Hydrochloric Acid → HCID 66939200, compound

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Reaction Steps

To a mixed solution of the compound (2.0 g, 5.3 mmol) obtained in Example 64d in ethanol/tetrahydrofuran (v/v=1/1, 20 mL) was added 2N aqueous sodium hydroxide solution (5.3 mL, 11 mmol), and the mixture was stirred at room temperature overnight. The reaction mixture was neutralized with 1N aqueous hydrochloric acid solution, and the mixture was extracted with ethyl acetate. The obtained organic layer was washed with saturated brine, and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure. The resulting crude title compound was purified by column chromatography (hexane-hexane/ethyl acetate=70/30) to give the title compound (1.6 g, 89%) as colorless crystals.

Provenance & Evidence