Ethylenediamine → 4-[4-(3,5-difluorobenzoyl)piperazin-1-yl]-3-[4-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]butanenitrile

HRID 1772768Notes

Reaction equation

HRID 1772768 reaction equation
[F:1][C:2]1[CH:3]=[C:4]([CH:8]=[C:9]([F:11])[CH:10]=1)[C:5](Cl)=[O:6].Cl.[N:13]1([CH2:19][CH:20]([N:24]2[CH:28]=[C:27]([C:29]3[C:30]4[CH:37]=[CH:36][N:35](COCC[Si](C)(C)C)[C:31]=4[N:32]=[CH:33][N:34]=3)[CH:26]=[N:25]2)[CH2:21][C:22]#[N:23])[CH2:18][CH2:17][NH:16][CH2:15][CH2:14]1.C(N(CC)CC)C.FC(F)(F)C(O)=O.C(N)CN>C(#N)C.CO.C(Cl)Cl>[F:1][C:2]1[CH:3]=[C:4]([CH:8]=[C:9]([F:11])[CH:10]=1)[C:5]([N:16]1[CH2:15][CH2:14][N:13]([CH2:19][CH:20]([N:24]2[CH:28]=[C:27]([C:29]3[C:30]4[CH:37]=[CH:36][NH:35][C:31]=4[N:32]=[CH:33][N:34]=3)[CH:26]=[N:25]2)[CH2:21][C:22]#[N:23])[CH2:18][CH2:17]1)=[O:6]

Participants

9

Reactant 5

HCID 3301EthylenediamineHCID 6422Trifluoroacetic acidHCID 8471TriethylamineHCID 1456003,5-Difluorobenzoyl chlorideHCID 670549114-piperazin-1-yl-3-[4-(7-{[2-(trimethylsilyl)ethoxy]methyl}-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]butanenitrile hydrochloride

Product 1

HCID 509956424-[4-(3,5-difluorobenzoyl)piperazin-1-yl]-3-[4-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]butanenitrile

Reagents, catalysts & solvents 3

HCID 887MethanolSolventHCID 6342AcetonitrileSolventHCID 6344DichloromethaneSolvent

Procedure

3,5-Difluorobenzoyl chloride (8.44 mg, 0.0478 mmol), 4-piperazin-1-yl-3-[4-(7-{[2-(trimethylsilyl)ethoxy]methyl}-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]butanenitrile hydrochloride (from example 1, step 4; 0.02 g, 0.0398 mmol) and triethylamine (16.6 μL, 0.119 mmol) were mixed in acetonitrile (0.2 mL). The mixture was stirred at RT for 1 h. Solvents were evaporated. The crude product was treated with DCM (0.2 mL) and trifluoroacetic acid (0.2 mL, 0.002 mol) for 30 min. The reaction mixture was evaporated under reduced pressure. To the resultant residue was added methanol (1 mL) and ethylenediamine (0.1 mL, 0.001 mol). The reaction mixture was stirred at RT for 30 min and concentrated under reduced pressure. The residue was purified on RP-HPLC (XBridge C-18 Column, eluting with a gradient of acetonitrile/water containing 0.15% NH4OH, at flow rate 30 mL/min) to give the desired product. LCMS calculated for C24H23F2N8O(M+H)+: m/z=477.2; Found: 477.0.

Workup

  1. customSolvents were evaporated
  2. customThe reaction mixture was evaporated under reduced pressure
  3. stirringThe reaction mixture was stirred at RT for 30 min
  4. concentrationconcentrated under reduced pressure
  5. customThe residue was purified on RP-HPLC (XBridge C-18 Column
  6. washeluting with a gradient of acetonitrile/water containing 0.15% NH4OH, at flow rate 30 mL/min)

Sources & evidence

ORD record
ord-9cbe6f915fe344268a22f46498ab23e9
Source dataset
uspto-grants-2016_02
Patent number
US09249145B2

Reaction notes

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