tert-butyl 4-[4-[5-cyano-3-methyl-6-(2,3,6-trifluorophenyl)-2,4-dihydro-1H-pyrazolo[3,4-b]pyridin-4-yl]phenyl]piperazine-1-carboxylate → HCID 178434431, compound

Participants

Reaction Steps

To 2.48 g (4.50 mmol) of tert-butyl 4-(4-(5-cyano-3-methyl-6-(2,3,6-trifluorophenyl)-4,7-dihydro-1H-pyrazolo[3,4-b]pyridin-4-yl)phenyl)piperazine-1-carboxylate diluted in 20 ml of dichloromethane are added 1.96 g (22.5 mmol) of manganese oxide. The reaction mixture is sonicated for 5 min then stirred at room temperature for 18 h. It is next filtered on Celite (cyclohexane/ethyl acetate eluent: 5:5) to yield 1.86 g of tert-butyl 4-(4-(5-cyano-3-methyl-6-(2,3,6-trifluorophenyl)-1H-pyrazolo[3,4-b]pyridin-4-yl)phenyl)piperazine-1-carboxylate in the form of a light yellow solid.

Provenance & Evidence