Ethyl 7-(3-acetoxyazetidin-1-yl)-1-(6-amino-3,5-difluoropyridin-2-yl)-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylate 1g

Ethyl 7-(3-acetoxyazetidin-1-yl)-1-(6-amino-3,5-difluoropyridin-2-yl)-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylate 1g