All Stories

  1. Comprehensive UHPLC–Orbitrap–MS Profiling of Phloroglucinol α-Pyrones in Helichrysum italicum (Roth) G. Don (Asteraceae)

    Article • Plants, August 2026, MDPI AG

    Paraskev Nedialkov

  2. (±)-2-Chloro-N-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-2-phenylacetamide

    Article • Molbank, August 2026, MDPI AG

    Paraskev Nedialkov

  3. Comprehensive UHPLC–Orbitrap–MS Profiling of Phloroglucinol α-Pyrones in <em>Helichrysum italicum</em> (Roth) G. Don (Asteraceae)

    Article • July 2026, MDPI AG

    Paraskev Nedialkov

  4. A Synthesis of 4-Quinolone N-Oxides and NMR Evidence of Their Protonation-Assisted Enolisation

    Article • Molecules, May 2026, MDPI AG

    Paraskev Nedialkov

  5. Biologically active flavonoids and saponins from the genus Chenopodium

    Article • Pharmacia, May 2026, Pensoft Publishers

    Paraskev Nedialkov

  6. Effects of annulatophenone, annulatophenonoside, and acetylannulatophenonoside on brain synaptosomes and small cerebral vessels

    Article • Pharmacia, May 2026, Pensoft Publishers

    Paraskev Nedialkov

  7. In vitro evaluation of the effects of flavonoids and saponins from Chenopodium bonus-henricus L. on non-enzyme-induced lipid peroxidation in isolated rat liver microsomes

    Article • Pharmacia, April 2026, Pensoft Publishers

    Paraskev Nedialkov

  8. Synthesis, Antimicrobial and Anti-Inflammatory Activity of a Novel Styrylquinolinium Iodide Bearing a Naphthalene Moiety

    Article • Crystals, February 2026, MDPI AG

    Paraskev Nedialkov

  9. In vivo evaluation of purified methanolic extract and medicagenic acid saponin from Chenopodium bonus-henricus L. roots in a rotenone-induced Parkinson’s disease model

    Article • Pharmacia, December 2025, Pensoft Publishers

    Paraskev Nedialkov

  10. Screening of Cytotoxic and Genotoxic Activities of Subcritical Water Extracts from R. damascena and R. alba Flowers

    Article • Molecules, November 2025, MDPI AG

    Paraskev Nedialkov

  11. Correction: Milusheva et al. In Silico, In Vitro, and Ex Vivo Biological Activity of Some Novel Mebeverine Precursors. Biomedicines 2023, 11, 605

    Article • Biomedicines, October 2025, MDPI AG

    Paraskev Nedialkov

  12. Polyprenylated Acylphloroglucinols from Hypericum rochelii and Hypericum olympicum—Cytotoxic Effects on Non-Tumorigenic Cell Lines and Antibacterial Potential

    Article • Pharmaceuticals, October 2025, MDPI AG

    Paraskev Nedialkov

  13. Phenolic Compounds from Hypericum cerastoides (Spach) N. Robson: Dereplication via UHPLC-HRMS/MS, Isolation, Identification, and Preliminary Biological Evaluation Focusing on Radical-Scavenging, Anti-α-Glucosidase, and Pro-Lipase Activities

    Article • Metabolites, September 2025, MDPI AG

    Paraskev Nedialkov

  14. Phytochemical Characterization and Anti-Biofilm Activity of Primula veris L. Roots

    Article • Molecules, April 2025, MDPI AG

    Paraskev Nedialkov

  15. Cytotoxic acylphloroglucinols from the aerial parts of Hypericum hirsutum L. (Hypericaceae)

    Article • Pharmacia, March 2025, Pensoft Publishers

    Paraskev Nedialkov

  16. Flavonoids and Saponins from Two Chenopodium Species (C. foliosum Asch. and C. bonus-henricus L.)—Preliminary Evaluation for hMAO-A/B, Neuroprotective Activity, and Validated UHPLC-HRMS Quantification of Ethanolic Extract from C. foliosum

