4-(8-fluoro-6-oxo-3,4,5,6-tetrahydro-1H-azepino[5,4,3-cd]indol-2-yl)benzaldehyde is a pharmaceutical intermediate for the synthesis of Rucaparib, an inhibitor of poly-ADP ribose polymerase-1 (PARP-1) for the treatment of cancer.
Multkilogram Scale-Up of a Reductive Alkylation Route to a Novel PARP Inhibitor.
 A.T.Gillmore, et al, Org. Process Res. Dev., 2012, 16(12), pp 1897-1904.