Ammonium Chloride → 4-{2-[(r)-2-((e)-3-Hydroxy-3-pentyl-oct-1-enyl)-5-oxo-pyrrolidin-1-yl]-ethylsulfanyl}-butyric acid

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Reaction Steps

To a −24° C. tetrahydrofuran (38 mL) solution of enone (from Example 1, step 3, 1.52 g) was treated with n-pentylmagnesium bromide (1.8 mL, 2 M ether solution from Aldrich). After 1 hour, the mixture was poured into aqueous ammonium chloride and extracted with ethyl acetate. Following drying and filtration, the desired alcohol (780 mg) was obtained after silica gel chromatography (elute with 5% methanol in ethyl acetate).

Provenance & Evidence