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Durham AC, Liu CR, Wang YM. Iron-Mediated C-H Functionalization of Unactivated Alkynes for the Synthesis of Derivatized Dihydropyrrolones: Regioselectivity Under Thermodynamic Control. Chemistry 2023; 29:e202301195. [PMID: 37203356 PMCID: PMC10525034 DOI: 10.1002/chem.202301195] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 05/17/2023] [Accepted: 05/19/2023] [Indexed: 05/20/2023]
Abstract
Cyclopentadienyliron dicarbonyl-based complexes present opportunities for underexplored disconnections in synthesis. Access to challenging dihydropyrrolone products is achieved by propargylic C-H functionalization of alkynes for the formation of cyclic organoiron species. Excellent regioselectivity for unsymmetrical alkynes is observed in many cases. Notably, regioselectivity under these stoichiometric conditions diverges from those observed previously under catalysis, occurring at the more-substituted terminus of the alkyne, allowing for methine functionalization and the formation of quaternary centers. Divergent demetallation of the intermediate organoiron complexes gives access to chemically diverse products which are amenable to further functionalization.
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Affiliation(s)
- Austin C Durham
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, 15213, Pittsburgh, PA, USA
| | - Cindy R Liu
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, 15213, Pittsburgh, PA, USA
| | - Yi-Ming Wang
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, 15213, Pittsburgh, PA, USA
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Dormousoglou M, Efthimiou I, Antonopoulou M, Dailianis S, Herbst G, Vlastos D. Phytochemical Analysis and Genotoxicological Evaluation of Prickly Pear Peel Extracts. PLANTS (BASEL, SWITZERLAND) 2023; 12:1537. [PMID: 37050163 PMCID: PMC10097089 DOI: 10.3390/plants12071537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 03/29/2023] [Accepted: 03/31/2023] [Indexed: 06/19/2023]
Abstract
This study investigated the beneficial properties of prickly pear peel (PPP) extracts from Opuntia ficus-indica (L.) Mill. Extracts were obtained via the Soxhlet extraction method using methanol (P1), ethanol (P2) and ethanol-water (P3) as extraction solvents. Their total phenolic and flavonoid content (TPC and TFC, respectively) and their antioxidant activity (AA) were determined. The PPP extracts were characterized in detail using mass spectrometry techniques. Their cyto-genotoxic effect and antigenotoxic potential against mitomycin C were evaluated via the cytokinesis block micronucleus (CBMN) assay on human lymphocytes. Enhanced TPC, TFC and AA values were recorded for all the extracts. Moreover, P1 and P2 were cytotoxic only at the highest concentrations, whereas P3 was found to be cytotoxic in all cases. No significant micronucleus induction was observed in the tested extracts. The PPP extracts contain bioactive compounds such as flavonoids, carboxylic acids, alkaloids, fatty acids and minerals (mainly K, Si, Mg, Ca, P and Zn). The results showed that all three extracts exerted high antigenotoxic activity. Our findings confirm the beneficial and genoprotective properties of PPP extracts and further studies on the bioactive compounds of Opuntia ficus-indica (L.) Mill. are recommended, as it constitutes a promising plant in pharmaceutical applications.
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Affiliation(s)
- Margarita Dormousoglou
- Department of Sustainable Agriculture (Former Department of Environmental Engineering), University of Patras, Seferi 2, GR-30100 Agrinio, Greece
| | - Ioanna Efthimiou
- Department of Sustainable Agriculture (Former Department of Environmental Engineering), University of Patras, Seferi 2, GR-30100 Agrinio, Greece
| | - Maria Antonopoulou
- Department of Sustainable Agriculture (Former Department of Environmental Engineering), University of Patras, Seferi 2, GR-30100 Agrinio, Greece
| | | | - Giulia Herbst
- Department of Chemical Engineering, Federal University of Paraná, Curitiba 81531-990, PR, Brazil
| | - Dimitris Vlastos
- Department of Biology, University of Patras, GR-26500 Patras, Greece
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Dormousoglou M, Efthimiou I, Antonopoulou M, Fetzer DL, Hamerski F, Corazza ML, Papadaki M, Santzouk S, Dailianis S, Vlastos D. Investigation of the Genotoxic, Antigenotoxic and Antioxidant Profile of Different Extracts from Equisetum arvense L. Antioxidants (Basel) 2022; 11:antiox11071393. [PMID: 35883882 PMCID: PMC9312020 DOI: 10.3390/antiox11071393] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 07/08/2022] [Accepted: 07/11/2022] [Indexed: 01/24/2023] Open
Abstract
The present study investigated the cyto-genotoxic and antigenotoxic effects of four different extracts of Equisetum arvense L. (common name: field horsetail) on human lymphocytes. Specifically, Soxhlet’s prepared extracts from E. arvense L., using different solvents (S1: methanol (MeOH)-, S2: ethanol (EtOH)-, S3: water-, and S4: ethanol/water (EtOH-W)-) were analyzed for (a) their total phenolic and flavonoid content (TPC and TFC, respectively), (b) their antioxidant activity (AA), via the DPPH, FRAP and ABTS assays, and (c) their cyto-genotoxic and/or protective efficiency against the mutagenic agent mitomycin C, via the Cytokinesis Block MicroNucleus assay. All extracts showed increased TPC, TFC, and AA values in almost all cases. S1, S3 and S4 demonstrated no cytotoxic potential, whereas S2 was cytotoxic only at the highest concentrations. Genotoxicity was not observed in the tested extracts. The highest antigenotoxic activity was observed for EtOH-W (S4) extract, which was found to be rich in flavonoids, flavonoid-O-glycosides, phytosterols, phenolic and fatty acids as well as in minerals and mainly in K, Ca, Mg, Si and P, as assessed by using various mass spectrometry techniques. Those findings confirm that E. arvense L. extracts could be valuable candidates for medicinal applications and pharmaceutical products, thus alleviating the effects of more conventional drugs.
