10-Fluoro-1,2,3,3a,4,5-hexahydro-6H-indolo(3,2,1-de)(1,5)naphthyridin-6-one 65285-60-1 6H-Indolo(3,2,1-de)(1,5)naphthyridin-6-one, 1,2,3,3a,4,5-hexahydro-10-fluoro-