HRID1959384

反应详情

EQUATION

反应方程式

HRID 1959384 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

1

PROCEDURE

实验过程

Ethanesulfonyl chloride (147.0 mg, 108.3 μL, 1.143 mmol) was added slowly to a stirred solution of tert-butyl N-tert-butoxycarbonyl-5-(piperazin-1-yl)-3-((trimethylsilyl)ethynyl)pyrazin-2-ylcarbamate (494 mg, 1.039 mmol) and DIPEA (161.2 mg, 217.3 μL, 1.247 mmol) in DMF (5 mL) at ambient temperature. The reaction was allowed to stir for 5 minutes and then partitioned between EtOAc/water. The aqueous layer was extracted with EtOAc (3×) and the combined organics washed with brine, dried (MgSO4), filtered and concentrated to give the product as a terracotta oil (645 mg, quantitative yield). MS (ES+) 590.05

WORKUP

后处理

  1. custompartitioned between EtOAc/water
  2. extractionThe aqueous layer was extracted with EtOAc (3×)
  3. washthe combined organics washed with brine
  4. dry with materialdried (MgSO4)
  5. filtrationfiltered
  6. concentrationconcentrated