申请人:Fabrega Olivier
公开号:US20120122135A1
公开(公告)日:2012-05-17
The present invention relates to the use of a compound of the following formula (I), as an enzyme substrate for the detection of a peptidase activity or as a pH indicator:
according to which:
Y
1
is a peptide, H or an alkyl;
W
1
, W
2
, W
3
and W
4
are independently H, Br, Cl, F, I, alkyl, alkoxy, thiomethyl, perfluoroalkyl, nitro, cyano, carboxyl (including the esters or amides thereof) or any combination thereof;
n=0, 1 or 2;
U is N or N
+
R and V is CZ
6
N or N
+
R or else V is N or N
+
R and U is CZ
6
;
R is H, alkyl, aralkyl, aryl, alkanoyl or alkylsulfonyl;
Z
1
, Z
2
, Z
3
, Z
4
and Z
5
are independently H, Br, Cl, F, I, alkyl, aryl, alkoxy, perfluoroalkyl, nitro, cyano, carboxyl, sulfonyl, including the carboxyl or sulfonyl esters or amides,
and salts thereof.