Formaldehyde → HCID 59513619, compound

Participants

Reaction Steps

Paraformaldehyde (20.6 mg, 0.686 mmol) and pyrrolidine (0.057 ml, 0.686 mmol) in EtOH (1 ml) was heated until a clear solution was obtained. The solution was added to 6-fluoro-1-(phenylsulfonyl)-1H-indol-5-ol (100 mg, 0.343 mmol; Intermediate 95) in EtOH (1 ml) and the mixture was heated at 90 oC for 10 min. Solvent was evaporated. Yield: 137 mg and ca. 20% of material was purified on Gilson HPLC using 15-45% MeCN in 50 nM ammonium hydrogencarbonate buffer. Yield: 21 mg (82%); white solid. MS (ESI+) for C19H19FN2O3S m/z 375 (M+H)+.

Provenance & Evidence