| abstract |
The present invention provides the following formula (I): [Where: X is S; NX1; O; or NX1-CO; R1 is none or one of the substituents of Cl, Br, F, I, OH or alkyl, aryl or carboxyl group; R2 is absent or Cl; O—CH 2 —O; O—CH 3 ; F, diethylenediamine-CH 3 , NR 3 R 4, Br, I, OH, alkyl, aryl or carboxyl group, NO 2 , or One of the substituents of X1 is selected from H, C 2 H 4 Ph, OH, an alkyl group and an aryl group; R3 and R4 are independently H or an alkyl group containing 1 to 4 carbon atoms; -P is a peptide] To an enzyme substrate for detecting peptidase activity. |