Electrochemical detection of antioxidant activities of 4-indolyl-5-oxo-6,6 (or 7,7) -dimethyl-1,4,5,6,7,8- hexahydroquinoline derivatives

Abstract

Antioxidants used in different medical and industrial fields in order to prevent and delay oxidative stress. They play a crucial role in the protecting biological systems against many diseases. 1,4-dihydropyridines are known as calcium channel modulators. Electrochemical techniques are simple, cheap and fast detection techniques and require small amounts of sample, so they offer advantages over commonly used analytical methods. Voltammetric methods have been applied to investigated the antioxidant activity of compounds in different fields. The proposed work is aimed at examining the electrochemical behavior of the 1,4-dihydropyridines by differential pulse voltammetry and hence the assessment of its antioxidant activity from the cathodic reduction peak of oxygen values. The peak current due to oxygen reduction was found to be proportional to the 1,4-dihydropyridines concentration of 0.1 - 0.5 mg/mL. The coefficient of antioxidant activity of 1,4-dihydropyridine derivatives were calculated and compared each other. Nifedipine used as a reference drug that is known as the calcium channel modulator and it is used to compare the antioxidant activities of 1,4-dihydropyridine-derived compounds.

Keywords

• Hexahydroquinoline derivatives
• nifedipine
• antioxidant activity
• differential pulse voltammetry

References

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