tert-butyl N6-(((9H-fluoren-9-yl)methoxy)carbonyl)-N2-((benzyloxy)carbonyl)-L-phenylalanylglycyl-L-lysinate, , , , tert-butyl N6-(((9H-fluoren-9-yl)methoxy)carbonyl)-N2-((benzyloxy)carbonyl)-L-phenylalanylglycyl-L-lysinate,