    Article • Molecules, February 2025, MDPI AG

    Paraskev Nedialkov

  17. N-(4-Methoxyphenethyl)-2-oxo-2H-chromene-3-carboxamide

    Article • Molbank, February 2025, MDPI AG

    Paraskev Nedialkov

  18. Synthesis, Anti-Inflammatory Activity, and Docking Simulation of a Novel Styryl Quinolinium Derivative

    Article • Applied Sciences, December 2024, MDPI AG

    Distinguished Professor Ghodsi Mohammadi Ziarani, Paraskev Nedialkov

  19. Phenolic Constituents from Hypericum aucheri Jaub et. Spach—Isolation, Identification, and Preliminary Evaluation for hMAO-A/B and Neuroprotective Activity

    Article • Chemistry, November 2024, MDPI AG

    Paraskev Nedialkov

  20. Synthesis of Novel Sulfonamide Derivatives Featuring 1-(Methylsulfonyl)-4-(2,3,4-trimethoxybenzyl)piperazine Core Structures

    Article • Molbank, September 2024, MDPI AG

    Paraskev Nedialkov

  21. Attempted Synthesis of the Pseudomonas aeruginosa Metabolite 2-Benzyl-4(1H)-quinolone and Formation of 3-Methylamino-2-(2-nitrobenzoyl)-4H-naphthalen-1-one as an Unexpected Product

    Article • Molbank, August 2024, MDPI AG

    Paraskev Nedialkov

  22. Concise Synthesis of Pseudane IX, Its N-Oxide, and Novel Carboxamide Analogs with Antibacterial Activity

    Article • Molecules, August 2024, MDPI AG

    Paraskev Nedialkov

  23. 2-Amino-N-Phenethylbenzamides for Irritable Bowel Syndrome Treatment

    Article • Molecules, July 2024, MDPI AG

    Paraskev Nedialkov

  24. Inula salicina L.: Insights into Its Polyphenolic Constituents and Biological Activity

    Article • Pharmaceuticals, June 2024, MDPI AG

    Paraskev Nedialkov

  25. (±)-R,S-2-Chloro-N-(4-methyl-2-oxo-2H-chromen-7-yl)-2-phenylacetamide

    Article • Molbank, June 2024, MDPI AG

    Paraskev Nedialkov

  26. UHPLC-HRMS-based profiling and simultaneous quantification of the hydrophilic phenolic compounds from the aerial parts of Hypericum aucheri Jaub. & Spach (Hypericaceae)

    Article • Pharmacia, April 2024, Pensoft Publishers

    Paraskev Nedialkov

  27. N-(3-chlorophenethyl)-4-nitrobenzamide

    Article • Molbank, April 2024, MDPI AG

    Paraskev Nedialkov

  28. In Silico and Chromatographic Methods for Analysis of Biotransformation of Prospective Neuroprotective Pyrrole-Based Hydrazone in Isolated Rat Hepatocytes

    Article • Molecules, March 2024, MDPI AG

    Paraskev Nedialkov, Alexander Zlatkov

  29. N-(2,2-diphenylethyl)-4-nitrobenzamide

    Article • Molbank, February 2024, MDPI AG

    Paraskev Nedialkov

  30. Novel Flurbiprofen Derivatives as Antioxidant and Anti-Inflammatory Agents: Synthesis, In Silico, and In Vitro Biological Evaluation

    Article • Molecules, January 2024, MDPI AG

    Paraskev Nedialkov

  31. Novel Anthranilic Acid Hybrids—An Alternative Weapon against Inflammatory Diseases

    Article • Pharmaceuticals, November 2023, MDPI AG

    Paraskev Nedialkov

  32. Naturally Occurring Simple Oxygenated Benzophenones: Structural Diversity, Distribution, and Biological Properties

    Article • Diversity, September 2023, MDPI AG

    Paraskev Nedialkov

  33. Synthesis, Molecular Docking, and Biological Evaluation of Novel Anthranilic Acid Hybrid and Its Diamides as Antispasmodics

    Article • International Journal of Molecular Sciences, September 2023, MDPI AG

    Paraskev Nedialkov

  34. 2-(2-Fluoro-[1,1′-biphenyl]-4-yl)-N-(4-methyl-2-oxo-2H-chromen-7-yl)propanamide

