Structure–activity relationships of bioisosteric replacement of the carboxylic acid in novel androgen receptor pure antagonists
摘要:
A series of 5,5-dimethylthiohydantoin derivatives were synthesized and evaluated for androgen receptor pure antagonistic activities for the treatment of hormone refractory prostate cancer. CH4933468 (32d) with a sulfonamide side chain not only exhibited antagonistic activity with no agonistic activity in the reporter gene assay but also inhibited the growth of bicalutamide-resistant cell lines. This compound also inhibited tumor growth of the LNCaP xenograft in mice dose-dependently. (c) 2010 Elsevier Ltd. All rights reserved.
The present invention provides a compound represented by formula (I):
wherein n is an integer selected from 1 to 20, Q is
A is cyano or the like; B is hydrogen, halogen, or the like; X
1
and X
2
are each independently selected from O and S; E is a C
1-4
alkyl group; and R
1
, R
2
, R
3
and R
4
are each independently selected from a hydrogen atom and a C
1
-C
6
alkyl group, and a drug, a pharmaceutical composition containing the compound, and the like.