1,3-Dihydro-5'-fluorospiro(2H-imidazo(4,5-b)pyridine-2,3'-(3H)indol)-2'(1'H)-one 5'-Fluoro-1,3-dihydrospiro(2H-imidazo(4,5-b)pyridine-2,3'-(3H)indol)-2'(1'H)-one 93500-49-3 Spiro(2H-imidazo(4,5-b)pyridine-2,3'-(3H)indol)-2'(1'H)-one, 1,3-dihydro-5'-fluoro-