7-fluoro-2-(methyloxy)-8-{[(2S)-2-oxiranylmethyl]thio}-1,5-naphthyridine

(6R)-3-fluoro-6-(hydroxymethyl)-5,6-dihydro-8H-[1,4]thiazino[2,3,4-de]-1,5-naphthyridin-8-one

[(6R)-3-fluoro-8-oxo-5,6-dihydro-8H-[1,4]thiazino[2,3,4-de]-1,5-naphthyridin-6-yl]methyl methanesulfonate

1,1-dimethylethyl (1-{[(6R)-3-fluoro-8-oxo-5,6-dihydro-8H-[1,4]thiazino[2,3,4-de]-1,5-naphthyridin-6-yl]methyl}-4-piperidinyl)carbamate

(6R)-6-({4-[(2,3-dihydro[1,4]dioxino[2,3-c]pyridin-7-ylmethyl)amino]-1-piperidinyl}methyl)-3-fluoro-5,6-dihydro-8H-[1,4]thiazino[2,3,4-de]-1,5-naphthyridin-8-one