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Trifluoroacetic acid → 2-[5-chloro-1-(p-tolylsulfonyl)pyrrolo[2,3-b]pyridin-3-yl]-5-fluoro-N-[(3S)-3-piperidyl]pyrimidin-4-amine

HRID 74863
Notes
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Reaction equation

HRID 74863 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]2[C:10]([C:11]3[N:16]=[C:15]([NH:17][C@H:18]4[CH2:23][CH2:22][CH2:21][N:20](C(OC(C)(C)C)=O)[CH2:19]4)[C:14]([F:31])=[CH:13][N:12]=3)=[CH:9][N:8]([S:32]([C:35]3[CH:40]=[CH:39][C:38]([CH3:41])=[CH:37][CH:36]=3)(=[O:34])=[O:33])[C:5]2=[N:6][CH:7]=1.FC(F)(F)C(O)=O>C(Cl)Cl>[Cl:1][C:2]1[CH:3]=[C:4]2[C:10]([C:11]3[N:16]=[C:15]([NH:17][C@H:18]4[CH2:23][CH2:22][CH2:21][NH:20][CH2:19]4)[C:14]([F:31])=[CH:13][N:12]=3)=[CH:9][N:8]([S:32]([C:35]3[CH:40]=[CH:39][C:38]([CH3:41])=[CH:37][CH:36]=3)(=[O:34])=[O:33])[C:5]2=[N:6][CH:7]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 68007804(S)-tert-butyl 3-(2-(5-chloro-1-tosyl-1H-pyrrolo[2,3-b]pyridin-3-yl)-5-fluoropyrimidin-4-ylamino)piperidine-1-carboxylate

Product 1

HCID 672851192-[5-chloro-1-(p-tolylsulfonyl)pyrrolo[2,3-b]pyridin-3-yl]-5-fluoro-N-[(3S)-3-piperidyl]pyrimidin-4-amine

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of tert-butyl (3S)-3-[[2-[5-chloro-1-(p-tolylsulfonyl)pyrrolo[5,4-b]pyridin-3-yl]-5-fluoro-pyrimidin-4-yl]amino]piperidine-1-carboxylate, 1b, (2.1 g, 3.5 mmol) in CH2Cl2 (30 mL) was added trifluoroacetic acid (20 mL). After stirring the reaction mixture at room temperature for 75 min, the mixture was concentrated under vacuo. The crude residue was diluted with EtOAc and neutralized with 1N sodium hydroxide solution. The aqueous phase was separated and extracted again with EtOAc. The combined organic phases were dried (MgSO4), filtered and concentrated under vacuo to afford the desired product (1c) as a light yellow solid.

Workup

  1. concentrationthe mixture was concentrated under vacuo
  2. additionThe crude residue was diluted with EtOAc and neutralized with 1N sodium hydroxide solution
  3. customThe aqueous phase was separated
  4. extractionextracted again with EtOAc
  5. dry with materialThe combined organic phases were dried (MgSO4)
  6. filtrationfiltered
  7. concentrationconcentrated under vacuo

Sources & evidence

ORD record
ord-d1895e071d294933bc31a931cb83aaf4
Source dataset
uspto-grants-2014_09
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08829007B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes