicata, Viale dell’Ateneo Lucano
10, 85100 Potenza, Italy
- Tel: +39-0971-20-6098. Fax: +39-0971-20-5678.
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10
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Padula D, Mazzeo G, Santoro E, Scafato P, Belviso S, Superchi S. Amplification of the chiroptical response of UV-transparent amines and alcohols by N-phthalimide derivatization enabling absolute configuration determination through ECD computational analysis. Org Biomol Chem 2020; 18:2094-2102. [PMID: 32107518 DOI: 10.1039/d0ob00052c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The stereoselective transformation of chiral UV-transparent amines and alcohols to phthalimides has proved to be a simple and efficient method to enhance the chiroptical response of these substrates allowing their reliable absolute configuration determination by computational analysis of ECD spectra. Such a transformation also leads to a significant reduction in the molecular conformational flexibility thus simplifying the conformational analysis required by the computational treatment. The method described herein thus allows the absolute configuration assignment to these challenging substrates to be much easier and reliable.
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Affiliation(s)
- Daniele Padula
- Dipartimento di Scienze, Università della Basilicata, via dell'Ateneo Lucano, 85100, Potenza, Italy.
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The conventional turns rather than irregular γ-/β-turn secondary structures accounting for the antitumor activities of cyclic peptide Phakellistatin 6 analogs. Tetrahedron 2020. [DOI: 10.1016/j.tet.2019.130881] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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12
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Dalinova A, Dubovik V, Chisty L, Kochura D, Ivanov A, Smirnov S, Petrova M, Zolotarev A, Evidente A, Berestetskiy A. Stagonolides J and K and Stagochromene A, Two New Natural Substituted Nonenolides and a New Disubstituted Chromene-4,5-dione Isolated from Stagonospora cirsii S-47 Proposed for the Biocontrol of Sonchus arvensis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:13040-13050. [PMID: 31670962 DOI: 10.1021/acs.jafc.9b04573] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Two new natural 10-membered macrolides (1, 2) and one chromene-4,5-dione derivative (3), named stagonolides J and K and stagochromene A, respectively, were isolated from the phytopathogenic fungus Stagonospora cirsii S-47, together with two known compounds, stagonolide A (4) and herbarumin I (5). Stagonolides J and K and stagochromene A were characterized as (5E,7R*,8S*,9R*)-7,8-dihydroxy-9-propyl-5-nonen-9-olide, (5E,7R,9S)-7-hydroxy-9-propyl-5-nonen-9-olide, and (2R*,3R*)-3-hydroxy-2-propyltetrahydro-2H-chromene-4,5(3H,4aH)-dione, respectively, by spectroscopic (mostly by NMR and ESIMS) data. Compounds 1-5 showed different rates of phytotoxic activity on punctured leaf discs of Sonchus arvensis. The antimicrobial, cytotoxic, and antiprotozoal activity of isolated compounds was also evaluated. Based on our data, stagonolide K and herbarumin I can be proposed as a potential scaffold for the development of a new natural herbicide and estimated as possible selection/quality markers of a bioherbicide based on S. cirsii, while stagonolide A can be considered as a mycotoxin.
