反应详情

A solution of 5-chloro-1-(phenylsulfonyl)-1H-pyrrolo[3,2-b]pyridine-2-carbaldehyde (0.42 g, 1.3 mmol, prepared in Step 1) in THF (10 mL) was added to a mixture of 2.8 M NaOH (12 mL, 34 mmol) and MeOH (10 mL) at 0° C. After 40 minutes, the reaction was allowed to come to room temperature and stir for 30 minutes. Saturated NH4Cl was added and was extracted twice with DCM. The extracts were washed with water and then with brine, dried over sodium sulfate, filtered and concentrated. Flash chromatography, eluting with a gradient from 0-30% EtOAc in hexanes afforded product as a white solid (0.19 g, 80%).

1. customto come to room temperature
2. extractionwas extracted twice with DCM
3. washThe extracts were washed with water
4. dry with materialwith brine, dried over sodium sulfate
5. filtrationfiltered
6. concentrationconcentrated
7. washFlash chromatography, eluting with a gradient from 0-30% EtOAc in hexanes afforded product as a white solid (0.19 g, 80%)