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Affiliation(s)
- Margarita Dormousoglou
- Department of Environmental Engineering, University of Patras, Seferi 2, GR-30100 Agrinio, Greece; (M.D.); (I.E.); (M.A.); (M.P.)
| | - Ioanna Efthimiou
- Department of Environmental Engineering, University of Patras, Seferi 2, GR-30100 Agrinio, Greece; (M.D.); (I.E.); (M.A.); (M.P.)
- Hellenic Centre for Marine Research (HCMR), Institute of Marine Biology, Biotechnology and Aquaculture, Anavyssos, GR-19013 Athens, Greece
| | - Maria Antonopoulou
- Department of Environmental Engineering, University of Patras, Seferi 2, GR-30100 Agrinio, Greece; (M.D.); (I.E.); (M.A.); (M.P.)
| | - Damian L. Fetzer
- Department of Chemical Engineering, Federal University of Paraná, Curitiba 81531-990, Brazil; (D.L.F.); (F.H.); (M.L.C.)
| | - Fabiane Hamerski
- Department of Chemical Engineering, Federal University of Paraná, Curitiba 81531-990, Brazil; (D.L.F.); (F.H.); (M.L.C.)
| | - Marcos L. Corazza
- Department of Chemical Engineering, Federal University of Paraná, Curitiba 81531-990, Brazil; (D.L.F.); (F.H.); (M.L.C.)
| | - Maria Papadaki
- Department of Environmental Engineering, University of Patras, Seferi 2, GR-30100 Agrinio, Greece; (M.D.); (I.E.); (M.A.); (M.P.)
| | - Samir Santzouk
- Santzouk Samir and Co. General Partnership, PANAX, Chrissostomou Smirnis 14, GR-30100 Agios Konstantinos, Greece;
| | | | - Dimitris Vlastos
- Department of Biology, University of Patras, GR-26500 Patras, Greece;
- Correspondence: ; Tel.: +30-2610969239
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Gateva S, Jovtchev G, Angelova T, Dobreva A, Mileva M. The Anti-Genotoxic Activity of Wastewaters Produced after Water-Steam Distillation of Bulgarian Rosa damascena Mill. and Rosa alba L. Essential Oils. Life (Basel) 2022; 12:life12030455. [PMID: 35330206 PMCID: PMC8951631 DOI: 10.3390/life12030455] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 03/15/2022] [Accepted: 03/17/2022] [Indexed: 12/12/2022] Open
Abstract
The steam distillation of valuable rose essential oil from R. damascena Mill. and R. alba L. generates large volumes of wastewaters. Although such wastewaters are bio-pollutants, they contain valuable bioactive compounds. In this study we investigated the cytotoxic/genotoxic and anti-cytotoxic/anti-genotoxic potential of these products. We used cytogenetic methods for induction of chromosome aberrations and micronuclei in two different experimental test-systems: ahigher plant and human lymphocyte cultures. Different experimental schemes of treatment with the waste products showed that the genotoxic activity of wastewater from the distillation of oils from R. alba and R. damascena was low in both test–systems. Human lymphocytes showed a higher sensitivity to the products than plant cells. Both types of waste products manifested anti-genotoxic effect against N-methyl-N′-nitro-N-nitrosoguanidine, a direct mutagen. The wastewaters obtained from steam distillation of rose essential oil have cytoprotective/genoprotective effect and could decrease DNA damage. Data are promising for further use of these products in pharmacy and other areas of human life.
