5-fluoro-6-methoxy-4H-benzo[1,4]oxazin-3-one

5-fluoro-6-hydroxy-4H-benzo[1,4]oxazin-3-one

5-fluoro-3,4-dihydro-2H-benzo[1,4]oxazin-6-ol

(S)-3-(5-fluoro-3,4-dihydro-2H-benzo[1,4]oxazin-6-yloxy)-pyrrolidine-1-carboxylic acid tert-butyl ester

(S)-3-[5-fluoro-4-(6-methoxy-5-methyl-pyridin-3-yl)-3,4-dihydro-2H-benzo[1,4]oxazin-6-yloxy]-pyrrolidine-1-carboxylic acid tert-butyl ester