反应详情

To a suspension of 2-aminothiazolo[4,5-c]pyridine [prepared according to the procedure in T. Takahashi et al., Pharm. Bull. (Japan) 2, 34 (1954)] (151 mg, 1 mmole) in acetic anhydride (1 ml) was added pyridine (1 ml), and the mixture was heated at 100°-120° C. for an hour. After cooling, the mixture was diluted with CH2Cl2 (20 ml). The resulting precipitate was collected by filtration and recrystallized from methanol (20 ml) to give 90 mg of the title compound as fine needles (46%). Mp. >212° C. (sub.).

1. customprepared
2. temperaturethe mixture was heated at 100°-120° C. for an hour
3. temperatureAfter cooling
4. filtrationThe resulting precipitate was collected by filtration
5. customrecrystallized from methanol (20 ml)