Trifluoroacetic acid → (4-Chloro-benzyl)[5-(7H-pyrrolo[2,3-d]pyrimidin-5-ylmethyl)-pyridin-2-yl]-amine

HRID 1692830Notes

Reaction equation

HRID 1692830 reaction equation
C(OC(=O)[N:7]([CH2:35][C:36]1[CH:41]=[CH:40][C:39]([Cl:42])=[CH:38][CH:37]=1)[C:8]1[CH:13]=[CH:12][C:11]([CH:14](O)[C:15]2[C:23]3[CH:22]=[N:21][CH:20]=[N:19][C:18]=3[N:17]([Si](C(C)C)(C(C)C)C(C)C)[CH:16]=2)=[CH:10][N:9]=1)(C)(C)C.C([SiH](CC)CC)C.FC(F)(F)C(O)=O>C(#N)C>[Cl:42][C:39]1[CH:40]=[CH:41][C:36]([CH2:35][NH:7][C:8]2[CH:13]=[CH:12][C:11]([CH2:14][C:15]3[C:23]4[CH:22]=[N:21][CH:20]=[N:19][C:18]=4[NH:17][CH:16]=3)=[CH:10][N:9]=2)=[CH:37][CH:38]=1

Participants

5

Reactant 3

HCID 6422Trifluoroacetic acidHCID 12052TriethylsilaneHCID 57963091(4-chloro-benzyl)-{5-[hydroxy-(7-triisopropylsilanyl-7H-pyrrolo[2,3-d]pyrimidin-5-yl)-methyl]-pyridin-2-yl}-carbamic acid tert-butyl ester

Product 1

HCID 44470392(4-Chloro-benzyl)[5-(7H-pyrrolo[2,3-d]pyrimidin-5-ylmethyl)-pyridin-2-yl]-amine

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Conditions

Temperature
80 °C

Procedure

(4-Chloro-benzyl)-5-[hydroxy-(7-triisopropylsilanyl-7H-pyrrolo[2,3-d]pyrimidin-5-yl)-methyl]-pyridin-2-yl-carbamic acid tert-butyl ester (43, 0.1 g, 0.16 mmol) was dissolved in 5 mL of acetonitrile and triethylsilane (0.25 mL, 1.6 mmol) was added followed by trifluoroacetic acid (0.12 mL,1.6 mmol). The reaction was stirred overnight at 80° C., then cooled and concentrated under vacuum. Ethyl acetate was added and the mixture was washed with 1 M potassium carbonate and brine. The organic portion was dried over anhydrous sodium sulfate, filtered and the filtrate concentrated under vacuum. The resulting material was purified by silica gel column chromatography eluting with a gradient of 0-20% methanol in dichloromethane. Appropriate fractions were combined and concentrated under vacuum to provide the desired compound, which was further washed with a mixture of ethyl acetate in hexane (P-0001, 0.025 g, 44%). MS (ESI) [M+H+]+=349.9.

Workup

  1. temperaturecooled
  2. concentrationconcentrated under vacuum
  3. additionEthyl acetate was added
  4. washthe mixture was washed with 1 M potassium carbonate and brine
  5. dry with materialThe organic portion was dried over anhydrous sodium sulfate
  6. filtrationfiltered
  7. concentrationthe filtrate concentrated under vacuum
  8. customThe resulting material was purified by silica gel column chromatography
  9. washeluting with a gradient of 0-20% methanol in dichloromethane
  10. concentrationconcentrated under vacuum

Sources & evidence

ORD record
ord-afa1342308cd44b98a30405b4824c7c4
Source dataset
uspto-grants-2012_04
Patent number
US08158636B2

Reaction notes

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