    Article • Molbank, July 2023, MDPI AG

    Paraskev Nedialkov

  35. (±)-N-(1,2-Bis(3,4-dimethoxyphenyl)ethyl)-2-(2-fluoro-[1,1′-biphenyl]-4-yl)propanamide

    Article • Molbank, June 2023, MDPI AG

    Paraskev Nedialkov

  36. Synthesis, Molecular Docking, Molecular Dynamics Studies, and In Vitro Biological Evaluation of New Biofunctional Ketoprofen Derivatives with Different N-Containing Heterocycles

    Article • Processes, June 2023, MDPI AG

    Paraskev Nedialkov

  37. Anticancer Podophyllotoxin Recovery from Juniper Leaves at Atmospheric and High Pressure Using Eco-Friendly Solvents

    Article • Plants, March 2023, MDPI AG

    Paraskev Nedialkov

  38. Cytotoxic and Antibacterial Prenylated Acylphloroglucinols from Hypericum olympicum L.

    Article • Plants, March 2023, MDPI AG

    Paraskev Nedialkov

  39. In Silico, In Vitro, and Ex Vivo Biological Activity of Some Novel Mebeverine Precursors

    Article • Biomedicines, February 2023, MDPI AG

    Paraskev Nedialkov

  40. Outstanding Antibacterial Activity of Hypericum rochelii—Comparison of the Antimicrobial Effects of Extracts and Fractions from Four Hypericum Species Growing in Bulgaria with a Focus on Prenylated Phloroglucinols

    Article • Life, January 2023, MDPI AG

    Paraskev Nedialkov

  41. Novel artesunate–pyrimidine-based hybrids with anticancer potential against multidrug-resistant cancer cells

    Article • New Journal of Chemistry, January 2023, Royal Society of Chemistry

    Paraskev Nedialkov, Dr Mario Zlatovic

  42. Synthesis, In Vitro Anti-Inflammatory Activity, and HRMS Analysis of New Amphetamine Derivatives

    Article • Molecules, December 2022, MDPI AG

    Paraskev Nedialkov

  43. Beyond Traditional Use of Alchemilla vulgaris: Genoprotective and Antitumor Activity In Vitro

    Article • Molecules, November 2022, MDPI AG

    Paraskev Nedialkov

  44. Synthesis, In Silico, and In Vitro Biological Evaluation of New Furan Hybrid Molecules

    Article • Processes, October 2022, MDPI AG

    Paraskev Nedialkov

  45. In Vitro Study of the Biological Potential of Wastewater Obtained after the Distillation of Four Bulgarian Oil-Bearing Roses

    Article • Plants, April 2022, MDPI AG

    Paraskev Nedialkov

  46. Redox-Modulating Capacity and Antineoplastic Activity of Wastewater Obtained from the Distillation of the Essential Oils of Four Bulgarian Oil-Bearing Roses

    Article • Antioxidants, October 2021, MDPI AG

    Paraskev Nedialkov

  47. Innovative Biochemometric Approach to the Metabolite and Biological Profiling of the Balkan Thistle (Cirsium appendiculatum Griseb.), Asteraceae

    Article • Plants, September 2021, MDPI AG

    Paraskev Nedialkov

  48. UHPLC-Orbitrap-MS Tentative Identification of 51 Oleraceins (Cyclo-Dopa Amides) in Portulaca oleracea L. Cluster Analysis and MS2 Filtering by Mass Difference

    Article • Plants, September 2021, MDPI AG

    Paraskev Nedialkov, Dr Yulian T Voynikov

  49. Simultaneous quantification of the major flavonoids from wild spinach by UHPLC-HRMS and their neuroprotective effects in a model of H2O2-induced oxidative stress on SH-SY5Y cells

    Article • Pharmacia, September 2021, Pensoft Publishers

    Paraskev Nedialkov

  50. UHPLC-Orbitrap-HRMS Identification of 51 Oleraceins (Cyclo-Dopa Amides) in Portulaca oleracea L. Cluster Analysis and MS2 Filtering by Mass Difference

