3,10-dibromo-6-(5,6-dihydro-4H-cyclopenta[b]thiophen-2-yl)-1-fluoro-12,12a-dihydro-6H-benzo[5,6][1,3]oxazino[3,4-a]indole

3,10-dibromo-6-(5,6-dihydro-4H-cyclopenta[b]thiophen-2-yl)-1-fluoro-6H-benzo[5,6][1,3]oxazino[3,4-a]indole