methyl ((2S)-1-((2S)-2-(4-(10-chloro-6-(5,6-dihydro-4H-cyclopenta[d]thiazol-2-yl)-1-fluoro-6H-benzo[5,6][1,3]oxazino[3,4-a]indol-3-yl)-1H-imidazol-2-yl)pyrrolidin-1-yl)-3-methyl-1-oxobutan-2-yl)carbamate