Discovery of Aryloxy Tetramethylcyclobutanes as Novel Androgen Receptor Antagonists
摘要:
An aryloxy tetramethylcyclobutane was identified as a novel template for androgen receptor (AR) antagonists via cell-based high-throughput screening. Follow-up to the initial "hit" established 5 as a viable lead. Further optimization to achieve full AR antagonism led to the discovery of 26 and 30, both of which demonstrated excellent in vivo tumor growth inhibition upon oral administration in a castration-resistant prostate cancer (CRPC) animal model.
[EN] TELESCOPING SYNTHESIS OF 5-AMINO-4-NITROSO-1-ALKYL-1H-PYRAZOLE SALTS<br/>[FR] SYNTHÈSE MONOTOPE DE SELS DE 5-AMINO-4-NITROSO-1-ALKYL-1H-PYRAZOLE
申请人:PROCTER & GAMBLE
公开号:WO2013122989A1
公开(公告)日:2013-08-22
A telescoping synthesis of 5-amino-4-nitroso-1-alkyl-1H-pyrazole salt derivatives of formula (I), the compound (I) itself, and its use as an intermediate in the fabrication of 1-alkyl-4,5-diaminopyrazole salts of general formula (IX). The compounds of formula (IX) can be used as precursor dyes in oxidative hair dye compositions. R is a mono- or poly- substituted or unsubstituted, straight or branched, saturated or mono-or poly- unsaturated, alkyl group. HZ and HZ' are organic or mineral acids.