Hydrochloric Acid → 4-(Amino(6-oxo-2-(3-(trifluoromethyl)phenylamino)cyclohex-1-enyl)methyl)-3-methylbenzonitrile hydrochloride

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Reaction Steps

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).

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