benzyl [2-[({4-[(3R,4R,5S)-3-amino-4-hydroxy-5-methylpiperidin-1-yl]pyridin-3-yl}amino)carbonyl]-7-(4-methyl-3-oxopiperazin-1-yl)quinolin-3-yl]carbamate

ethyl 3-{[(benzyloxy)carbonyl]amino}-7-bromoquinoline-2-carboxylate

tert-butyl (4R)-4-((1R,2R)-3-[(4R)-4-benzyl-2-oxo-1,3-oxazolidin-3-yl]-1-{[tert-butyl(dimethyl)silyl]oxy}-2-methyl-3-oxopropyl)-2,2-dimethyl-1,3-oxazolidine-3-carboxylate

tert-butyl (4R)-4-((1R,2S)-1-{[tert-butyl(dimethyl)silyl]oxy}-3-hydroxy-2-methylpropyl)-2,2-dimethyl-1,3-oxazolidine-3-carboxylate

tert-butyl (4R)-4-((1R,2S)-3-azido-1-{[tert-butyl(dimethyl)silyl]oxy}-2-methylpropyl)-2,2-dimethyl-1,3-oxazolidine-3-carboxylate