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Trifluoroacetic acid → 4-[5-(3-Methyl-5-{[4-(trifluoromethyl)pyrimidin-2-yl]amino}phenyl)-1,3-thiazol-2-yl]piperidin-4-ol

HRID 410559
Notes
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Reaction equation

HRID 410559 reaction equation
[OH:1][C:2]1([C:15]2[S:16][C:17]([C:20]3[CH:25]=[C:24]([NH:26][C:27]4[N:32]=[C:31]([C:33]([F:36])([F:35])[F:34])[CH:30]=[CH:29][N:28]=4)[CH:23]=[C:22]([CH3:37])[CH:21]=3)=[CH:18][N:19]=2)[CH2:7][CH2:6][N:5](C(OC(C)(C)C)=O)[CH2:4][CH2:3]1.C(O)(C(F)(F)F)=O.C([O-])(O)=O.[Na+]>C(Cl)Cl>[CH3:37][C:22]1[CH:21]=[C:20]([C:17]2[S:16][C:15]([C:2]3([OH:1])[CH2:3][CH2:4][NH:5][CH2:6][CH2:7]3)=[N:19][CH:18]=2)[CH:25]=[C:24]([NH:26][C:27]2[N:32]=[C:31]([C:33]([F:35])([F:36])[F:34])[CH:30]=[CH:29][N:28]=2)[CH:23]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 6422Trifluoroacetic acidHCID 516892Sodium BicarbonateHCID 58456305Tert-butyl 4-hydroxy-4-[5-(3-methyl-5-{[4-(trifluoromethyl)pyrimidin-2-yl]amino}phenyl)-1,3-thiazol-2-yl]piperidine-1-carboxylate

Product 1

HCID 584561264-[5-(3-Methyl-5-{[4-(trifluoromethyl)pyrimidin-2-yl]amino}phenyl)-1,3-thiazol-2-yl]piperidin-4-olYield 98.9%

Reagents, catalysts & solvents 1

HCID 6344
Dichloromethane
Solvent

Procedure

To tert-butyl 4-hydroxy-4-[5-(3-methyl-5-{[4-(trifluoromethyl)pyrimidin-2-yl]amino}phenyl)-1,3-thiazol-2-yl]piperidine-1-carboxylate (50 mg, 0.093 mmol) in DCM (1 mL) was added 144 uL TFA (20 eq) and the reaction stirred at rt for 4 h. To the mixture was added saturated aqueous NaHCO3 and extracted with ethyl acetate. The organic layer was washed with water and brine. The combined organic layer was dried, filtered. The solvent was reduced in vacuo to give 40 mg (0.092 mmol, 98%) of 4-[5-(3-methyl-5-{[4-(trifluoromethyl)pyrimidin-2-yl]amino}phenyl)-1,3-thiazol-2-yl]piperidin-4-ol. MS ESI: [M+H]+ m/z 436.2. 1H NMR (600 MHz, DMSO-d6): δ 8.81 (d, J=4.7 Hz, 1H); 7.93 (m, 2H), 7.44 (s, 1H); 7.25 (d, J=4.9 Hz, 1H); 7.13 (s, 1H); 5.97 (br s, 1H), 2.78-2.98 (m, 4H); 2.29 (s, 3H); 1.93-1.98 (m, 2H), 1.63-1.65 (m, 2H). rhSYK activity=+++

Workup

  1. extractionextracted with ethyl acetate
  2. washThe organic layer was washed with water and brine
  3. customThe combined organic layer was dried
  4. filtrationfiltered

Sources & evidence

ORD record
ord-43549f3dccc846ce910302cba3b457b1
Source dataset
uspto-grants-2014_06
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08759366B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes