Sodium Hydroxide → HCID 118113200, compound

Participants

Reaction Steps

To a solution in ethanol (37.8 mL) of the compound (1.97 g) obtained in step (1) above, 0.5 mol/L sodium hydroxide in aqueous solution (18.9 mL) was added under cooling with ice and the mixture was brought to room temperature at which it was stirred for 15 minutes. After the reaction mixture was concentrated under reduced pressure, the resulting residue was purified by DIAION (registered trademark) HP20 column chromatography (with elution by methanol). The eluted fraction was concentrated under reduced pressure and to a solution of the resulting compound in water (2 mL), acetone (100 mL) was added and the mixture was stirred at room temperature for an hour. The precipitate was recovered by filtration to give the titled compound as a colorless solid (1.60 g).

Provenance & Evidence