Dicyclohexylcarbodiimide → HCID 21024016, compound

Participants

Reaction Steps

Ethoxyacetic acid (23 mg, 0.22 mmol), dicyclohexylcarbodiimide (55 mg, 0.27 mmol) and dimethylaminopyridine (5.4 mg, 0.27 mmol) were added to a solution of (8E,12E,14E)-7-acetoxy-3-t-butyldimethylsiloxy-6,21-dihydroxy-6,10,12,16,20-pentamethyl-18,19-epoxytricosa-8,12,14-trien-11-olide (29 mg, 0.044 mmol) in dichloromethane (3 mL) at room temperature. The mixture was stirred at room temperature for 4 hours. The reaction mixture was diluted with ethyl acetate, and filtered through Celite. The filtrate was washed with brine, dried over anhydrous magnesium sulfate and evaporated. The resulting crude product was purified by silica gel column chromatography (Kanto silica gel 60N, spherical, neutral, 40 to 100 μm, eluate; hexane:ethyl acetate=70:30) to obtain the title compound (28 mg, 85%) as a colorless oil.

Provenance & Evidence