Hydrochloric Acid → (S)-1-(5-(5-(3-methylpyridin-2-ylthio)-3-(2-methylpyridin-3-yloxy)pyridin-2-ylamino)-1,2,4-thiadiazol-3-yl)ethane-1,2-diol hydrochloride

Participants

Reaction Conditions

Reaction Steps

To a solution of (S)—N-(5-(3-methylpyridin-2-ylthio)-3-(2-methylpyridin-3-yloxy)pyridin-2-yl)-3-(1,4-dioxaspiro[4.5]decan-2-yl)-1,2,4-thiadiazol-5-amine (0.565 g, 1.03 mmol) in ethanol (25 mL) was added an aqueous solution of 6N HCl (2 mL) The reaction was heated at 80° C. for 2 hours, cooled to ambient temperature, stirred for 30 minutes, then cooled at 0° C. for an hour. The reaction was filtered, washed with cold ethanol, hexanes, and dried to afford (S)-1-(5-(5-(3-methylpyridin-2-ylthio)-3-(2-methylpyridin-3-yloxy)pyridin-2-ylamino)-1,2,4-thiadiazol-3-yl)ethane-1,2-diol hydrochloride (0.450 g, 0.891 mmol, 86.5% yield) as white crystals. Mass Spectrum (apci) m/z=469.1 (M+H−HCl).

Provenance & Evidence