反应详情

To a mixture of 4-amino-pyridine-6-carboxylic acid (250 mg, 1.81 mmol) with TBTU (600 mg, 1.87 mmol) and TEA (1 mL, 7.2 mmol) in 4 mL DMF was added 4,4-dimethyl-cyclohexylamine (300 mg, 1.83 mmol) and the mixture stirred at ambient temperature for 1 h. Then the mixture was poured into water at 0° C. and stirred for 5 min. The precipitate was filtered off, washed with water and dried at 55° C.

1. stirringstirred for 5 min
2. filtrationThe precipitate was filtered off
3. washwashed with water
4. customdried at 55° C.