Acetic Acid → HCID 21023943, compound

Participants

Reaction Steps

Potassium carbonate (48 mg, 0.35 mmol) was added to a solution of (8E,12E,14E)-7-acetoxy-3,21-bis(t-butyldimethylsiloxy)-6-hydroxy-6,10,12,16,20-pentamethyl-18,19-epoxytricosa-8,12,14-trien-11-olide (220 mg, 0.29 mmol) obtained in Example B11 methanol (15 mL), followed by stirring at room temperature for 15 hours. After acetic acid (40 μL, 0.69 mmol) was added, the reaction solution was evaporated. The residue was dissolved in ethyl acetate, and the solution was washed with a saturated sodium bicarbonate aqueous solution and brine, dried over anhydrous magnesium sulfate and then concentrated to dryness under reduced pressure to obtain the title compound (0.2 g, 95%) as a colorless amorphous.

Provenance & Evidence