[C:1]([C:3]([CH3:16])([CH3:15])[CH:4]([NH:8]S(C(C)(C)C)=O)[CH:5]1[CH2:7][CH2:6]1)#[N:2].[ClH:17].O1CCOCC1>CO>[ClH:17].[NH2:8][CH:4]([CH:5]1[CH2:7][CH2:6]1)[C:3]([CH3:16])([CH3:15])[C:1]#[N:2]To a solution of 2-methylpropane-2-sulfinic acid (2-cyano-1-cyclopropyl-2,2-dimethyl-ethyl)-amide (0.70 g, 2.90 mmol) in MeOH (5 mL) at room temperature was added 4.0 M HCl in dioxane (1.5 mL, 6.0 mmol). The reaction mixture was stirred at room temperature for 15 min then concentrated to afford 0.45 g (89%, 2 steps) of 3-amino-3-cyclopropyl-2,2-dimethyl-propionitrile hydrochloride as a white solid.
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