Hydrochloric Acid → 1-Cyclopropyl-2,2,2-trifluoro-1-[5-(3-{[4-(trifluoromethyl)pyrimidin-2-yl]amino}phenyl)-1,3-thiazol-2-yl]ethanol

HRID 1040000Notes

Reaction equation

HRID 1040000 reaction equation
[CH:1]1([C:4]([C:6]2[S:7][C:8]([C:11]3[CH:16]=[CH:15][CH:14]=[C:13]([NH:17][C:18]4[N:23]=[C:22]([C:24]([F:27])([F:26])[F:25])[CH:21]=[CH:20][N:19]=4)[CH:12]=3)=[CH:9][N:10]=2)=[O:5])[CH2:3][CH2:2]1.[F:28][C:29]([Si](C)(C)C)([F:31])[F:30].[F-].C[N+](C)(C)C.CC([O-])(C)C.[K+].CCCC[N+](CCCC)(CCCC)CCCC.[F-].Cl>O1CCCC1.CCCC[N+](CCCC)(CCCC)CCCC.[F-].CCOCC>[CH:1]1([C:4]([C:6]2[S:7][C:8]([C:11]3[CH:16]=[CH:15][CH:14]=[C:13]([NH:17][C:18]4[N:23]=[C:22]([C:24]([F:25])([F:26])[F:27])[CH:21]=[CH:20][N:19]=4)[CH:12]=3)=[CH:9][N:10]=2)([OH:5])[C:29]([F:31])([F:30])[F:28])[CH2:3][CH2:2]1

Participants

10

Reactant 6

HCID 313Hydrochloric AcidHCID 67803Tetramethylammonium fluorideHCID 552549(Trifluoromethyl)trimethylsilane3×HCID 2724141Tetrabutylammonium FluorideHCID 23665647Potassium tert-butoxideHCID 58456406HCID 58456406, compound

Product 1

HCID 584563141-Cyclopropyl-2,2,2-trifluoro-1-[5-(3-{[4-(trifluoromethyl)pyrimidin-2-yl]amino}phenyl)-1,3-thiazol-2-yl]ethanolYield 67.6%

Reagents, catalysts & solvents 3

HCID 2724141Tetrabutylammonium FluorideCatalystHCID 3283Diethyl EtherSolventHCID 8028TetrahydrofuranSolvent

Procedure

TBAF (1 M, 3.71 μL, 3.71 μmol) was added to a stirred, cooled (0° C.) mixture of cyclopropyl[5-(3-{[4-(trifluoromethyl)pyrimidin-2-yl]amino}phenyl)-1,3-thiazol-2-yl]methanone (29 mg, 0.074 mmol) and (trifluoromethyl)trimethylsilane (14.24 μL, 0.089 mmol) in tetrahydrofuran (0.2 mL) and the mixture was stirred at room temperature for 4 h. Additional TMSCF3 (20 μL) and tetramethyammonium fluoride (0.811 mg, 7.43 mop were added and the mixture was left to stir overnight. Additional TMSCF3 (22 μL) and KOtBu (1M in THF, 74 μL) were added to the mixture and left to stir for 2 days. The mixture was treated with TBAF (74 μL), ether and HCl, and extracted with ethyl acetate. The combined organics were concentrated, and purified by flash chromatography to give 1-cyclopropyl-2,2,2-trifluoro-1-[5-(3-{[4-(trifluoromethyl)-pyrimidin-2-yl]amino}phenyl)-1,3-thiazol-2-yl]ethanol (23 mg, 0.050 mmol, 67.2% yield). APCI: [M+H]+ m/z 461.1. 1H NMR (400 MHz, CDCl3): δ 8.72 (d, J=4.9 Hz, 1H); 8.19 (s, 1H); 7.97 (s, 1H); 7.52 (d, J=8.3 Hz, 1H); 7.48-7.40 (m, 2H); 7.32 (d, J=7.8 Hz, 1H); 7.12 (d, J=4.9 Hz, 1H); 4.53 (s, 1H); 1.58-1.51 (m, 1H); 1.01-0.94 (m, 1H); 0.77-0.67 (m, 1H); 0.59-0.51 (m, 2H). rhSYK activity=+++

Workup

  1. temperaturecooled
  2. waitthe mixture was left
  3. stirringto stir overnight
  4. waitleft
  5. stirringto stir for 2 days
  6. extractionextracted with ethyl acetate
  7. concentrationThe combined organics were concentrated
  8. custompurified by flash chromatography

Sources & evidence

ORD record
ord-3cd50a1286e34a6e87ea00492891f0f0
Source dataset
uspto-grants-2013_10
Patent number
US08551984B2

Reaction notes

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