HRID334368

反应详情

EQUATION

反应方程式

HRID 334368 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

1

PROCEDURE

实验过程

To a solution of ethyl 4-(7-(bis((2-(trimethylsilyl)ethoxy)methyl)amino)-3-(1-phenyl-1H-pyrazol-4-yl)pyrazolo[1,5-a]pyrimidin-5-yl)-1-(hydroxymethyl)cyclohexanecarboxylate (200 mg, 0.277 mmol) in CH3CN/DCM (5/3 mL) was added NBS (54.3 mg, 0.305 mmol) and stirred at rt for 30 min. TLC showed complete conversion. All the volatiles were removed under reduced pressure and the residue was purified by a SiO2 column (0-35% EtOAc/Hexanes, Rf=0.7 in 50% EtOAc) to afford ethyl 4-(7-(bis((2-(trimethylsilyl)ethoxy)methyl)amino)-6-bromo-3-(1-phenyl-1H-pyrazol-4-yl)pyrazolo[1,5-a]pyrimidin-5-yl)-1-(hydroxymethyl)cyclohexanecarboxylate as a pale yellow oil (201 mg).

WORKUP

后处理

  1. customAll the volatiles were removed under reduced pressure
  2. customthe residue was purified by a SiO2 column (0-35% EtOAc/Hexanes, Rf=0.7 in 50% EtOAc)