Hydrochloric Acid → HCID 66682235, compound

Participants

Reaction Steps

5-{3-[(1S)-2-Methoxy-1-methylethoxy]-5-[4-(methylsulfonyl)phenoxy]phenyl}-1H-pyrrole-2-carboxylic acid (338 mg, 0.759 mmol) synthesized in Example (18a) was dissolved in dichloromethane (10 mL), and (S)-(−)-3-amino-1,2-propanediol (105 mg, 1.15 mmol), WSCI•HCl (220 mg, 1.15 mmol) and 4-dimethylaminopyridine (185 mg, 1.51 mmol) were added, followed by stirring at room temperature for 3 days under nitrogen atmosphere. 1N hydrochloric acid (10 mL) was added, and the solution was separated with dichloromethane (15 mL). The organic layer was washed with saturated brine, and subsequently dried over anhydrous magnesium sulfate. The solvent was distilled off under reduced pressure, and the resulting residue was purified using silica gel column chromatography (elution solvent: ethyl acetate/hexane=70%-100%) to afford the desired product (265 mg, yield 68%) as a white solid.

Provenance & Evidence