Sodium Thiosulfate → (2-Benzyloxy-5-trifluoromethyl-benzyl)-(3,5-bis-trifluoromethyl-benzyl)-[5-(2-methanesulfonyl-ethoxy)-pyrimidin-2-yl]-amine

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Reaction Steps

(2-Benzyloxy-5-trifluoromethyl-benzyl)-(3,5-bis-trifluoromethyl-benzyl)-[5-(2-methylsulfanyl-ethoxy)-pyrimidin-2-yl]-amine (1.21 g) is dissolved in chloroform (15 ml) and thereto is added m-chloroperbenzoic acid (75%) (906 mg) and the mixture is stirred at room temperature for 2 hours. To the reaction solution are added saturated aqueous sodium thiosulfate solution and chloroform, and the mixture is separated, and the organic layer is washed with a saturated brine, dried over magnesium sulfate, and concentrated under reduced pressure. The resulting residue is purified by silica gel column chromatography (hexane:ethyl acetate=19:1→7:3) to give (2-benzyloxy-5-trifluoromethyl-benzyl)-(3,5-bis-trifluoromethyl-benzyl)-[5-(2-methanesulfonyl-ethoxy)-pyrimidin-2-yl]-amine (1.09 g). MS (m/z): 708 [M+H]+

Provenance & Evidence