Novel compounds for detecting the presence of hydrolytic analytes in a test sample

摘要

A novel compound useful in detecting leukocytes, esterase and protease in a test sample. The compound has the structure <IMAGE> in which: A is an acid residue, R is lower alkyl, aryl, carboxyl, carboxyl ester, amido or cyano, R* is H or lower alkyl, and X is O, S, or NR', in which R' is H, lower alkyl or aryl.