Trifluoroacetic acid → HCID 67435330, compound

Participants

Reaction Steps

To a solution of (3R)-1-[(4-methylthiophenyl)(4-cyanophenyl)methyl]-3-[(4-cyanobenzoyl)amino]pyrrolidine (45.3 mg) in methylene chloride (2 mL) was added trifluoroacetic acid (31 μL) under ice-cooling and the mixture was stirred at room temperature or 30 minutes. Thereto was added m-chloroperbenzoic acid (23 mg) under ice-cooling and the mixture was stirred at the same temperature for 1 hour and then stirred at room temperature for 4 hours. To the reaction mixture was added an aqueous saturated sodium hydrogen carbonate solution and the organic layer was extracted by a diatomaceous earth column (Chem Elut; VARIAN Inc.). The extract was concentrated in vacuo and the resultant crude product was purified by a column chromatography on silica gel (solvent; chloroform/methanol=98:2→90:10). The resultant product was dissolved in t-buthanol and lyophilized to give (3R)-1-[(4-cyanophenyl)-(4-methylsulfinylphenyl)methyl]-3-[(4-cyanobenzoyl)amino]pyrrolidine (42.5 mg, yield: 91%) as a powder. MS(APCI) m/z: 469 [M+H]+

Provenance & Evidence