Triphenylphosphine → Methyl [4-(2-{(1S,2R)-2-[1-(5-chloropyrimidin-2-yl)piperidin-4-yl]cyclopropyl}ethoxy)-2-fluorophenyl]acetate

Participants

Reaction Steps

To a solution of methyl (2-fluoro-4-hydroxyphenyl)acetate (1.3 g, 4.61 mmol) in 15 ml anhydrous dichloromethane at RT was added a solution of 2-{(1S,2R)-2-[1-(5-chloropyrimidin-2-yl)piperidin-4-yl]cyclopropyl}ethanol (1.02 g, 1.70 mmol) in 5 ml of anhydrous dichloromethane, followed by triphenylphosphine (polymer-bound, 3.63 g, 10.5 mmol) and di-tert-butyl azodicarboxylate (2.13 g, 9.23 mmol). The mixture was stirred at RT for 3 hours, filtered through Celite and concentrated. The residue was purified by column chromatography on silica gel (Biotage 100 g) using a gradient eluent of 0-50% ethyl acetate in hexanes (1500 ml) to afford the title compound. LC/MS (m/z) 448.2 (M+H)+.

Provenance & Evidence