17α-Alkyl- or 17α-substituted benzyl-17β-estradiols: A new family of estrone-sulfatase inhibitors
作者:Donald Poirier、Roch P. Boivin
DOI:10.1016/s0960-894x(98)00330-8
日期:1998.7
A series of 17 alpha-derivatives of 17 beta-estradiol was synthesized and tested for their ability to inhibit the estrone-sulfatase activity transforming estrone sulfate to estrone. A strong inhibitory activity was obtained when an alkyl side chain or a substituted benzyl was introduced at position 17 alpha of estradiol. The 17 alpha-(3'-bromobenzyl)-estradiol (26) and 17 alpha-(4'-t-butylbenzyl)-estradiol (30) were the most potent estrone-sulfatase inhibitors obtained in our study with IC50 values of 24 and 28 nM, respectively. They also represent a new family of estrone-sulfatase inhibitors. These compounds are about 300-fold more effective in interacting with the enzyme than the substrate estrone sulfate itself. (C) 1998 Elsevier Science Ltd. All rights reserved.
Structure−Activity Relationships of 17α-Derivatives of Estradiol as Inhibitors of Steroid Sulfatase
作者:Roch P. Boivin、Van Luu-The、Roger Lachance、Fernand Labrie、Donald Poirier
DOI:10.1021/jm0001166
日期:2000.11.1
inhibit steroidsulfataseactivity may be a rewarding approach to the treatment of androgeno-sensitive and estrogeno-sensitive diseases. In the present study, we report the chemical synthesis and biological evaluation of a new family of steroidsulfatase inhibitors. The inhibitors were designed by adding an alkyl, a phenyl, a benzyl, or a benzyl substituted at position 17alpha of estradiol (E(2)), a C18-steroid
Potent Inhibition of Steroid Sulfatase Activity by 3-<i>O</i>-Sulfamate 17α-Benzyl(or 4‘-<i>tert</i>-butylbenzyl)estra-1,3,5(10)-trienes: Combination of Two Substituents at Positions C3 and C17α of Estradiol
作者:Liviu C. Ciobanu、Roch P. Boivin、Van Luu-The、Fernand Labrie、Donald Poirier
DOI:10.1021/jm980677l
日期:1999.6.1
Steroid sulfates are precursors of hormones that stimulate androgen- and estrogen-dependent cancers. Thus, steroid sulfatase, the enzyme that catalyzes conversion of DHEAS and E1S to the corresponding unconjugated steroids DHEA and E1, appears to be one of the key enzymes regulating the level of active androgenic and estrogenic steroids. Since 17alpha-substituted benzylestradiols and 3-O-sulfamate