反应详情

Hydrogen chloride (4 M in 1,4-dioxane, 5.50 mL, 22.0 mmol) is added to a solution of tert-butyl (4-cyano-2-methylphenyl)(6-oxo-2-(3-(trifluoromethyl)phenylamino)cyclohex-1-enyl)methylcarbamate (intermediate 51, 1.57 g, 3.14 mmol) in 1,4-dioxane (10 mL), and the mixture is stirred at room temperature over night. All volatiles are removed under reduced pressure, and the residue is treated with tert-butyl methyl ether. The precipitate is filtered and dried. Yield: 1.18 g; ESI mass spectrum [M+H]+=400; Retention time HPLC: 0.56 min (X012_S01).

1. customAll volatiles are removed under reduced pressure
2. additionthe residue is treated with tert-butyl methyl ether
3. filtrationThe precipitate is filtered
4. customdried
5. custom0.56 min (X012_S01)