Water → {5-({[4-(Methyloxy)phenyl]methyl}oxy)-4-[(trimethylsilyl)ethynyl]-2-pyridinyl}methyl acetate

Participants

Reaction Conditions

Reaction Steps

(5-[(4-Methoxybenzyl)oxy]-4-{[(trifluoromethyl)sulfonyl]oxy}pyridin-2-yl)methylacetate (1.2 g, 2.78 mmol) was dissolved in acetonitrile (9.3 mL), added copper iodide (53 mg, 278 μmol), ditriphenylphosphine palladium (II) dichloride (98 mg, 139 μmol), triethylamine (8.0 mL) and trimethylsilyl acetylene (819 mg, 8.34 mmol) under an argon atmosphere, and under ice-cold conditions, and the mixture was stirred at 45° C. overnight. This operation was conducted for 4 lots, and the following treatments were conducted as a whole. The reaction solution was added water, and filtered through a pad of celite. The obtained filtrate was extracted with ethyl acetate. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and concentrated in vacuo. A crude product of the title compound (5.38 g) was obtained as a yellow oil.

Provenance & Evidence