Yazar "Cikrikci, Kubra" seçeneğine göre listele

Listeleniyor 1 - 2 / 2
  • Küçük Resim Yok
    Öğe
    1-Alkyl-1H-Benzimidazolium Sulfonates as Non-Competitive Inhibitors of Polyphenol Oxidase
    (Wiley, 2026) Ergun, Adem; Cikrikci, Kubra; Gencer, Nahit; Arslan, Oktay; Uslu, Harun; Goktas, Bunyamin; Karatas, Mert Olgun
    Polyphenol oxidase (PPO) has been the subject of many inhibition studies due to its presence in many species, causing enzymatic browning in fruits and vegetables, and its pigmentation role in mammalian species. In the present study, the inhibitory properties of twelve 1-alkyl-1H-benzimidazolium sulfonates and two 1-alkyl-1H-benzimidazolium iodides on PPO activity have been investigated. The PPO enzyme was purified from banana using Sepharose 4B-tyrosine-p-aminobenzoic acid affinity gel chromatography. The effects of 14 different synthesized benzimidazole derivatives on the PPO enzyme were investigated, and they were found to significantly inhibit the enzyme in question. When ADME predictions were examined, it was seen that all compounds that include methylbenzenesulfonate structure showed good pharmacokinetic properties; only compounds 3a and 3b, which contain iodide, violated the Ghose rules. These compounds, which were effective at low concentrations, may serve as promising lead molecules for the development of PPO inhibitors with potential applications in food preservation, cosmetic formulations, and pharmaceutical research, pending further in vivo and formulation-based studies.
  • Küçük Resim Yok
    Öğe
    Microwave-assisted synthesis of 1-substituted-1H-benzimidazolium salts: Non-competitive inhibition of human carbonic anhydrase I and II
    (Wiley-V C H Verlag Gmbh, 2019) Karlik, Ozgul; Gencer, Nahit; Karatas, Mert O.; Ergun, Adem; Cikrikci, Kubra; Arslan, Oktay; Alici, Bulent
    A series of 1-substituted-1H-benzimidazolium p-toluenesulfonate salts were synthesized in good yields by the reaction of 1-substituted benzimidazole derivatives and p-toluenesulfonic acid under microwave irradiation. Two iodide salts were synthesized by the anion exchange reaction of the corresponding p-toluenesulfonate salt and NaI. All compounds were characterized by H-1 NMR, C-13 NMR, IR, LC-MS spectroscopic methods, and elemental analyses. The crystal structure of 1-methoxyethyl-1H-benzimidazolium p-toluenesulfonate 2d showed that cation and anion are interconnected by N-H center dot center dot center dot O and C-H center dot center dot center dot O hydrogen bonds. All compounds were examined as inhibitor of human carbonic anhydrase (hCA) I and II, and all of them inhibited hCA I and hCA II. Kinetic investigation results revealed that these compounds inhibit hCA I and hCA II in a non-competitive manner. The iodide salts had higher inhibitory activity than their corresponding p-toluenesulfonate salts.