Carbonic acid, bis(1,1-dimethylethyl) ester → HCID 86657788, compound

Participants

Reaction Steps

To a solution of (±)-cis-4-[6-butyl-5-(4-cyclohexyloxy-phenyl)-pyridazin-3-yloxymethyl]-piperidin-3-ol dihydrochloride (1.14 mmol, 0.50 g) in DCM and saturated NaHCO3 (1 M, 1:1, v/v), was added di-t-butyl carbonate (3.42 mmol, 0.75 g). The reaction was stirred for 1 hour at room temperature. The reaction was allowed to settle and the layers were separated. The organic layer was dried and the crude product was purified by flash chromatography to give (±)-cis-4-[6-butyl-5-(4-cyclohexyloxy-phenyl)-pyridazin-3-yloxymethyl]-3-hydroxy-piperidine-1-carboxylic acid tert-butyl ester (0.50 g).

Provenance & Evidence