反应详情

4M-Hydrogen chloride dioxane solution (1 ml, 4 mmol) was added to tert-butyl 2-({4-[(4-acetamidophenyl)ethyl]phenyl}acetyl)hydrazinecarboxylate (23 mg, 0.056 mmol), and the mixture was stirred at room temperature for 15 mins. The reaction mixture was concentrated under reduced pressure, dichloromethane was added, and the mixture was concentrated again, and hydrogen chloride gas was removed. The precipitate was collected by filtration, washed with diethyl ether and dried under reduced pressure to give the title compound (18 mg, yield 98%) as a slightly yellow solid.

1. concentrationThe reaction mixture was concentrated under reduced pressure, dichloromethane
2. additionwas added
3. concentrationthe mixture was concentrated again
4. customhydrogen chloride gas was removed
5. filtrationThe precipitate was collected by filtration
6. washwashed with diethyl ether
7. customdried under reduced pressure