tert-Butoxy bis(dimethylamino)methane → 1,1-Dimethylethyl [2-[3-(dimethylamino)-2-fluoroacryloyl]-5-fluoro-6-(methyloxy)-3-pyridinyl]carbamate

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

A solution of 1,1-dimethylethyl [5-fluoro-2-(fluoroacetyl)-6-(methyloxy)-3-pyridinyl]carbamate (3.72 g, 12.32 mmol) in dry toluene (20 ml) was treated with {(dimethylamino)[(1,1-dimethylethyl)oxy]methyl}dimethylamine (Bredereck's reagent) (3.05 ml, 14.78 mmol) and heated at 40° C. for 2 hours. The mixture was evaporated and the residue triturated with 3×200 ml hexane and the remaining solid dried in vacuo to afford the product (2.15 g, 49%).

Herkunft & Nachweise