Ethyl 7-(4-(tert-butoxycarbonyl)piperazin-1-yl)-1-cyclopropyl-6-fluoro-2-methyl-4-oxo-1,2,3,4-tetrahydroquinoline-3-carboxylate 1g

Ethyl 7-(4-(tert-butoxycarbonyl)piperazin-1-yl)-1-cyclopropyl-6-fluoro-2-methyl-4-oxo-1,2,3,4-tetrahydroquinoline-3-carboxylate 1g