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

(R)-5-(2-((4-((4-(4-aminobutoxy)phenyl)amino)phenethyl)amino)-1-((tert-butyldimethylsilyl)oxy)ethyl)-8-(benzyloxy)quinolin-2(1H)-one