Iodoethane → 6-Cyclopropylmethoxy-5-(3,3-difluoro-azetidin-1-yl)-pyridine-2-carboxylic acid ethyl-(1-trifluoromethyl-cyclopropyl)-amide

Participants

Reaction Steps

A solution of 6-(cyclopropylmethoxy)-5-(3,3-difluoroazetidin-1-yl)-N-(1-(trifluoromethyl)cyclopropyl)picolinamide (Example 16 a), 15 mg, 38 μmol) and sodium 2-methylbutan-2-olate (5 mg, 46 μmol) in DMF (150 μL) was stirred for 15 minutes at ambient temperature. Iodoethane (9 mg, 7 μL, 58 μmol) was added and stirring was continued for 1 h. The reaction mixture was poured onto ice/sat. aqueous NaHCO3 solution (15 mL) and extracted with EtOAc (2×25 mL). The combined extracts were washed with ice/brine (2×20 mL), dried over Na2SO4 and brought to dryness. The crude product was purified by preparative TLC (silica gel, 1 mm, heptan/EtOAc 2:1, elution with EtOAc) to give the title compound (12 mg, 75%) as colorless oil; MS (EI): m/e=420.2 [MH]+.

Provenance & Evidence