Potassium Carbonate → (R)-3-[2-Oxo-1-(1,4,6-trimethyl-1H-indol-3-ylmethyl)-1,2-dihydro-imidazo[4,5-b]pyridin-3-yl]-3-phenyl-propionic acid ethyl ester

Participants

Reaction Conditions

Reaction Steps

To a solution of (R)-3-(2-oxo-1,2-dihydro-imidazo[4,5-b]pyridin-3-yl)-3-phenyl-propionic acid ethyl ester (refer to example 2) (80 mg, 0.26 mmol) in DMF (10 mL) were added trimethyl-(1,4,6-trimethyl-1H-indol-3-ylmethyl)-amino iodide (138 mg, 0.39 mmol) and K2CO3 (71 mg, 0.51 mmol) at room temperature. The solution was heated at 100° C. for 4 hours. The solution was cooled and was extracted with water and EtOAc. The combined organic layer was dried with MgSO4 and filtered. The filtrate was concentrated and the residue was purified by silica gel flash column chromatography with 20% EtOAc in Hexane as the eluent to afford the title compound (100 mg, 81%) as white foam.

Provenance & Evidence