Methanol → HCID 67319442, compound

Participants

Reaction Steps

To a methanol solution of the compound (2.8 g) obtained in step 7 was added a solution of sodium hydroxide (0.7 g) in water (30 mL), and the mixture was stirred at room temperature for 3 hr. The mixture was concentrated under reduced pressure, diluted with water, and washed with ethyl acetate. The aqueous layer was acidified (pH 5) with acetic acid, extracted with dichloromethane, dried and concentrated under reduced pressure to give (3S,4S)-1-(tert-butoxycarbonyl)-4-(5-fluoropyridin-2-yl)pyrrolidine-3-carboxylic acid (2.3 g, 85%) as a white oil.

Provenance & Evidence