Synthesis of 2-substituted 8-propargyloxyquinoline derivatives and determination of their antioxidant, antibacterial, and DNA binding activities

Authors : Ayşegül Gümüş, Veysi Okumuş, Selçuk Gümüş

Pages : 1358-1369

View : 12 | Download : 9

Publication Date : 9999-12-31

Article Type : Makaleler

Abstract :  2-Substituted 8-propargyloxyquinoline derivatives have been synthesized from 2-substituted-8-hydroxyquinolines by O-propargylation method (30%-98% yields). The newly synthesized compounds were tested for in vitro antioxidant activities such as DPPH radical scavenging, ferrous chelating, and reducing power activities. The maximum radical scavenging (46.5%) and reducing power activities were obtained from 1 and maximum ferrous chelating effect was obtained from 6 (72.1%) at the concentration of 500 μ μ g/mL. To indicate DNA binding activity of the complexes calf thymus DNA was used. The compounds were also evaluated for their antimicrobial activity against three gram-positive and three gram-negative bacteria. Compounds 3 and 5 exhibited antibacterial activity against all tested gram-positive bacteria.
Keywords : Quinoline, propargyloxyquinoline, antioxidant, antibacterial, DNA binding activity