Tetrahydrofuran → HCID 25114168, compound

Participants

Reaction Steps

To a tetrahydrofuran solution (90 mL) of tri-n-butylethynyl tin (3 g), the 2-(4-(2-nitro-ethyl)-benzyloxy)-pyridine (4.9 g) described in Manufacturing Example 1-1-4 and 4-dimethylaminopyridine (116 mg) was added a tetrahydrofuran solution (30 mL) of di-tert-butyl dicarbonate (7.3 g), which was stirred at room temperature for 15 hours. Ethyl acetate and water were added to the mixture. The organic layer was isolated, washed with water and saturated aqueous sodium chloride, dried over anhydrous magnesium sulfate, and then filtered. The filtrate was adsorbed on silica gel, and purified by silica gel column chromatography (heptane:ethyl acetate=4:1) to obtain the title compound (5.3 g).

Provenance & Evidence