反应详情

To a solution of N-(2-bromoisonicotinoyl)-3-(3,4-dimethoxyphenyl)alanine ethyl ester (12.8 g) in tetrahydrofuran (100 ml) is added sodium borohydride (3.3 g), and thereto is added dropwise methanol (15 ml) with heating under reflux over a period of three hours. The reaction mixture is cooled with ice, and thereto is added water. The mixture is extracted with chloroform, and the extract is washed, dried, and concentrated to give 2-(2-bromoisonicotinoylamino)-3-(3,4-dimethoxyphenyl)-1-propanol (10.2 g).

1. temperaturewith heating
2. temperatureunder reflux over a period of three hours
3. temperatureThe reaction mixture is cooled with ice
4. extractionThe mixture is extracted with chloroform
5. washthe extract is washed
6. customdried
7. concentrationconcentrated