反应详情

温度

125 °C

A mixture of 6-bromo-N4-isopropylpyridine-3,4-diamine (intermediate 257, 1.2 g, 5.22 mmol), triethylorthoformate (26.6 ml, 156 mmol) and TFA (0.24 ml, 3.12 mmol) was heated at 125° C. for 3.5 h and then concentrated. The residue was diluted with sat. aq. NaHCO3 and extracted with

1. concentrationconcentrated
2. additionThe residue was diluted with sat. aq. NaHCO3
3. extractionextracted with