Sodium Carbonate → HCID 86688548, compound

Participants

Reaction Steps

The compound (400 mg, 932 μmol) obtained in Example 1 and pyrimidine-5-boronic acid (289 mg, 2.33 mmol) were dissolved in DMF (10 mL), and a 2N sodium carbonate aqueous solution (1.62 mL, 3.26 mmol) and tetrakis(triphenylphosphine)palladium(0) (107 mg, 93.2 μmol) were added thereto. The resulting mixture was subjected to reaction at 120° C. for 40 minutes in a microwave reactor. A saturated ammonium chloride aqueous solution was added to the resulting mixture to stop the reaction, and after extraction with ethyl acetate, the extract was washed with a saturated sodium chloride aqueous solution and dried over anhydrous sodium sulfate. The desiccant was filtered off, and the residue obtained by evaporation under reduced pressure was purified using medium pressure flash column chromatography (silica gel; methanol:chloroform=1:40), thereby giving the title compound (160 mg, 40%) as a pale brown solid.

Provenance & Evidence