Hydrochloric Acid → 4-{Amino-[6-oxo-2-(3-trifluoromethyl-phenylamino)-cyclohex-1-enyl]-methyl}-3-methylsulfanyl-benzonitrile hydrochloride

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Reaction Steps

A solution of hydrogen chloride in 1,4-dioxane (4 M, 4.5 mL, 18 mmol) is added to a mixture of {(4-cyano-2-methylsulfanyl-phenyl)-[6-oxo-2-(3-trifluoromethyl-phenylamino)cyclohex-1-enyl]-methyl}-carbamic acid tert-butyl ester (INTERMEDIATE 4, 2.16 g, 3.25 mmol) in acetonitrile (4.5 mL) and the mixture is stirred at room temperature for 1 h. The precipitate is filtered off, washed with acetonitrile and dried. Yield: 1.19 g. ESI mass spectrum: [M+H-NH3]+=415; Retention time HPLC: 0.88 min (Z018_S04).

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