Trifluoroacetic acid → HCID 71015318, compound

HRID 409104Notes

Reaction equation

[NH2:1][C:2]1[N:7]=[CH:6][N:5]=[C:4]2[N:8]([C@@H:26]3[CH2:31][CH2:30][CH2:29][N:28](C(OC(C)(C)C)=O)[CH2:27]3)[N:9]=[C:10]([C:11]3[CH:16]=[CH:15][C:14]([O:17][C:18]4[CH:23]=[C:22]([F:24])[CH:21]=[CH:20][C:19]=4[F:25])=[CH:13][CH:12]=3)[C:3]=12.C(O)(C(F)(F)F)=O>ClCCl>[F:25][C:19]1[CH:20]=[CH:21][C:22]([F:24])=[CH:23][C:18]=1[O:17][C:14]1[CH:13]=[CH:12][C:11]([C:10]2[C:3]3[C:4](=[N:5][CH:6]=[N:7][C:2]=3[NH2:1])[N:8]([C@@H:26]3[CH2:31][CH2:30][CH2:29][NH:28][CH2:27]3)[N:9]=2)=[CH:16][CH:15]=1

Participants

Conditions

Temperature: 25 °C

Procedure

Into a 100 mL round-bottom flask, was placed a solution of tert-butyl (3R)-3-[4-amino-3-[4-(2,5-difluorophenoxy)phenyl]-1H-pyrazolo[3,4-d]pyrimidin-1-yl]piperidine-1-carboxylate (450 mg, 0.86 mmol, 1.00 equiv) in dichloromethane (40 mL). This was followed by the addition of CF3COOH (10 mL) dropwise with stirring at 25° C. over 5 min. The resulting solution was stirred for 3 h at 25° C. and then concentrated under vacuum. The residue was diluted with dichloromethane and the resulting mixture was washed with aqueous sodium bicarbonate and brine and dried over anhydrous sodium sulfate and concentrated under vacuum to give 400 mg (99%) of 3-[4-(2,5-difluorophenoxy)phenyl]-1-[(3R)-piperidin-3-yl]-1H-pyrazolo[3,4-d]pyrimidin-4-amine as a white solid.

Workup

customInto a 100 mL round-bottom flask, was placed
stirringThe resulting solution was stirred for 3 h at 25° C.
concentrationconcentrated under vacuum
additionThe residue was diluted with dichloromethane
washthe resulting mixture was washed with aqueous sodium bicarbonate and brine
dry with materialdried over anhydrous sodium sulfate
concentrationconcentrated under vacuum

Sources & evidence

ORD record: ord-ff2ed3e1e7b94f68b81f892f4e6b0ec5
Source dataset: uspto-grants-2014_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08759358B1

Reaction notes

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