Inhibition of glutathione transferase by haloenol lactones
First Claim
Patent Images
1. A compound having the formula:
- ##STR5## in which;
Ar is an aryl group;
R1 and R2 ;
a) together form a double bond between carbon atoms 1 and 2;
b) together form an epoxy group between carbon atoms 1 and 2;
orc) are the same or different and are independently selected from the group consisting of H, OH, glutathione thioether, glutathione-S-oxide thioether, and glutathione-S,S-dioxide thioether;
R3 is selected from the group consisting of H, OH, glutathione thioether, glutathione-S-oxide thioether, and glutathione-S,S-dioxide thioether; and
Y is a haloenol lactone.
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Abstract
This invention relates to novel haloenol lactone compounds. These compounds have the following general structure: ##STR1## in which Ar is an aryl group and Y is a haloenol lactone moiety. The compounds of the invention are useful for the specific measurement of particular isoenzymes of glutathione S-transferase. Measurement of glutathione S-transferase isoenzymes has importance in diagnostic medicine. The compounds of the invention are also useful for treatment of drug resistance in cancer and for preventing herbicide resistance in plants.
7 Citations
21 Claims
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1. A compound having the formula:
- ##STR5## in which;
Ar is an aryl group;R1 and R2 ; a) together form a double bond between carbon atoms 1 and 2; b) together form an epoxy group between carbon atoms 1 and 2;
orc) are the same or different and are independently selected from the group consisting of H, OH, glutathione thioether, glutathione-S-oxide thioether, and glutathione-S,S-dioxide thioether; R3 is selected from the group consisting of H, OH, glutathione thioether, glutathione-S-oxide thioether, and glutathione-S,S-dioxide thioether; and Y is a haloenol lactone. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
- ##STR5## in which;
-
10. A pharmaceutical composition comprising a pharmaceutically acceptable carrier and a unit dosage for an animal of a compound having the formula:
- ##STR10## in which;
Ar is an aryl group;R1 and R2 ; a) together form a double bond between carbon atoms 1 and 2; b) together form an epoxy group between carbon atoms 1 and 2;
orc) are the same or different and are independently selected from the group consisting of H, OH, glutathione thioether, glutathione-S-oxide thioether, and glutathione-S,S-dioxide thioether; R3 is selected from the group consisting of H, OH, glutathione thioether, glutathione-S-oxide thioether, and glutathione-S,S-dioxide thioether; and wherein Y is a haloenol lactone. - View Dependent Claims (11, 12, 13, 14, 15)
- ##STR10## in which;
-
16. A method of inhibiting a glutathione S-transferase enzyme in an animal, said method comprising the administration of a pharmaceutically acceptable carrier and an amount of a compound of the formula:
- ##STR13## in which;
Ar is an aryl group;R1 and R2 ; a) together form a double bond between carbon atoms 1 and 2; b) together form an epoxy group between carbon atoms 1 and 2;
orc) are the same or different and are independently selected from the group consisting of H, OH, glutathione thioether, glutathione-S-oxide thioether, and glutathione-S,S-dioxide thioether; R3 is selected from the group consisting of H, OH, glutathione thioether, glutathione-S-oxide thioether, and glutathione-S,S-dioxide thioether; and Y is a haloenol lactone, wherein said amount is effective for inhibiting a glutathione S-transferase in said animal. - View Dependent Claims (17, 18, 19, 20, 21)
- ##STR13## in which;
Specification