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Affiliation(s)
- Anna Dalinova
- All-Russian Institute of Plant Protection , Russian Academy of Agricultural Sciences , Podbelskogo st., 3 , Pushkin , Saint-Petersburg 196608 , Russian Federation
| | - Vsevolod Dubovik
- All-Russian Institute of Plant Protection , Russian Academy of Agricultural Sciences , Podbelskogo st., 3 , Pushkin , Saint-Petersburg 196608 , Russian Federation
- Higher School of Technology and Energy (HSTE) , Saint Petersburg State University of Technology and Design , Ivana Chernyh st., 4 , Saint-Petersburg 198095 , Russian Federation
| | - Leonid Chisty
- Research Institute of Hygiene, Occupational Pathology and Human Ecology , Federal Medical Biological Agency , p/o Kuz'molovsky, Kapitolovo, 93 , Saint-Petersburg 188663 , Russian Federation
| | - Dmitriy Kochura
- Research Institute of Hygiene, Occupational Pathology and Human Ecology , Federal Medical Biological Agency , p/o Kuz'molovsky, Kapitolovo, 93 , Saint-Petersburg 188663 , Russian Federation
| | - Alexander Ivanov
- St. Petersburg State University , Universitetsky Av. 26 , St. Petersburg 198504 , Russian Federation
| | - Sergey Smirnov
- St. Petersburg State University , Universitetsky Av. 26 , St. Petersburg 198504 , Russian Federation
| | - Maria Petrova
- All-Russian Institute of Plant Protection , Russian Academy of Agricultural Sciences , Podbelskogo st., 3 , Pushkin , Saint-Petersburg 196608 , Russian Federation
| | - Andrey Zolotarev
- St. Petersburg State University , Universitetsky Av. 26 , St. Petersburg 198504 , Russian Federation
| | - Antonio Evidente
- Dipartimento di Scienze Chimiche , Università di Napoli Federico II, Complesso Universitario Monte Sant'Angelo , Via. Cintia 4 , 80126 Napoli , Italy
| | - Alexander Berestetskiy
- All-Russian Institute of Plant Protection , Russian Academy of Agricultural Sciences , Podbelskogo st., 3 , Pushkin , Saint-Petersburg 196608 , Russian Federation
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13
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Assignment Through Chiroptical Methods of The Absolute Configuration of Fungal Dihydropyranpyran-4-5-Diones Phytotoxins, Potential Herbicides for Buffelgrass ( Cenchrus ciliaris) Biocontrol. Molecules 2019; 24:molecules24173022. [PMID: 31438466 PMCID: PMC6749493 DOI: 10.3390/molecules24173022] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 08/13/2019] [Accepted: 08/15/2019] [Indexed: 01/30/2023] Open
Abstract
Radicinin and cochliotoxin (1 and 2) two phytotoxic pyranpyran-4,5-diones were isolated together with their close metabolites 3-epi-radicinin, radicinol, and its 3-epimer (3-5), from the culture filtrates of Cochliobolus australiensis, a fungus proposed as mycoherbcide for biocontrol of buffelgrass, a very noxious and dangerous weed. The absolute configuration of cochliotoxin was determined by chiroptical Optical Rotatory Dispersion (ORD), Electronic Circular Dichroism (ECD), and Vibrational Circular Dichroism (VCD)) and computational methods. The same methods were used to confirm that of radicinin, radicinol and their 3-epimers, previously determined with chemical, spectroscopic and ECD methods.
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14
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Cimmino A, Freda F, Santoro E, Superchi S, Evidente A, Cristofaro M, Masi M. α-Costic acid, a plant sesquiterpene with acaricidal activity against Varroa destructor parasitizing the honey bee. Nat Prod Res 2019; 35:1428-1435. [PMID: 31418584 DOI: 10.1080/14786419.2019.1652291] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The organic extract of the aerial parts of Dittrichia viscosa, a perennial native plant of the Mediterranean basin, showed a significant acaricidal activity against Varroa destructor, the parasite mite of Apis mellifera, commonly called honey bee. Among the metabolites isolated from the organic extract of this Asteraceae, α-costic acid showed to be one of the compounds responsible for the toxic activity exhibited by the crude plant extract on this parasite mite species. In addition to the toxic effect a clear acaricidal response has been recorded when the parasitic mite was exposed to 1 mg/mL concentration of α-costic acid while no effects have been showed on honey bees using the same compound at the same concentration. This finding suggests a potential use of α-costic acid to control Varroa mites. The possibility to reliably achieve absolute configuration of α-costic acid by DFT computational analysis of chiroptical spectra has been also demonstrated.†.
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Affiliation(s)
- Alessio Cimmino
- Department of Chemical Sciences, University of Naples "Federico II", Complesso Universitario Monte S. Angelo, Napoli, Italy
| | | | - Ernesto Santoro
- Dipartimento di Scienze, Università della Basilicata, Potenza, Italy
| | - Stefano Superchi
- Dipartimento di Scienze, Università della Basilicata, Potenza, Italy
| | - Antonio Evidente
- Department of Chemical Sciences, University of Naples "Federico II", Complesso Universitario Monte S. Angelo, Napoli, Italy
| | - Massimo Cristofaro
- BBCA onlus, Rome, Italy.,ENEA C.R. Casaccia, SSPT-BIOAG-PROBIO, Rome, Italy
| | - Marco Masi
- Department of Chemical Sciences, University of Naples "Federico II", Complesso Universitario Monte S. Angelo, Napoli, Italy
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15
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Mahendra IP, Wirjosentono B, Tamrin, Ismail H, Mendez JA, Causin V. The influence of maleic anhydride-grafted polymers as compatibilizer on the properties of polypropylene and cyclic natural rubber blends. JOURNAL OF POLYMER RESEARCH 2019. [DOI: 10.1007/s10965-019-1878-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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16
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Zhao L, Wu J, Bao Y, Jiang S, Wang Z, Guo C, Jin Y, Qu F. Synthesis of novel isoindole-containing phakellistatin 2 analogs and the conformation features affecting their antitumor activities. NEW J CHEM 2019. [DOI: 10.1039/c9nj01832h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Two novel phakellistatin 2 analogs were synthesized and the conformational features affecting their antitumor activities were studied.
