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    The enzyme kinetic studies, DNA protection and antioxidant activities of furan/ thiophene-2-carboxamide derivatives
    (Ibrahim DEMIRTAS, 2024) Çakmak, Sükriye; Yenigün, Semiha; Ozen, Tevfik
    Three furan and/or thiophene-2-carboxamide compounds, namely N-(furan-2-ylmethyl)thiophene-2-carboxamide (1), N-(furan-2-carbonyl)furan-2-carboxamide (2), and N-(Thiophene-2-ylmethyl)furan-2-carboxamide (3) were investigated the enzyme kinetic studies by urease, acetylcholinesterase (AChE), and butyrylcholinesterase (BChE). The inhibition constant (Ki) of Compound (CPD)3 by AChE was determined as 0.10 mM, and the Ki value by BChE was determined as 0.07 mM. In comparison, the Ki value of CPD1 by urease was determined as 0.10 mM. These CPDs were examined for antioxidant activity by the DPPH? scavenging method. CPD3 exhibited 98.93% DPPH scavenging activity compared to ascorbic acid, the positive control group. Furthermore, the DNA-protective activities of the compounds were investigated, and the DNA protection activity of CPD1 was observed to be 78%. The findings suggest that thiophene/furan carboxy amide-containing CPD1 and CPD3 might be exploited as potential structures for evaluating pharmaceuticals with greater potency.