148168-23-4 H-D-Val-leu-lys 4-aminomethyl coumarin L-Lysinamide, D-valyl-L-leucyl-N-((2-oxo-2H-1-benzopyran-4-yl)methyl)- Val-leu-lys-amc Valyl-leucyl-lysyl-4-aminomethylcoumarin