Cesium carbonate → HCID 66922405, compound

Participants

Reaction Steps

The compound of example 56 (60 mg, 111 μmol), cesium carbonate (108 mg, 332 μmol) and tert-butyl bromoacetate (17.9 μl, 23.7 μmol) were stirred in DMF at room temperature for 2 h. The mixture was diluted with water and extracted with EA. The organic layer was dried over sodium sulfate, filtered and evaporated under reduced pressure. The residue was purified by silica gel chromatography (EA/HEP). Yield: 67 mg.

Provenance & Evidence