Ethyl Acetate → Tert-butyl 3-(6-{(3,5-bis-trifluoromethyl-benzyl)-[2-(butyl-ethyl-amino)-5-trifluoromethyl-benzyl]-amino}-pyrimidin-4-ylamino)-propionate

Participants

Reaction Conditions

Reaction Steps

(3,5-Bis-trifluoromethyl-benzyl)-[2-(butyl-ethyl-amino)-5-trifluoromethyl-benzyl]-(6-chloropyrimidin-4-yl)-amine (300 mg) is dissolved in toluene (5 ml), and thereto are added 3-aminopropionic acid tert-butyl ester hydrochloride (888 mg) and N-ethyldiisopropylamine (1.7 ml), and the mixture is stirred at 120° C. overnight. To the reaction solution are added ethyl acetate and a 1N-hydrochloric acid, and the mixture is separated. The organic layer is washed with a saturated brine, dried over magnesium sulfate, and concentrated under reduced pressure. The resulting residue is purified by column chromatography (hexane:ethyl acetate=9:1→3:1) to give tert-butyl 3-(6-{(3,5-bis-trifluoromethyl-benzyl)-[2-(butyl-ethyl-amino)-5-trifluoromethyl-benzyl]-amino}-pyrimidin-4-ylamino)-propionate (70 mg). MS (m/z): 722 [M+H]+

Provenance & Evidence