(R)-5-(2-((4-((2'-(aminomethyl)-6-methoxy-[1,1'-biphenyl]-3-yl)amino)phenethyl)amino)-1-hydroxyethyl)-8-hydroxyquinolin-2(1H)-one

N-{2-[4-(3-(4-aminomethylphenyl)-4-methoxyphenyl)aminophenyl]ethyl}-(R)-2-hydroxy-2-(8-hydroxy-2(1H)-quinolinon-5-yl)ethylamine

5-[(R)-2-(2-{4-[4-(2-amino-ethoxy)-phenylamino]-phenyl}-ethylamino)-1-hydroxy-ethyl]-8-hydroxy-1H-quinolin-2-one

5-[(R)-2-(2-{4-[4-(3-amino-propoxy)-phenylamino]-phenyl}-ethylamino)-1-hydroxy-ethyl]-8-hydroxy-1H-quinolin-2-one

5-[(R)-2-(2-{4-[4-(4-amino-butoxy)-phenylamino]-phenyl}-ethylamino)-1-hydroxy-ethyl]-8-hydroxy-1H-quinolin-2-one