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Affiliation(s)
- Lishuang Zhao
- Key Laboratory of Molecular Cytogenetics and Genetic Breeding of Heilongjiang Province
- College of Life Science and Technology
- Harbin Normal University
- Harbin
- China
| | - Jingwan Wu
- College of Chemistry & Chemical Engineering
- Harbin Normal University
- Harbin
- China
| | - Yujun Bao
- College of Chemistry & Chemical Engineering
- Harbin Normal University
- Harbin
- China
| | - Shitian Jiang
- College of Chemistry & Chemical Engineering
- Harbin Normal University
- Harbin
- China
| | - Zhiqiang Wang
- College of Chemistry & Chemical Engineering
- Harbin Normal University
- Harbin
- China
| | - Changhong Guo
- Key Laboratory of Molecular Cytogenetics and Genetic Breeding of Heilongjiang Province
- College of Life Science and Technology
- Harbin Normal University
- Harbin
- China
| | - Yingxue Jin
- College of Chemistry & Chemical Engineering
- Harbin Normal University
- Harbin
- China
| | - Fengyu Qu
- Key Laboratory of Molecular Cytogenetics and Genetic Breeding of Heilongjiang Province
- College of Life Science and Technology
- Harbin Normal University
- Harbin
- China
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17
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Johnson JL, Raghavan V, Cimmino A, Moeini A, Petrovic AG, Santoro E, Superchi S, Berova N, Evidente A, Polavarapu PL. Absolute configurations of chiral molecules with multiple stereogenic centers without prior knowledge of the relative configurations: A case study of inuloxin C. Chirality 2018; 30:1206-1214. [DOI: 10.1002/chir.23013] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 07/13/2018] [Accepted: 08/10/2018] [Indexed: 12/20/2022]
Affiliation(s)
| | - Vijay Raghavan
- Department of Chemistry Vanderbilt University Nashville TN USA
| | - Alessio Cimmino
- Department of Chemical Science University of Naples Federico II Naples Italy
| | - Arash Moeini
- Department of Chemical Science University of Naples Federico II Naples Italy
| | - Ana G. Petrovic
- Department of Chemistry Columbia University New York NY USA
- Department of Life Sciences New York Institute of Technology New York NY USA
| | - Ernesto Santoro
- Department of Science University of Basilicata Potenza Italy
| | | | - Nina Berova
- Department of Chemistry Columbia University New York NY USA
| | - Antonio Evidente
- Department of Chemical Science University of Naples Federico II Naples Italy
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18
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Ren J, Mistry TL, Su PC, Mehboob S, Demissie R, Fung LWM, Ghosh AK, Johnson ME. Determination of absolute configuration and binding efficacy of benzimidazole-based FabI inhibitors through the support of electronic circular dichroism and MM-GBSA techniques. Bioorg Med Chem Lett 2018; 28:2074-2079. [PMID: 29730028 DOI: 10.1016/j.bmcl.2018.04.052] [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: 03/15/2018] [Revised: 04/19/2018] [Accepted: 04/20/2018] [Indexed: 01/12/2023]
Abstract
We have previously reported benzimidazole-based compounds to be potent inhibitors of FabI for Francisella tularensis (FtFabI), making them promising antimicrobial hits. Optically active enantiomers exhibit markedly differing affinities toward FtFabI. The IC50 of benzimidazole (-)-1 is ∼100× lower than the (+)-enantiomer, with similar results for the 2 enantiomers. Determining the absolute configuration for these optical compounds and elucidating their binding modes is important for further design. Electronic circular dichroism (ECD) quantum calculations have become important in determining absolute configurations of optical compounds. We determined the absolute configuration of (-)/(+)-1 and (-)/(+)-2 by comparing experimental spectra and theoretical density functional theory (DFT) simulations of ECD spectra at the B3LYP/6-311+G(2d, p) level using Gaussian09. Comparison of experimental and calculated ECD spectra indicates that the S configuration corresponds to the (-)-rotation for both compounds 1 and 2, while the R configuration corresponds to the (+)-rotation. Further, molecular dynamics simulations and MM-GBSA binding energy calculations for these two pairs of enantiomers with FtFabI show much tighter binding MM-GBSA free energies for S-1 and S-2 than for their enantiomers, R-1 and R-2, consistent with the S configuration being the more active one, and with the ECD determination of the S configuration corresponding to (-) and the R configuration corresponding to (+). Thus, our computational studies allow us to assign (-) to (S)- and (+) to (R)- for compounds 1 and 2, and to further evaluate structural changes to improve efficacy.
