HCID 58392355, compound → HCID 58392206, compound

Participants

Reaction Steps

18 mg (0.28 mmol) of copper powder were added to 12.2 g (27.5 mmol) of the compound from Example 13A in 200 ml of pyridine and 55 ml of ethanol. The reaction mixture was heated under reflux for 4 h. It was concentrated, and the residue was taken up in dichloromethane, washed with water, 1N hydrochloric acid and saturated aqueous sodium chloride solution, dried over magnesium sulfate, filtered and concentrated. The residue was purified by flash chromatography on silica gel (mobile phase: toluene/ethyl acetate gradient). 6.68 g (56% of theory) of the target compound were obtained.

Provenance & Evidence