The present invention relates to an improved process for the preparation of carboxamide structured androgen receptor (AR) antagonists such as N—((S)-1-(3-(3-chloro-4-cyanophenyl)-1H-pyrazol-1-yl)-propan-2-yl)-5-(1-hydroxyethyl)-1H-pyrazole-3-carboxamide (1A) and key intermediates thereof such as 2-chloro-4-(1H-pyrazol-3-yl)benzonitrile (V). AR antagonists are useful in the treatment of cancer, particularly prostate cancer and other diseases where AR antagonism is desired.
本发明涉及一种改进的制备羧酰胺结构的雄激素受体(AR)拮抗剂的方法,例如N-((S)-1-(3-(3-
氯-4-
氰基苯基)-1H-
吡唑-1-基)-2-丙基)-5-(1-羟乙基)-1H-
吡唑-3-羧酰胺(1A)和其关键中间体,如2-
氯-4-(1H-
吡唑-3-基)苯腈(V)。 AR拮抗剂在治疗癌症,特别是前列腺癌和其他需要AR拮抗的疾病中非常有用。