HRID1184882

反应详情

EQUATION

反应方程式

HRID 1184882 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

1

CONDITIONS

反应条件

温度
60 °C

PROCEDURE

实验过程

A solution of 7-aminothieno[2,3-b]pyrazine-6-carboxylic acid 8 (179 mg, 0.948 mmol), HATU and DIPEA (0.313 mL, 1.895 mmol) in DMF (6 mL) was stirred at rt for 15 min. 2,4-difluoro-5-nitroaniline 71 (165 mg, 0.948 mmol) was added and stirred overnight at 60° C. Citric acid solution (3%) was added and extracted with EtOAc. Organic layer was washed twice water, brine, dried and evaporated. Purification by chromatography (20% EtOAc in heptane) gave 3-(2-cyanopropan-2-yl)-N-(2,4-difluoro-5-nitrophenyl)benzamide 72 (157 mg, 48%). (m/z)=346 (M+H)+.

WORKUP

后处理

  1. extractionextracted with EtOAc
  2. washOrganic layer was washed twice water, brine
  3. customdried
  4. customevaporated
  5. customPurification by chromatography (20% EtOAc in heptane)