    Article • September 2021, MDPI AG

    Paraskev Nedialkov, Dr Yulian T Voynikov

  51. Junipers of Various Origins as Potential Sources of the Anticancer Drug Precursor Podophyllotoxin

    Article • Molecules, August 2021, MDPI AG

    Paraskev Nedialkov

  52. Validated UHPLC-HRMS method for simultaneous quantification of flavonoid contents in the aerial parts of Chenopodium bonus-henricus L. (wild spinach)

    Article • Pharmacia, August 2021, Pensoft Publishers

    Paraskev Nedialkov

  53. Saponins from the roots of Chenopodium bonus-henricus L. with neuroprotective and anti-α-glucosidase activities

    Article • Pharmacia, April 2021, Pensoft Publishers

    Paraskev Nedialkov

  54. A New Flavonol Acylglucoside from Inula aschersoniana Janka Var. aschersoniana

    Article • April 2021, Prof. Marin Drinov Academic Publishing House

    Paraskev Nedialkov

  55. Ultra-high-performance liquid chromatography – high-resolution mass spectrometry profiling and hepatoprotective activity of purified saponin and flavonoid fractions from the aerial parts of wild spinach (Chenopodium bonus-henricus L.)

    Article • Zeitschrift für Naturforschung C, November 2020, De Gruyter

    Paraskev Nedialkov

  56. Neuroprotective, anti-α-glucosidase and prolipase active flavonoids from Good King Henry (Chenopodium bonus-henricus L.)

    Article • Natural Product Research, June 2020, Taylor & Francis

    Paraskev Nedialkov

  57. Hepatoprotective activity of a purified methanol extract and saponins from the roots of Chenopodium bonus-henricus L.

    Article • Zeitschrift für Naturforschung C, November 2019, De Gruyter

    Paraskev Nedialkov, Paraskev Nedialkov

  58. UHPLC-HRMS based flavonoid profiling of the aerial parts of Chenopodium foliosum Asch. (Amaranthaceae)

    Article • Natural Product Research, November 2019, Taylor & Francis

    Paraskev Nedialkov

  59. Phytotherapeutic approaches to treatment and prophylaxis in pediatric practice

    Article • Pharmacia, November 2019, Pensoft Publishers

    Paraskev Nedialkov

  60. A comparative study of UHPLC/Orbitrap MS metabolomics profiles and biological properties of Asphodeline taurica from Bulgaria and Turkey

    Article • Journal of Pharmaceutical and Biomedical Analysis, May 2019, Elsevier

    Paraskev Nedialkov

  61. New Δ-tocotrienol derivatives from Colombian propolis

    Article • Natural Product Research, April 2019, Taylor & Francis

    Milena Popova, Boryana Trusheva, Vassya Bankova, Paraskev Nedialkov, Orlando Torres_García

  62. Synthesis of Two Novel Homologous Polyphosphoesters Containing Aminophosphonate Units and Cytotoxicity of Some Low-Molecular and Polymeric Aminophosphonate Derivatives

    Article • Advances in Materials Science and Engineering, August 2018, Hindawi Publishing Corporation

    Paraskev Nedialkov

  63. Saponins from the roots of Chenopodium bonus-henricus L.

    Article • Natural Product Research, June 2018, Taylor & Francis

    Paraskev Nedialkov

  64. Cytotoxic prenylated acylphloroglucinols from Hypericum annulatum

    Article • Fitoterapia, June 2018, Elsevier

    Paraskev Nedialkov

  65. Isofraxisecoside, a new coumarin-secoiridoid from the stem bark of Fraxinus xanthoxyloides

    Article • Natural Product Research, May 2018, Taylor & Francis

    aldjia hadroug, Paraskev Nedialkov

  66. Identification of phenolic components via LC–MS analysis and biological activities of two Centaurea species: C. drabifolia subsp. drabifolia and C. lycopifolia

    Article • Journal of Pharmaceutical and Biomedical Analysis, February 2018, Elsevier

    Paraskev Nedialkov

  67. Chenopodium bonus - henricus L. – A source of hepatoprotective flavonoids

    Article • Fitoterapia, April 2017, Elsevier

    Paraskev Nedialkov

  68. Pharmacognostic investigations of the aerial parts of Chenopodium foliosum Asch. and radical-scavenging activities of five flavonoids isolated from methanol extract of the plant