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Affiliation(s)
- Svetla Gateva
- Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (S.G.); (G.J.); (T.A.)
| | - Gabriele Jovtchev
- Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (S.G.); (G.J.); (T.A.)
| | - Tsveta Angelova
- Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (S.G.); (G.J.); (T.A.)
| | - Ana Dobreva
- Institute for Roses and Aromatic Plants, Agricultural Academy, 49 Osvobojdenie Blvd., 6100 Kazanlak, Bulgaria
- Correspondence: (A.D.); (M.M.); Tel.: +359-29793185 (M.M.)
| | - Milka Mileva
- The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 26 Acad. G. Bonchev Str., 1113 Sofia, Bulgaria
- Correspondence: (A.D.); (M.M.); Tel.: +359-29793185 (M.M.)
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Nagy S, Szigetvári Á, Ilkei V, Krámos B, Béni Z, Szántay C, Hazai L. Synthesis of aminal-type Lilium candidum alkaloids and lilaline; determination of their relative configuration by the concerted use of NMR spectroscopy and DFT conformational analysis. Tetrahedron 2021. [DOI: 10.1016/j.tet.2020.131827] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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Lemes SR, Chaves DA, Silva NJDA, Carneiro CC, Chen-Chen L, Almeida LMDE, Gonçalves PJ, Melo-Reis PRDE. Antigenotoxicity protection of Carapa guianensis oil against mitomycin C and cyclophosphamide in mouse bone marrow. AN ACAD BRAS CIENC 2017; 89:2043-2051. [PMID: 28678958 DOI: 10.1590/0001-3765201720150797] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Accepted: 04/15/2016] [Indexed: 01/26/2023] Open
Abstract
The aim of this study was to evaluate the possible protective of C. guianensis oil against MMC and CP, which are direct- and indirect-acting chemical mutagens, using the micronucleus test. Three experiments were performed. First the C. guianensis oil was co-administered to mice at doses of 250, 500 and 1000 mg/kg bw with 4 mg/kg bw MMC or 50 mg/kg bw CP. Second, the mutagenic drug (CP) was administered ip 50 mg/kg bw and after 6 and 12 hours 250 and 500 mg/kg bw of C. guianensis oil were administered. In the last, C. guianensis oil was administrated (250 and 500 mg/kg bw) during five days and after it was administered ip 50 mg/kg bw CP. The results obtained showed that the C. guianensis oil is not cytotoxic neither genotoxic to mouse bone marrow. Regarding the antimutagenic effect, all doses of C. guianensis oil were significantly (p < 0.05) effective in reducing the frequency of micronucleated polychromatic erythrocytes, when compared with MMC or CP alone. Based on these results, our results suggest that the C. guianensis oil shows medicinal potential as an antimutagenic agent, modulating the mutagenicity caused by both direct- and indirect-acting chemical mutagens, in a mammalian model.
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Affiliation(s)
- Susy R Lemes
- Laboratório de Estudos Experimentais e Biotecnológicos, Pontifícia Universidade Católica de Goiás/PUC, Rua 232, 128, 3º andar, Sala 5, 74605-010 Goiânia, GO, Brazil
| | - Dwight A Chaves
- Laboratório de Estudos Experimentais e Biotecnológicos, Pontifícia Universidade Católica de Goiás/PUC, Rua 232, 128, 3º andar, Sala 5, 74605-010 Goiânia, GO, Brazil
| | - Nelson J DA Silva
- Laboratório de Estudos Experimentais e Biotecnológicos, Pontifícia Universidade Católica de Goiás/PUC, Rua 232, 128, 3º andar, Sala 5, 74605-010 Goiânia, GO, Brazil
| | - Cristiene C Carneiro
- Departamento de Biologia Geral, Instituto de Ciências Biológicas, Universidade Federal de Goiás/UFG, Campus-II, Avenida Esperança, s/n, Campus Samambaia, 74690-900 Goiânia, GO, Brazil
| | - Lee Chen-Chen
- Departamento de Biologia Geral, Instituto de Ciências Biológicas, Universidade Federal de Goiás/UFG, Campus-II, Avenida Esperança, s/n, Campus Samambaia, 74690-900 Goiânia, GO, Brazil
| | - Luciane M DE Almeida
- Laboratório de Biotecnologia, Universidade Estadual de Goiás/UEG, Unidade Universitária de Ciências Exatas e Tecnológicas, Caixa Postal 459, 75132-903 Anápolis, GO, Brazil
| | - Pablo J Gonçalves
- Instituto de Física, Universidade Federal de Goiás/UFG, Campus-II, Avenida Esperança, s/n, Campus Samambaia, 74690-900 Goiânia, GO, Brazil
| | - Paulo R DE Melo-Reis
- Laboratório de Estudos Experimentais e Biotecnológicos, Pontifícia Universidade Católica de Goiás/PUC, Rua 232, 128, 3º andar, Sala 5, 74605-010 Goiânia, GO, Brazil
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Mammadov T, Deniz N, Rakhimzhanova A, Kılınçarslan Ö, Mammadov R. Studies on lilium species. INTERNATIONAL JOURNAL OF SECONDARY METABOLITE 2017. [DOI: 10.21448/ijsm.282978] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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