Dimethylformamide → HCID 56943752, compound

Participants

Reaction Steps

Cesium carbonate (172 mg) and methyl iodide (26.8 ul) were added to a DMF (5 ml) solution of the compound 321 (150 mg), and the obtained mixture was stirred at room temperature for 2 hours. Water was added to the reaction solution, and the mixture was extracted with ethyl acetate. The obtained organic layer was washed with a saturated sodium chloride aqueous solution, dried over magnesium sulfate, and then concentrated under reduced pressure. The obtained residue was purified by silica gel column chromatography (n-heptane:ethyl acetate=9:1 to 2:3), so as to obtain the title compound (70 mg).

Provenance & Evidence