1 6T8 N-((S)-3-(4-(aminomethyl)phenyl)-1-(((R)-4-guanidino-1-(5-hydroxy-1,3,2-dioxaborinan-2-yl)butyl)amino)-1-oxopropan-2-yl)benzamide 1.000 2 6A8 ((R)-1-((S)-3-(4-(aminomethyl)phenyl)-2-benzamidopropaneamido)-4-guanidinobutyl)boronic acid, cyclic double ester with glycerol 0.850