Ethanol → HCID 89622450, compound

Participants

Reaction Steps

A suspension of Example 125 (100 mg, 221 μmol) in dichloromethane (10 ml) was treated with thionyl chloride (161 μl, 2.21 mmol), and the mixture was stirred at rt for 30 min. Ethanol was added, and the volatiles were evaporated under reduced pressure. The residue was dissolved in ethanol (10 ml), sodium ethylate (30 mg, 442 μmol) was added, and the mixture was stirred at rt for 1 h. The mixture was then directly separated by preparative RP-HPLC (Reprosil C18, gradient 20-40% acetonitrile/0.2% aq. trifluoroacetic acid). The product fractions were combined and alkalized by addition of sat. aq. sodium bicarbonate solution. The solution was extracted with ethyl acetate, and the organic layer was washed with brine, dried over magnesium sulfate and evaporated to yield 57 mg of the title compound (54% of th.).

Provenance & Evidence