Trifluoroacetic acid → [6-(6-ethoxy-pyridin-3-ylamino)-2-fluoro-pyridin-3-yl]-(5-methyl-1H-pyrrolo[2,3-b]pyridin-3-yl)-methanone

HRID 1396169Notes

Reaction equation

HRID 1396169 reaction equation
C(OC(=O)[N:7]([C:37]1[CH:38]=[N:39][C:40]([O:43][CH2:44][CH3:45])=[CH:41][CH:42]=1)[C:8]1[CH:13]=[CH:12][C:11]([C:14]([C:16]2[C:24]3[C:19](=[N:20][CH:21]=[C:22]([CH3:25])[CH:23]=3)[N:18]([Si](C(C)C)(C(C)C)C(C)C)[CH:17]=2)=[O:15])=[C:10]([F:36])[N:9]=1)(C)(C)C.FC(F)(F)C(O)=O.C(=O)([O-])[O-].[K+].[K+]>ClCCCl>[CH2:44]([O:43][C:40]1[N:39]=[CH:38][C:37]([NH:7][C:8]2[N:9]=[C:10]([F:36])[C:11]([C:14]([C:16]3[C:24]4[C:19](=[N:20][CH:21]=[C:22]([CH3:25])[CH:23]=4)[NH:18][CH:17]=3)=[O:15])=[CH:12][CH:13]=2)=[CH:42][CH:41]=1)[CH3:45]

Participants

5

Reactant 3

HCID 6422Trifluoroacetic acidHCID 11430Potassium CarbonateHCID 58485918(6-ethoxy-pyridin-3-yl)-[6-fluoro-5-(5-methyl-1-triisopropylsilanyl-1H-pyrrolo[2,3-b]pyridine-3-carbonyl)-pyridin-2-yl]-carbamic acid tert-butyl ester

Product 1

HCID 67442878[6-(6-ethoxy-pyridin-3-ylamino)-2-fluoro-pyridin-3-yl]-(5-methyl-1H-pyrrolo[2,3-b]pyridin-3-yl)-methanoneYield 50.2%

Reagents, catalysts & solvents 1

HCID 111,2-DichloroethaneSolvent

Conditions

Temperature
80 °C

Procedure

To (6-ethoxy-pyridin-3-yl)-[6-fluoro-5-(5-methyl-1-triisopropylsilanyl-1H-pyrrolo[2,3-b]pyridine-3-carbonyl)-pyridin-2-yl]-carbamic acid tert-butyl ester (71, 0.200 g, 0.309 mmol) in 10 mL of 1,2-dichloroethane, trifluoroacetic acid (0.80 mL, 10.0 mmol) is added. The reaction is stirred at 80° C. for 2 hours, then poured into aqueous potassium carbonate and extracted with ethyl acetate. The organic layer is dried over sodium sulfate, filtered and the filtrate concentrated under vacuum. The resulting material is purified by silica gel column chromatography, eluting with 2-15% methanol in dichloromethane. Appropriate fractions are combined and concentrated under vacuum to provide the desired compound (P-3045, 60.7 mg). MS (ESI) [M+H+]+=391.9.

Workup

  1. extractionextracted with ethyl acetate
  2. dry with materialThe organic layer is dried over sodium sulfate
  3. filtrationfiltered
  4. concentrationthe filtrate concentrated under vacuum
  5. customThe resulting material is purified by silica gel column chromatography
  6. washeluting with 2-15% methanol in dichloromethane
  7. concentrationconcentrated under vacuum

Sources & evidence

ORD record
ord-86896253138c4010bfce734b454bab4e
Source dataset
uspto-grants-2014_12
Patent number
US08901118B2

Reaction notes

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