Water → HCID 11339806, compound

Participants

Reaction Steps

A solution of 2-[4 (2,2-diethyl-8-isopropyl-4,4-dimethyl-chroman-6-ylethynyl)-phenyl]-2-methyl-propionic acid methyl ester (Intermediate 30, 0.070 g, 0.15 mmol) in methanol (3 mL) and tetrahydrofuran (0.5 mL) was treated with a 5M solution of potassium hydroxide (2 mL, 10 mmol) and the resulting reaction mixture was stirred at ambient temperature for 2 days. The volatiles were evaporated in vacuo to a residue that was neutralized with saturated aqueous ammonium chloride solution and extracted with ethyl acetate. The organic phase was washed with water and brine, and dried over anhydrous magnesium sulfate, filtered and evaporated in vacuo to afford a residue that on preparative reverse phase HPLC using 110% water in acetonitrile as the mobile phase afforded the title product as a yellow solid (0.035 g, 51%).

Provenance & Evidence