反应详情

A mixture of 1-methanesulfonyl-3-methyl-6-(2-fluorophenyl)-4,5,6,7-tetrahydroindol-4-one (0.30 g), aminoguanidine hydrochloride (0.11 g), concentrated hydrochloric acid (0.047 ml), water (0.047 ml) and ethanol (30 ml) was refluxed for 4 hours. Under reduced pressure, the solvent was evaporated, and the residue was recrystallized from ethanol to give 6-(2-fluorophenyl)-4-guanidinoimino-1-methanesulfonyl-3-methyl-4,5,6,7-tetrahydroindole hydrochloride (Compound 16) (0.2 g) as colorless crystals.

1. temperaturewas refluxed for 4 hours
2. customUnder reduced pressure, the solvent was evaporated
3. customthe residue was recrystallized from ethanol