Hydrochloric Acid → HCID 66855372, compound

Participants

Reaction Steps

To a solution of tert-butyl 2-[4-cyano-5-{2-[(cyclopropylcarbonyl)amino]pyridin-4-yl}-3-(2,4-dichlorophenyl)-2-thienyl]-4,5-dihydro-1H-imidazole-1-carboxylate (0.315 g, 0.541 mmol) in 1,4-Dioxane (4.00 mL, 51.2 mmol) was added 4.00 M of Hydrochloric acid in 1,4-Dioxane (1.35 mL, 5.41 mmol), stirred at room temperature overnight. Solvent was evaporated, residue was diluted with DCM (50 mL) and washed with 1M NaOH (5 mL). Layers were separated and the aqueous phase was extracted with DCM (3×50 mL). Combined organic extracts were dried with MgSO4, filtered and evaporated. The residue was purified using ISCO chromatography on silica gel, elution 5 to 80% ethyl acetate in hexanes to afford the product (0.197 g, 76%). LCMS: (FA) ES+, 482, 484. 1H NMR (400 MHz, d1-chloroform) δ: 8.66-8.64 (m, 1H) 8.41-8.38 (m, 1H), 8.25 (s, 1H), 7.61-7.59 (m, 1H), 7.48-7.45 (m, 1H), 7.44-7.41 (m, 1H), 7.37-7.34 (m, 1H), 3.97-3.68 (m, 2H), 3.60-3.25 (m, 2H), 1.57-1.52 (m, 1H), 1.17-1.11 (m, 2H), 0.95-0.88 (m, 2H).

Provenance & Evidence