Cesium carbonate → [Rac]-(4-{1-[4-cyclopropyl-2-(4-trifluoromethyl-phenyl)-pyrimidin-5-yl]-butylsulfanyl}-2-methyl-phenoxy)-acetic acid tert-butyl ester

Participants

Reaction Steps

231 mg (0.7 mmol) cesium carbonate was added to a solution of 210 mg (0.59 mmol) [rac]-5-(1-chloro-butyl)-4-cyclopropyl-2-(4-trifluoromethyl-phenyl)-pyrimidine (example 30D]) and 151 mg (0.59 mmol) (4-mercapto-2-methyl-phenoxy)-acetic acid tert-butyl ester (example 28C]) in 3 ml DMF. After stirring for 3 h at RT, the reaction mixture was taken up in ether and washed with 1N HCl and water. The crude product was purified by chromatography over silica gel with AcOEt/heptane 1:9 providing 257 mg of pure [rac]-(4-{1-[4-cyclopropyl-2-(4-trifluoromethyl-phenyl)-pyrimidin-5-yl]-butylsulfanyl}-2-methyl-phenoxy)-acetic acid tert-butyl ester.

Provenance & Evidence