Trifluoroacetic acid → (2-chloro-benzyl)-[6-fluoro-5-(1H-pyrrolo[2,3-b]pyridin-3-ylmethyl)-pyridin-2-yl]-amine

HRID 1952153Notes

Reaction equation

HRID 1952153 reaction equation
[Cl:1][C:2]1[CH:37]=[CH:36][CH:35]=[CH:34][C:3]=1[CH2:4][NH:5][C:6]1[N:11]=[C:10]([F:12])[C:9]([CH:13]([C:15]2[C:23]3[C:18](=[N:19][CH:20]=[CH:21][CH:22]=3)[N:17]([Si](C(C)C)(C(C)C)C(C)C)[CH:16]=2)O)=[CH:8][CH:7]=1.C([SiH](CC)CC)C.FC(F)(F)C(O)=O.C(=O)([O-])[O-].[K+].[K+]>C(#N)C>[Cl:1][C:2]1[CH:37]=[CH:36][CH:35]=[CH:34][C:3]=1[CH2:4][NH:5][C:6]1[CH:7]=[CH:8][C:9]([CH2:13][C:15]2[C:23]3[C:18](=[N:19][CH:20]=[CH:21][CH:22]=3)[NH:17][CH:16]=2)=[C:10]([F:12])[N:11]=1

Participants

6

Reactant 4

HCID 6422Trifluoroacetic acidHCID 11430Potassium CarbonateHCID 12052TriethylsilaneHCID 68804150[6-(2-chloro-benzylamino)-2-fluoro-pyridin-3-yl]-(1-triisopropylsilanyl-1H-pyrrolo[2,3-b]pyridin-3-yl)-methanol

Product 1

HCID 57619384(2-chloro-benzyl)-[6-fluoro-5-(1H-pyrrolo[2,3-b]pyridin-3-ylmethyl)-pyridin-2-yl]-amine

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

To [6-(2-chloro-benzylamino)-2-fluoro-pyridin-3-yl]-(1-triisopropylsilanyl-1H-pyrrolo[2,3-b]pyridin-3-yl)-methanol (606, 180.0 mg, 0.33 mmol) in acetonitrile (15.0 mL) were added triethylsilane (1.00 mL, 6.26 mmol) and trifluoroacetic acid (0.50 mL, 6.50 mmol). The reaction was heated to reflux for 2 hours, then poured into aqueous potassium carbonate and extracted with ethyl acetate. The organic layer was dried over anhydrous sodium sulfate and filtered. The filtrate was concentrated and purified by silica gel column chromatography eluting with 20% to 100% ethyl acetate in hexane to give a white solid (P-0335, 24.9 mg, 19.4%). MS (ESI) [M+H+]+=367.0.

Workup

  1. temperatureThe reaction was heated
  2. temperatureto reflux for 2 hours
  3. extractionextracted with ethyl acetate
  4. dry with materialThe organic layer was dried over anhydrous sodium sulfate
  5. filtrationfiltered
  6. concentrationThe filtrate was concentrated
  7. custompurified by silica gel column chromatography
  8. washeluting with 20% to 100% ethyl acetate in hexane
  9. customto give a white solid (P-0335, 24.9 mg, 19.4%)

Sources & evidence

ORD record
ord-37b88b7710b74c478fd84d65eb13274b
Source dataset
uspto-grants-2013_03
Patent number
US08404700B2

Reaction notes

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