Potassium Carbonate → HCID 18368070, compound

Participants

Reaction Steps

To a solution of 2-[4-[N,N-bis(tert-butoxycarbonyl)amino]-2-pyridine-2-carbonyl]-6-chloro-1-ethoxycarbonyl-3-(propionylmino)indole (step 3, 240 mg, 0.391 mol) in ethanol (10 ml) was added a solution of potassium carbonate (260 mg, 3.91 mmol) in water (5 ml) at room temperature. After stirring for 8 h, the mixture was concentrated. The residue was diluted with ethyl acetate (100 ml) and washed with (50 ml×2), dried (Na2SO4). Removl of solvent gave an oily residue, which was purified by flash column chromatography eluting with ethyl acetate/hexane (1/3) to afford 118 mg (68%) of the title compound as an oil.

Provenance & Evidence