HRID1064310

反应详情

EQUATION

反应方程式

HRID 1064310 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

2

CONDITIONS

反应条件

温度
0 °C

PROCEDURE

实验过程

Chlorosulphonic acid (0.22 ml, 3.18 mmol) was added to suspension of 2-anilino-4-(1-methylimidazol-5-yl)pyrimidine (Example 14; 200 mg, 0.80 mmol) in thionyl chloride (4 ml) cooled at 0° C. The mixture was allowed to warm to ambient temperature, stirred for 15 minutes then heated at reflux for 20 minutes. The volatiles were removed by evaporation and the solid residue dried under high vacuum. The residue was suspended in pyridine (3 ml), cooled to −20° C. and diisopropylethyl amine (0.56 ml, 3.98 mmol) followed by 3-methoxypropyl amine (0.16 ml, 1.60 mmol) was added. The reaction mixture was allowed to warm to ambient temperature and stirred for 30 minutes. EtOAc (15 ml) was added and the mixture washed with saturated aqueous sodium hydrogen carbonate solution (15 ml) and then brine (15 ml). The solvent was removed by evaporation and the residue purified by column chromatography eluting with DCM and 2M methanolic ammonia solution (100:0 increasing in polarity to 85:15) to give the title compound 89 mg, (28%) as a solid product. NMR: 1.75 (m, 2H), 2.76 (q, 2H), 3.14 (s, 3H), 3.22-3.30 (m, 2H), 4.01 (s, 3H), 7.25 (d, 1H), 7.34 (t, 1H), 7.70 (d, 2H), 7.77 (s, 1H), 7.83 (s, 1H), 7.91 (d, 2H), 8.47 (d, 1H), 9.92 (s, 1H); m/z 4.03.

WORKUP

后处理

  1. temperatureto warm to ambient temperature
  2. temperaturethen heated
  3. temperatureat reflux for 20 minutes
  4. customThe volatiles were removed by evaporation
  5. customthe solid residue dried under high vacuum
  6. temperaturecooled to −20° C.
  7. additionwas added
  8. temperatureto warm to ambient temperature
  9. stirringstirred for 30 minutes
  10. washthe mixture washed with saturated aqueous sodium hydrogen carbonate solution (15 ml)
  11. customThe solvent was removed by evaporation
  12. customthe residue purified by column chromatography
  13. washeluting with DCM and 2M methanolic ammonia solution (100:0 increasing in polarity to 85:15)