    Article • Pharmacognosy Journal, June 2014, EManuscript Services

    Paraskev Nedialkov

  69. Cytoprotective and antioxidant effects of phenolic compounds from Haberlea rhodopensis Friv. (Gesneriaceae)

    Article • Pharmacognosy Magazine, January 2013, Medknow

    Paraskev Nedialkov

  70. Cytotoxic Effects and Multidrug Resistance Modulation by Five Benzophenones and a Xanthone Isolated fromHypericum AnnulatumMoris SUBSP.Annulatum

    Article • Biotechnology & Biotechnological Equipment, January 2013, Taylor & Francis

    Paraskev Nedialkov

  71. In vitro investigation of the antiproliferative and proapoptotic effects of hyperatomarin – a bicyclic prenylated acylphloroglucinol from Hypericum annulatum Moris subsp. annulatum against human tumor and endothelial cells

    Article • journal of Pharmaceutical Technology and Drug Research, January 2012, Herbert Publications PVT LTD

    Dr Margarita Guenova, Paraskev Nedialkov

  72. Benzophenones and flavonoids from Hypericum maculatum and their antioxidant activities

    Article • Natural Product Research, November 2011, Taylor & Francis

    Paraskev Nedialkov

  73. Elegaphenone and 7-epi-clusianone, the major cytotoxic constituents ofHypericum elegans

    Article • Natural Product Research, October 2011, Taylor & Francis

    Paraskev Nedialkov

  74. Flavonol glycosides from Chenopodium foliosum Asch

    Article • Phytochemistry Letters, September 2011, Elsevier

    Paraskev Nedialkov

  75. Radical scavenging and antioxidant activities of methanolic extracts fromHypericumspecies growing in Bulgaria

    Article • Pharmacognosy Magazine, January 2010, Medknow

    Paraskev Nedialkov

  76. BenzophenoneO-glycosides fromHypericum elegans

    Article • Natural Product Research, September 2009, Taylor & Francis

    Paraskev Nedialkov

  77. Cytotoxic effects of hyperatomarin, a prenylated phloroglucinol from Hypericum annulatum Moris subsp. annulatum, in a panel of malignant cell lines

    Article • Phytomedicine, November 2008, Elsevier

    Paraskev Nedialkov

  78. A new isocoumarin fromHypericum annulatum

    Article • Natural Product Research, October 2007, Taylor & Francis

    Paraskev Nedialkov

  79. Flavonoids and a xanthone from Hypericum umbellatum (Guttiferae)

    Article • Biochemical Systematics and Ecology, February 2007, Elsevier

    Paraskev Nedialkov

  80. Cytoprotective Effects of 5 Benzophenones and a Xanthone from Hypericum annulatum in Models of Epirubicin-Induced Cytotoxicity: SARAnalysis and Mechanistic Investigations

    Article • Medicinal Chemistry, July 2006, Bentham Science Publishers

    Paraskev Nedialkov

  81. Effect of benzophenones from Hypericum annulatum on carbon tetrachloride-induced toxicity in freshly isolated rat hepatocytes

    Article • Redox Report, February 2006, Maney Publishing

    Paraskev Nedialkov

  82. Simultaneous determination of benzophenones and gentisein inhypericum annulatum moris by high-performance liquid chromatography

    Article • Phytochemical Analysis, January 2006, Wiley

    Paraskev Nedialkov

  83. Two benzophenone O-arabinosides and a chromone from Hypericum annulatum

    Article • Phytochemistry, April 2002, Elsevier

    Paraskev Nedialkov

  84. Benzophenone O -glucoside, a biogenic precursor of 1,3,7-trioxygenated xanthones in Hypericum annulatum

    Article • Phytochemistry, August 2001, Elsevier

    Paraskev Nedialkov

  85. Mangiferin and isomangiferin in some Hypericum species

    Article • Biochemical Systematics and Ecology, September 1998, Elsevier

    Paraskev Nedialkov