1-[1-(1-tert-butoxycarbonyl-4-piperidinyl)-4-piperidinyl]-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine → 1-[1-(4-piperidinyl)-4-piperidinyl]-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine

HRID 432138Notes

Reaction equation

HRID 432138 reaction equation
C(OC([N:8]1[CH2:13][CH2:12][CH:11]([N:14]2[CH2:19][CH2:18][CH:17]([N:20]3[C:24]4=[N:25][CH:26]=[N:27][C:28]([NH2:29])=[C:23]4[C:22]([C:30]4[CH:35]=[CH:34][C:33]([O:36][C:37]5[CH:42]=[CH:41][CH:40]=[CH:39][CH:38]=5)=[CH:32][CH:31]=4)=[N:21]3)[CH2:16][CH2:15]2)[CH2:10][CH2:9]1)=O)(C)(C)C>FC(F)(F)C(O)=O.ClCCl>[NH:8]1[CH2:9][CH2:10][CH:11]([N:14]2[CH2:19][CH2:18][CH:17]([N:20]3[C:24]4=[N:25][CH:26]=[N:27][C:28]([NH2:29])=[C:23]4[C:22]([C:30]4[CH:35]=[CH:34][C:33]([O:36][C:37]5[CH:42]=[CH:41][CH:40]=[CH:39][CH:38]=5)=[CH:32][CH:31]=4)=[N:21]3)[CH2:16][CH2:15]2)[CH2:12][CH2:13]1

Participants

4

Reactant 1

HCID 223473271-[1-(1-tert-butoxycarbonyl-4-piperidinyl)-4-piperidinyl]-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine

Product 1

HCID 223469961-[1-(4-piperidinyl)-4-piperidinyl]-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amineYield 51.6%

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolventHCID 6422Trifluoroacetic acidSolvent

Procedure

1-[ 1-(1-tert-butoxycarbonyl-4-piperidinyl)-4-piperidinyl]-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine (254 mg, 0.446 mmol) was stirred in 25 ml of 10% trifluoroacetic acid in dichloromethane overnight. The solvent was evaporated and the residue was dissolved in dichloromethane. Saturated sodium bicarbonate was added and the resulting mixture was stirred for 30 minutes. The layers were separated and the aqueous layer was extracted with dichloromathane. The combined organic layer was washed, dried and evaporated to give 108 mg of 1-[1-(4-piperidinyl)-4-piperidinyl]-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine (Intermediate GG) which was used without further purification.

Workup

  1. customThe solvent was evaporated
  2. dissolutionthe residue was dissolved in dichloromethane
  3. additionSaturated sodium bicarbonate was added
  4. customThe layers were separated
  5. extractionthe aqueous layer was extracted with dichloromathane
  6. washThe combined organic layer was washed
  7. customdried
  8. customevaporated

Sources & evidence

ORD record
ord-171c49b12a244d7da82f19cb66403d9a
Source dataset
uspto-grants-2003_12
Patent number
US06660744B1

Reaction notes

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