反应详情

2.1 g (31.4 mmol) sodium ethylate are dissolved in 40 ml absolute ethanol. 3.0 g (10.5 mmol) 2-mercapto-6-(3,4-dimethoxyphenyl)-4-methyl-pyridine-3-carbonitrile and 1.2 g (12.6 mmol) 2-chloroacetamide are added and refluxed for 1 h. Following cooling, 10 ml water are added and the precipitate is sucked off, suck dried and dried in vacuo at 50° C. 3.4 g (94%) 3-amino-6-(3,4-dimethoxyphenyl)-4-methyl-thieno[2,3-b]-pyridine-2-carboxamide is obtained.

1. temperaturerefluxed for 1 h
2. temperatureFollowing cooling
3. customsuck dried
4. customdried in vacuo at 50° C