Ethylamine → HCID 71293415, compound

Participants

Reaction Steps

To a solution of Example 9 (100 mg, 0.23 mmol) in DMF (3 ml), were added DIPEA (102 μL, 0.6 mmol) and HATU (133 mg, 0.35 mmol) and the reaction mixture was stirred at RT for 45 mins. Ethylamine (2 M in THF, 175 μL, 0.35 mmol) was then added, and stirring at RT was continued for 16 hours. Further ethylamine (2 M in THF, 175 μL, 0.35 mmol) was added, the temperature was raised to 60° C., and stirring was continued for 1.5 hours. The reaction mixture was partitioned between EtOAc and water. The organic layer was separated, washed with brine, dried (Na2SO4) and evaporated in vacuo. The resulting residue was purified by silica gel chromatography eluting with a gradient of 80-100% EtOAc in cyclohexane to yield the title compound as a white solid (53 mg).

Provenance & Evidence