(R)-Quinuclidin-3-yl ((S)-(3-(2-((3-(hydroxymethyl)phenyl)amino)-2-oxoethoxy)phenyl)(phenyl)methyl)carbamate → (R)-Quinuclidin-3-yl ((S)-(3-(2-((3-formylphenyl)amino)-2-oxoethoxy)phenyl)-(phenyl)methyl)carbamate

Participants

Reaction Steps

To a solution of (R)-quinuclidin-3-yl((S)-(3-(2-((3-(hydroxymethyl)-phenyl)amino)-2-oxoethoxy)phenyl)(phenyl)methyl)carbamate (0.35 g, 0.68 mmol) in 1,4-dioxane (25 mL) was added manganese (IV) oxide (0.58 g, 6.8 mmol) and the reaction mixture stirred at room temperature for 2 hours and then at 50° C. for 15 hours. The suspension was filtered through a pad of celite. The solvent was evaporated at reduced pressure to afford the crude material. This material was used in the next step without further purification.

Provenance & Evidence