62037-45-0 L-Alaninamide, N-acetyl-L-alanyl-L-alanyl-L-prolyl-N-(4-methyl-2-oxo-2H-1-benzopyran-7-yl)- N-Ac-Ala-ala-pro-ala-amc N-Acetyl-alanyl-alanyl-prolyl-alanyl-amidomethylcoumarin