Anti-cancer serine hydrolase inhibitory carbamates
Serine hydrolases are implicated in malconditions such as cancer, central nervous system disorders, cardiovascular disorders, obesity, and metabolic disorders. Many serine hydrolases expressed in proteomic libraries are of unknown function in vivo. Compounds identified through library versus library screening can be used for treatment of malconditions associated with the specific serine hydrolase KIAA1363 (also known as AADACL1). A library of inhibitors of KIAA1363 was prepared and candidate compounds were identified as a potent inhibitors having submicromolar IC 50 values. An exemplary compound of the invention was shown to be an effective inhibitor of prostate cancer pathogenesis. Other inhibitory compounds of the invention comprising fluorophore groups are shown to be effective in spatial and temporal localization of the serine hydrolase in cells and tissues.
1. A serine hydrolase KIAA1363 inhibitory carbamate compound of formula (I) or a pharmaceutically acceptable salt thereof:
wherein
—NH—C(═O)O— is a carbamate group for reaction with an active serine residue of the serine hydrolase enzyme;
Ar 1 is a group of formula (II)
wherein a wavy line indicates a point of bonding of Ar 1 to the carbamate group;
each independently selected R o is H, alkyl, or alkenyl,
each independently selected R m is H or alkyl,
R p is H, alkyl, or cycloalkyl;
R 1 is
naphthylalkyl.
2. A serine hydrolase KIAA1363 inhibitory carbamate compound of formula (I) or a pharmaceutically acceptable salt thereof:
wherein
—NH—C(═O)O— is a carbamate group for reaction with an active serine residue of the serine hydrolase enzyme;
Ar 1 is
wherein a wavy line indicates a point of attachment;
R 1 is one of the following:
(a) arylalkyl substituted by (i) halogen or haloalkyl and (ii) optionally a further group selected from the group consisting alkyl, alkenyl, cycloalkyl, halo, haloalkyl, alkoxy, alkylenedioxy, and haloalkoxy; or
(b) naphthylalkyl.
3. A pharmaceutical composition comprising a compound of claim 1 and a pharmaceutically acceptable excipient.
4. A compound selected from the group consisting of
or a pharmaceutically acceptable salt thereof.
5. The compound of claim 4 , wherein the compound is
or a pharmaceutically acceptable salt thereof.
6. The compound of claim 4 , wherein the compound is
or a pharmaceutically acceptable salt thereof.
7. A pharmaceutical composition comprising a compound of claim 5 and a pharmaceutically acceptable excipient.
8. A pharmaceutical composition comprising a compound of claim 6 and a pharmaceutically acceptable excipient.