Dimethylformamide → HCID 15896094, compound

Participants

Reaction Steps

To a solution of the carboxylic acid from Example 33 (0.080 g, 0.20 mmol) under a nitrogen atmosphere in dichloromethane (25 ml) at 0° C. were added DMF (20 □l) and oxalyl chloride (31 mg, 0.24 mmol). The mixture was stirred at 0° C. to room temperature for 2 h and then concentrated in vacuo. The residue was dissolved in methanol (4 ml) and dichloromethane (16 ml) and the mixture stirred at room temperature for 16 h. The mixture was then washed with 1M KHSO4 (3 times), saturated sodium bicarbonate solution (3 times) and brine, dried over Na2SO4, and concentrated in vacuo. The residue was purified by flash chromatography on silica (eluant dichloromethane:methanol 96:4) to give a white solid; yield 0.049 g (60%).

Provenance & Evidence