反应详情

Ethyl 2-(2-methyl-4,5-diphenyl-3-(2-(phenylsulfonyl)benzyl)-1H-pyrrol-1-yl)acetate (0.300 g, 0.546 mmol) was dissolved in a 3:1:1 mixture of THF/MeOH/water (10 ml) and charged with lithium hydroxide (0.065 g, 2.73 mmol). The reaction was stirred at rt for 1 h, at which time LC/MS suggested the reaction was complete. The reaction was acidified with 3 N HCl, and the resulting mixture concentrated to almost dryness (water left), diluted with 3 mL brine solution and extracted 3 times with DCM. The organic layers were combined, dried, filtered, and concentrated under vacuum to yield 2-(2-methyl-4,5-diphenyl-3-(2-(phenylsulfonyl)benzyl)-1H-pyrrol-1-yl)acetic acid (285 mg, 0.546 mmol, 100% yield).

1. concentrationthe resulting mixture concentrated to almost dryness (water left)
2. additiondiluted with 3 mL brine solution
3. extractionextracted 3 times with DCM
4. customdried
5. filtrationfiltered
6. concentrationconcentrated under vacuum