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

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

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