反应详情

To a solution of [(R)-2-tert-butoxycarbonylamino-2-[1-phenyl-5-(3-propylphenyl)-1H-pyrazol-3-ylcarbamoyl]ethyl]carbamic acid tert-butyl ester (328 mg) in 1,4-dioxane (3 ml) was added a 4M solution of hydrogen chloride in 1,4-dioxane (3 ml) at room temperature, and the mixture was stirred for 2 hours. This reaction solution was concentrated, and then n-hexane (4 ml) was added thereto, and the mixture was stirred. The insoluble substance was collected by filtration, washed with n-hexane, and dried under reduced pressure to give the titled compound (181 mg).

1. concentrationThis reaction solution was concentrated
2. additionn-hexane (4 ml) was added
3. stirringthe mixture was stirred
4. filtrationThe insoluble substance was collected by filtration
5. washwashed with n-hexane
6. customdried under reduced pressure