| abstract |
The present invention relates to an enzymatic substrate for the detection in microorganisms of a peptidase activity of formula (I) below: wherein: X represents S; NX1; O; NX1-CO □ R1 represents nothing, or one of the following substituents: Cl, Br, F, I, OH, an alkyl, aryl, carboxyl group, □ R2 represents nothing or one of the following substituents: Cl; O-CH 2 -O; O-CH3; F, diethylenediamine-CH3, NR3R4, Br, I, OH, an alkyl, aryl, carboxyl group. X1 is chosen from: H, C2H4Ph, OH, an alkyl group, an aryl group, and R3 and R4 independently represent H or a group alkyl having 1 to 4 carbon atoms □ P is a peptide |