The novel derivatives glycyl - prolylamino - 7 - methyl - 4 - coumarin and method for measuring the enzymatic activity

摘要

P to measure the activity of the x - prolyl work - aminopeptidase, it is used for a new reagent of glycyl - prolylamino - 7 methyl - 4 coumarin or one of its salts with acids that are placed in contact with the enzyme in an aqueous medium, and it determines the amino - 7 methyl - 4 coumarin formed enzymatically. / p & & p & in particular, the invention is applicable to determining in the biological liquids which are useful for the diagnosis of the liver and the gastric cancer. / p