Design, Synthesis, and in Vivo SAR of a Novel Series of Pyrazolines as Potent Selective Androgen Receptor Modulators
摘要:
A novel series of pyrazolines 2 have been designed, synthesized, and evaluated by in vivo screening as tissue-selective androgen receptor modulators (SARMs). Structure- activity relationships (SAR) were investigated at the R-1 to R-6 positions as well as the core pyrazoline ring and the anilide linker. Overall, strong electron-withdrawing groups at the RI and 2 positions and a small group at the R1 and RI position are optimal for AR agonist activity. The (S)-isomer of 7c exhibits more potent AR agonist activity than the corresponding (R)-isomer. (S)-7c exhibited an overall partial androgenic effect but full anabolic effect via oral administration in castrated rats. It demonstrated a noticeable antiandrogenic effect on prostate in intact rats with endogenous testosterone. Thus, (S)-7c is a tissue-selective nonsteroidal androgen receptor modulator with agonist activity on muscle and mixed agonist and antagonist activity on prostate.
NOVEL HETEROCYCLE DERIVATIVES USEFUL AS SELECTIVE ANDROGEN RECEPTOR MODULATORS (SARMS)
申请人:Zhang Xuqing
公开号:US20090131365A1
公开(公告)日:2009-05-21
The present invention is directed to novel heterocycle derivatives, pharmaceutical compositions containing them and their use in the treatment of disorders and conditions modulated by the androgen receptor.