5-((1R)-1-{[tert-butyl(dimethyl)silyl]oxy}-2-{[(1-{2-[2-(2-chlorophenyl)ethoxy]ethyl}-4-hydroxypiperidin-4-yl)methyl]amino}ethyl)-8-hydroxyquinolin-2(1H)-one

5-{(1R)-1-{[tert-butyl(dimethyl)silyl]oxy}-2-[({(3R)-1-[2-(2-phenylethoxy)ethyl]piperidin-3-yl}methyl)amino]ethyl}-8-hydroxyquinolin-2(1H)-one

5-[(R)-1-{[tert-butyl(dimethyl)silyl]oxy}-2-({1-[2-(2-phenylethoxy)ethyl]piperidin-4-yl}amino)ethyl]-8-hydroxyquinolin-2(1H)-one

N-[2-(4-{[(2R)-2-{[tert-butyl(dimethyl)silyl]oxy}-2-(8-hydroxy-2-oxo-1,2-dihydroquinolin-5-yl)ethyl]amino}piperidin-1-yl)ethyl]benzenesulfonamide

hydroxy-di-thiophen-2-yl-acetic acid (1S,2R,4S,7S)-7-{[3-(4-{[(R)-2-(tert-butyl-dimethyl-silanyloxy)-2-(8-hydroxy-2-oxo-1,2-dihydro-quinolin-5-yl)-ethylamino]-methyl}-phenoxy)-propyl]-methyl-amino}-bicyclo[2.2.1]hept-2-yl ester