Thionyl Chloride → 2-(4-{4-Methyl-5-[2-(trifluoromethyl)phenyl]-4h-1,2,4-triazol-3-yl}bicyclo[2.2.2]oct-1-yl)-5-(3,3,3-trifluoro-1-methylpropyl)-1,3,4-oxadiazole

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Reaction Conditions

Reaction Steps

To 13-B in toluene (3 mL) was added thionyl chloride (2 mL) and, fitted with a reflux condenser, the solution was heated to 85° C. under a nitrogen atmosphere. After 1 hour the solvent was stripped off in vacuo. The residue was dissolved in CH3CN (4 ml) and product was purified by Masslynx reverse phase chromatography eluting with a 10-90% CH3CN (0.1% TFA)/water (0.1% TFA) gradient. Solvent was removed in vacuo and the product free based from methylene chloride and saturated aqueous sodium bicarbonate. The organic layer was washed with brine and dried over MgSO4. The solvent was removed and the product lyopholyzed from CH3CN and water to afford 13-C as a white solid. MS (ESI+)=514.22 (M+1); 1H NMR (500 MHz, CDCl3): δ 7.85-7.83 (m, 1 H), 7.72-7.68 (m, 2 H), 7.52 (t, 1 H), 3.48 (s, 3 H), 3.46 (m, 1 H), 2.86-2.74 (m, 1 H), 2.51-2.39 (m, 1 H), 2.28 (m, 6 H), 2.14 (m, 6 H), 1.50 (d, 3 H) ppm.

Provenance & Evidence