反应详情

温度

50 °C

Into a 50-mL round-bottom flask, was placed a solution of methyl 3-(4-fluorophenyl)-2-(4-(4-(trifluoromethyl)phenyl)piperidin-1-yl)quinoxaline-6-carboxylate (120 mg, 0.24 mmol, 1.00 equiv) in methanol (20 mL) and a solution of sodium hydroxide (47.2 mg, 1.18 mmol, 5.00 equiv) in water (2 mL). The resulting solution was stirred for 3 h at 50° C. in an oil bath. The resulting mixture was concentrated under vacuum. The resulting solution was diluted with 30 mL of water. The pH value of the aqueous solution was adjusted to 3 with 1N hydrochloric acid. The resulting solids were collected by filtration and washed with 10 mL×1 of water. The solid was dried in an oven under reduced pressure. The solid was purified by re-crystallization from methanol. This resulted in 60 mg (51%) of 3-(4-fluorophenyl)-2-(4-(4-(trifluoromethyl)phenyl)piperidin-1-yl)quinoxaline-6-carboxylic acid as a yellow solid.

1. customInto a 50-mL round-bottom flask, was placed
2. concentrationThe resulting mixture was concentrated under vacuum
3. additionThe resulting solution was diluted with 30 mL of water
4. filtrationThe resulting solids were collected by filtration
5. washwashed with 10 mL×1 of water
6. customThe solid was dried in an oven under reduced pressure
7. customThe solid was purified by re-crystallization from methanol
8. customThis resulted in 60 mg (51%) of 3-(4-fluorophenyl)-2-(4-(4-(trifluoromethyl)phenyl)piperidin-1-yl)quinoxaline-6-carboxylic acid as a yellow solid