INHIBITORS OF 17Beta-HSD1, 17Beta-HSD3 AND 17Beta-HSD10
申请人:Poirier Donald
公开号:US20140088053A1
公开(公告)日:2014-03-27
The present application discloses 17β hydroxy steroid dehydrogenase (17β HSD) type 1, 3, 10 inhibitors and use thereof (alone and in combination) in the treatment of cancer and other afflictions. 17β HSD1 inhibitors include estradiol derivatives with a nieta-carbamoylbenzyl substituent at C 16. 17β HSD3/HSD10 inhibitors include androsterone derivatives substituted at the C3 position with a sulfonamide piperazine. Also disclosed are compounds that are inhibitors of both 17β HSD1 and 17β HSD3 that have a spiro-morpholine substituent at C20.
Discovery of a Non-Estrogenic Irreversible Inhibitor of 17β-Hydroxysteroid Dehydrogenase Type 1 from 3-Substituted-16β-(<i>m</i>-carbamoylbenzyl)-estradiol Derivatives
17 beta-Hydroxysteroid dehydrogenase type 1 (17 beta-HSD1) is thought to play a pivotal role in the progression of estrogen-sensitive breast cancer by transforming estrone (E1) into estradiol (E2). We designed three successive series of E2-derivatives at position C3 of the potent inhibitor 16 beta-(m-carbamoylbenzy1)-E2 to remove its unwanted estrogenic activity. We report the chemical synthesis and characterization of 20 new E2-derivatives, their evaluation as 17 beta-HSD1 inhibitors, and their proliferative (estrogenic) activity on estrogen-sensitive cells. The structure-activity relationship study provided a new potent and steroidal nonestrogenic inhibitor of 17 beta-HSD1 named 3-[(16 beta,17 beta)-3-(2-bromoethyl)-17-hydroxyestra-1(10),2,4-trien-16-yl]methyl}benzamide (23b). In fact, this compound inhibited the transformation of E1 into E2 by 17 beta-HSD1 in T-47D cells (IC50 = 83 nM), did not inhibit 17 beta-HSD2, 17 beta-HSD7, 17 beta-HSD12, and CYP3A4, and did not stimulate the proliferation of estrogen-sensitive MCF-7 cells. We also discussed the results of kinetic and molecular modeling (docking) experiments, suggesting that compound 23h is a competitive and irreversible inhibitor of 17 beta-HSD1.
[EN] INHIBITORS OF 17ß-HSD1, 17ß-HSD3 AND 17ß-HSD10<br/>[FR] INHIBITEURS DE 17SS-HSD1, 17SS-HSD3 ET 17SS-HSD10
申请人:UNIV LAVAL
公开号:WO2012129673A1
公开(公告)日:2012-10-04
The present application discloses 17β hydroxy steroid dehydrogenase (17β HSD) type 1, 3, 10 inhibitors and use thereof (alone and in combination) in the treatment of cancer and other afflictions. 17β HSDl inhibitors include estradiol derivatives with a nieta-carbamoylbenzyl substituent at C 16. 17β HSD3/HSD10 inhibitors include androsterone derivatives substituted at the C3 position with a sulfonamide piperazine. Also disclosed are compounds that are inhibitors of both 17β HSDl and 17β HSD3 that have a spiro-morpholine substituent at C20.