HRID1184882
反应详情
EQUATION
反应方程式
REACTANTS
反应物
HCID311
Citric Acid
C6H8O7
HCID81531
Diisopropylethylamine
C8H19N
HCID2758312
2,4-difluoro-5-nitroaniline
C6H4F2N2O2
HCID9886157
Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)
C10H15F6N6OP
HCID12225712
7-Aminothieno[2,3-b]pyrazine-6-carboxylic acid
C7H5N3O2S
PRODUCTS
生成物
AUXILIARIES
试剂、催化剂与溶剂
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
- extractionextracted with EtOAc
- washOrganic layer was washed twice water, brine
- customdried
- customevaporated
- customPurification by chromatography (20% EtOAc in heptane)