Trifluoroacetic acid → 1H-Pyrazolo[3,4-c]pyridine-1-acetic acid, 3-(aminocarbonyl)-
Reaction equation
[C:1]([C:4]1[C:12]2[C:7](=[CH:8][N:9]=[CH:10][CH:11]=2)[N:6]([CH2:13][C:14]([O:16]C(C)(C)C)=[O:15])[N:5]=1)(=[O:3])[NH2:2].C(O)(C(F)(F)F)=O>C(Cl)Cl>[C:1]([C:4]1[C:12]2[C:7](=[CH:8][N:9]=[CH:10][CH:11]=2)[N:6]([CH2:13][C:14]([OH:16])=[O:15])[N:5]=1)(=[O:3])[NH2:2]Participants
4
Procedure
To a solution of tert-butyl 2-(3-carbamoyl-1H-pyrazolo[3,4-c]pyridin-1-yl)acetate (663 mg, 2.40 mmol) in CH2Cl2 (20 mL) was added TFA (10 mL, 130 mmol), and the resulting mixture was stirred at RT for 6 h. The reaction mixture was concentrated in vacuo, the residual solid was suspended in methanol and volatiles were removed again in vacuo to give the title compound.