Synthesis of Some New Spiropyranoquinolines and Evaluation of Their Free Radical Scavenging Activity
作者:Vassiliki Panteleon、Ioannis K. Kostakis、Panagiotis Marakos、Nicole Pouli、Ioanna Andreadou
DOI:10.1248/cpb.57.446
日期:——
preparation of some new spiro-substituted 4-hydroxypyranoquinolinones and their corresponding dihydropyrano cis-diols is described. The freeradical scavenging activity of the compounds was determined by means of their interaction with the stablefreeradical 1,1-diphenyl-2-picrylhydrazyl (DPPH) and the superoxide anions generated by the enzymic xanthine-xanthine oxidase system. The spiroadamatylpyranoquinolinone
A series of novel spiroadamantyl- and spirocyclical substituted pyranoquinolin-2-ones were synthesized and the conformation of the pyran ring was investigated. The free radical scavenging activity of the synthesized compounds was determined by their interaction with the stable free radical 1,1-diphenyl-2-picrylhydrazyl (DPPH). All compounds tested scavenged the DPPH radical and among them derivatives possessing extended conjugation showed the highest activity.