3-((8-((3-((3-(2,3-bis(tert-butoxycarbonyl)guanidino)benzyl)oxy)-5-(isopentyloxy)benzyl)oxy)-2-oxoquinolin-1(2H)-yl)methyl)phenyl acetate

4-(2-(8-((3-((3-(2,3-bis(tert-butoxycarbonyl)guanidino)benzyl)oxy)-5-(isopentyloxy)benzyl)oxy)-2-oxoquinolin-1(2H)-yl)ethyl)phenyl acetate