Benzoyl isothiocyanate → N-(((3 S,4R,5 S)-3-(2,3-Difluorophenyl)-4-(hydroxymethyl)-5-(trifluoromethyl)tetrahydrofuran-3-yl)carbamothioyl)benzamide

Participants

Reaction Steps

Benzoyl isothiocyanate (2.0 mL) was added to a solution containing ((2S,3R,4S)-4-amino-4-(2,3-difluorophenyl)-2-(trifluoromethyl)tetrahydrofuran-3-yl)methanol (3.12 g) in DCM (20 mL), and the mixture was stirred at RT for 18 h. Sodium bicarbonate (sat., aq., 50 mL) was then added, the mixture extracted with EtOAc (3×75 mL), dried over MgSO4 and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (5% to 40% EtOAc in hexanes) to obtain the title compound (4.18 g). 1H NMR (400 MHz, CDCl3) δ ppm 3.12 (dd, J=7.6, 4.3 Hz, 1 H), 3.18-3.29 (m, 1 H), 4.03 (ddd, J=12.3, 7.2, 4.5 Hz, 1 H), 4.35-4.49 (m, 1 H), 4.59 (d, J=9.9 Hz, 1 H), 4.81 (d, J=9.6 Hz, 1 H), 7.07-7.23 (m, 2 H), 7.49 (t, J=7.2 Hz, 1 H), 7.56 (t, J=7.7 Hz, 2 H), 7.67 (t, J=7.5 Hz, 1 H), 7.88 (d, J=7.1 Hz, 2 H), 8.92 (s, 1 H), 11.89 (s, 1H)

Provenance & Evidence