| abstract |
Disclosure of Invention Technical Problem [8] The present invention relates to a novel compound which inhibits progress of neuronal dysfunction by protecting the chronic progression of Parkinson's disease or inhibiting dopaminergic neurons from its pathogen, prolongs the period to the L- dopa administration period, Compound. ≪ / RTI > The quinolone compound of the present invention is represented by the formula (1). [Wherein, R 1 represents hydrogen, etc., R 2 represents hydrogen, etc., R 3 represents such a substituted or unsubstituted phenyl group, R 4 denotes a halogen, etc., R 5 represents hydrogen, etc., R 6 represents hydrogen or the like, and R 7 represents hydrogen or the like] |