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Affiliation(s)
- Jinhong Ren
- Center for Biomolecular Sciences, University of Illinois at Chicago, 900 S. Ashland Ave, Chicago, IL 60607, USA
| | - Tina L Mistry
- Center for Biomolecular Sciences, University of Illinois at Chicago, 900 S. Ashland Ave, Chicago, IL 60607, USA
| | - Pin-Chih Su
- Center for Biomolecular Sciences, University of Illinois at Chicago, 900 S. Ashland Ave, Chicago, IL 60607, USA
| | - Shahila Mehboob
- Novalex Therapeutics, Inc., 2242 W Harrison, Chicago, IL 60612, USA
| | - Robel Demissie
- Department of Chemistry, University of Illinois at Chicago, 845 W. Taylor St, Chicago, IL 60607, USA
| | - Leslie Wo-Mei Fung
- Department of Chemistry, University of Illinois at Chicago, 845 W. Taylor St, Chicago, IL 60607, USA
| | - Arun K Ghosh
- Department of Chemistry and Department of Medicinal Chemistry, Purdue University, 560 Oval Drive, West Lafayette, IN 47907, USA
| | - Michael E Johnson
- Center for Biomolecular Sciences, University of Illinois at Chicago, 900 S. Ashland Ave, Chicago, IL 60607, USA; Novalex Therapeutics, Inc., 2242 W Harrison, Chicago, IL 60612, USA.
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19
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Cimmino A, Masi M, Rubiales D, Evidente A, Fernández-Aparicio M. Allelopathy for Parasitic Plant Management. Nat Prod Commun 2018. [DOI: 10.1177/1934578x1801300307] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
A number of parasitic plants have adapted to agricultural environments becoming weedy and posing a serious threat to important crops. Available control measures rely heavily on use of synthetic herbicides. The side effects on environmental pollution and food health of chemical control prompted studies to find alternative strategies based on the use of natural products. This article reviews plant and fungal metabolites with potential for the development of specific and efficient methods for the control of parasitic plants.
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Affiliation(s)
- Alessio Cimmino
- Dipartimento di Scienze Chimiche, Complesso Universitario Monte Sant'Angelo, Via Cintia 4,80126, Università di Napoli Federico II, Napoli, Italy
| | - Marco Masi
- Dipartimento di Scienze Chimiche, Complesso Universitario Monte Sant'Angelo, Via Cintia 4,80126, Università di Napoli Federico II, Napoli, Italy
| | - Diego Rubiales
- Institute for Sustainable Agriculture, CSIC, Avda. Menéndez Pidal s/n, 14004 Córdoba, Spain
| | - Antonio Evidente
- Dipartimento di Scienze Chimiche, Complesso Universitario Monte Sant'Angelo, Via Cintia 4,80126, Università di Napoli Federico II, Napoli, Italy
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20
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Górecki M, Capozzi MAM, Albano G, Cardellicchio C, Di Bari L, Pescitelli G. Stereochemical analysis of β-keto sulfoxides by circular dichroism. Chirality 2017; 30:29-42. [DOI: 10.1002/chir.22773] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 09/15/2017] [Accepted: 09/15/2017] [Indexed: 01/02/2023]
Affiliation(s)
- Marcin Górecki
- Dipartimento di Chimica e Chimica Industriale; Università di Pisa; Pisa Italy
- Institute of Organic Chemistry; Polish Academy of Sciences; Warsaw Poland
| | | | - Gianluigi Albano
- Dipartimento di Chimica e Chimica Industriale; Università di Pisa; Pisa Italy
| | | | - Lorenzo Di Bari
- Dipartimento di Chimica e Chimica Industriale; Università di Pisa; Pisa Italy
| | - Gennaro Pescitelli
- Dipartimento di Chimica e Chimica Industriale; Università di Pisa; Pisa Italy
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21
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Covington CL, Raghavan V, Smuts JP, Armstrong DW, Polavarapu PL. Absolute configuration of an axially chiral sulfonate determined from its optical rotatory dispersion, electronic circular dichroism, and vibrational circular dichroism spectra. Chirality 2017; 29:670-676. [DOI: 10.1002/chir.22739] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 07/06/2017] [Accepted: 07/09/2017] [Indexed: 01/18/2023]
Affiliation(s)
- Cody L. Covington
- Department of Chemistry; Vanderbilt University; Nashville Tennessee USA
