1,1'-Thiocarbonyldiimidazole → HCID 117856679, compound

Participants

Reaction Steps

To a solution of (1S,2S,3S,4R,5R)-2-amino-3-fluoro-5-(hydroxymethyl)cyclohexane-1,4-diol (480 mg, 2.68 mmol) in DMF (5 mL) at room temperature was added thiocarbonyldiimidazole (549 mg, 3.08 mmol). The mixture was stirred at room temperature for 1.5 h. Solvent was evaporated and the residue was purified by silica gel column chromatography, eluted with 10%-35 MeOH in DCM to give the product (3aS,4S,5R,6R,7aS)-4-fluoro-5-hydroxy-6-(hydroxymethyl)hexahydrobenzo[d]oxazole-2(3H)-thione (494 mg, 83%) as a pale yellow solid. 1H NMR (500 MHz, MeOD) δ 4.74-4.77 (m, 1H), 4.56 (ddd, J=52.8 Hz, 3.8 Hz, 1.7 Hz, 1H), 3.98 (ddd, J=23.3 Hz, 7.0 Hz, 3.9 Hz, 1H), 3.59-3.64 (m, 2H), 3.45 (ddd, J=29.6 Hz, 10.6 Hz, 1.5 Hz, 1H), 2.22-2.27 (m, 1H), 1.95-2.02 (m, 1H), 1.69-1.75 (m, 1H).

Provenance & Evidence