反应详情

Hydrazine hydrate (54 ml, 1.73 mmol) was added to a suspension of 2-(3-chloroanilino)-4-[1-(2-phthalimidoethyl)imidazol-5-yl]pyrimidine (Example 10; 163 mg, 0.37 mmol) in EtOH (5 ml) and the mixture was heated at reflux for 2 hours. The mixture was allowed to cool, the volatiles removed by evaporation and the residue purified by column chromatography eluting with DCM and 7M methanolic ammonia solution (90:10) to give the title compound 69 mg, (59%) as a solid product. NMR: 1.41 (brs, 2H), 2.99 (t, 2H), 4.55 (t, 2H), 7.00-7.09 (m, 2H), 7.22-7.35 (m, 3H), 7.65-7.70 (m, 2H), 7.73-7.78 (m, 1H), 8.39 (d, 1H); m/z: 315.

1. temperaturethe mixture was heated
2. temperatureat reflux for 2 hours
3. temperatureto cool
4. customthe volatiles removed by evaporation
5. customthe residue purified by column chromatography
6. washeluting with DCM and 7M methanolic ammonia solution (90:10)