| | - Vijay Raghavan
- Department of Chemistry; Vanderbilt University; Nashville Tennessee USA
| | - Jonathan P. Smuts
- Department of Chemistry; University of Texas at Arlington; Arlington Texas USA
| | - Daniel W. Armstrong
- Department of Chemistry; University of Texas at Arlington; Arlington Texas USA
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22
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Covington CL, Polavarapu PL. CDSpecTech: A single software suite for multiple chiroptical spectroscopic analyses. Chirality 2017; 29:178-192. [PMID: 28403537 DOI: 10.1002/chir.22691] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Revised: 12/15/2016] [Accepted: 12/19/2016] [Indexed: 01/07/2023]
Abstract
The program CDSpecTech was developed to facilitate the analysis of chiroptical spectra, which include the following: vibrational circular dichroism (VCD) and corresponding vibrational absorption (VA) spectra; vibrational Raman optical activity (VROA) and corresponding vibrational Raman spectra; electronic circular dichroism (ECD) and corresponding electronic absorption (EA) spectra. In addition, the program allows for generating optical rotatory dispersion (ORD) as the Kramers-Kronig transform of ECD spectra. The simulation of theoretical spectra from transition strengths can be achieved using different bandshape profiles. The experimental and simulated theoretical spectra can be visually compared by displaying them together. A unique feature of CDSpecTech is performing spectral analysis using the ratio spectra; i.e., the dimensionless dissymmetry factor (DF) spectrum, which is the ratio of CD to absorption spectra, and the dimensionless circular intensity difference (CID) spectrum, which is the ratio of VROA to vibrational Raman spectra. The quantitative agreement between experimental and simulated theoretical spectra can also be assessed from the numerical similarity overlap between them. Two different similarity overlap methods are available. The program uses a graphical user interface which allows for ease of use and facilitates the analysis. All these features make CDSpecTech a valuable tool for the analysis of chiroptical spectra. The program is freely available on the World Wide Web.
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Affiliation(s)
- Cody L Covington
- Department of Chemistry, Vanderbilt University, Nashville, Tennessee, USA
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23
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Zhao L, Zhang H, Cui J, Zhao M, Wang Z, Yue Q, Jin Y. Photo-induced synthesis and in vitro antitumor activity of Fenestin A analogs. NEW J CHEM 2017. [DOI: 10.1039/c7nj03363j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Two bioactive Fenestin A analogs were synthesized by photo-induced cyclization.
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Affiliation(s)
- Lishuang Zhao
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials
- Heilongjiang Province
- College of Chemistry & Chemical Engineering
- Harbin Normal University
- Harbin
| | - Hongyue Zhang
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials
- Heilongjiang Province
- College of Chemistry & Chemical Engineering
- Harbin Normal University
- Harbin
| | - Jianing Cui
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials
- Heilongjiang Province
- College of Chemistry & Chemical Engineering
- Harbin Normal University
- Harbin
| | - Meiqi Zhao
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials
- Heilongjiang Province
- College of Chemistry & Chemical Engineering
- Harbin Normal University
- Harbin
| | - Zhiqiang Wang
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials
- Heilongjiang Province
- College of Chemistry & Chemical Engineering
- Harbin Normal University
- Harbin
| | - Qunfeng Yue
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials
- Heilongjiang Province
- College of Chemistry & Chemical Engineering
- Harbin Normal University
- Harbin
| | - Yingxue Jin
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials
- Heilongjiang Province
- College of Chemistry & Chemical Engineering
- Harbin Normal University
- Harbin
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