1,2-Dichloroethane → US9611269, Example 22

HRID 2363316Notes

Reaction equation

HRID 2363316 reaction equation
[C:1]([CH2:3][C:4]1([N:18]2[CH:22]=[C:21]([C:23]3[C:24]4[CH:31]=[CH:30][N:29](COCC[Si](C)(C)C)[C:25]=4[N:26]=[CH:27][N:28]=3)[CH:20]=[N:19]2)[CH2:7][N:6]([C:8]2[CH:16]=[CH:15][C:11]([C:12](O)=[O:13])=[C:10]([F:17])[CH:9]=2)[CH2:5]1)#[N:2].C(N(CC)C(C)C)(C)C.F[P-](F)(F)(F)(F)F.C[N+:57](C)=C(N(C)C)ON1C2N=CC=CC=2N=N1.[F:73][C:74]([F:79])([F:78])C(O)=O.Cl[CH2:81][CH2:82]Cl>>[C:1]([CH2:3][C:4]1([N:18]2[CH:22]=[C:21]([C:23]3[C:24]4[CH:31]=[CH:30][NH:29][C:25]=4[N:26]=[CH:27][N:28]=3)[CH:20]=[N:19]2)[CH2:7][N:6]([C:8]2[CH:16]=[CH:15][C:11]([C:12]([NH:57][C@@H:81]([CH3:82])[C:74]([F:79])([F:78])[F:73])=[O:13])=[C:10]([F:17])[CH:9]=2)[CH2:5]1)#[N:2]

Participants

6

Reactant 5

HCID 111,2-DichloroethaneHCID 6422Trifluoroacetic acidHCID 81531DiisopropylethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 711436084-{3-(cyanomethyl)-3-[4-(7-{[2-(trimethylsilyl)ethoxy]methyl}-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]azetidin-1-yl}-2-fluorobenzoic acid

Product 1

HCID 71155372US9611269, Example 22

Procedure

To a solution of 4-{3-(cyanomethyl)-3-[4-(7-{[2-(trimethylsilyl)ethoxy]methyl}-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]azetidin-1-yl}-2-fluorobenzoic acid (25 mg, 0.046 mmol) (Example 15, Step 2) and N,N-diisopropylethylamine (24 μL, 0.14 mmol) in 1,2-dichloroethane (0.5 mL) was added sequentially N,N,N′,N′-tetramethyl-O-(7-azabenzotriazol-1-yl)uronium hexafluorophosphate (26 mg, 0.068 mmol) and (23)-1,1,1-trifluoropropan-2-amine (12 mg, 0.11 mmol). After stirring at ambient temperature for 1.5 h, trifluoroacetic acid (0.5 mL) was added to the reaction mixture and stirring was continued for 1 h. The volatiles were removed in-vacuo and the residue was azeotropically washed with acetonitrile (3×3 mL). The resulting residue was dissolved in methanol (1 mL) and to this was added ammonium hydroxide (0.1 mL) and ethylenediamine (0.020 mL) and the reaction mixture was stirred at ambient temperature for 1 hour. The crude reaction mixture was subjected to RP-HPLC to afford the desired product. LCMS (M+H)+: m/z=513.1. 1H NMR (500 MHz, DMSO-d6): δ 12.64 (s, 1H), 9.06 (s, 1H), 8.85 (s, 1H), 8.56 (s, 1H), 8.33 (dd, J=8.9, 1.8 Hz, 1H), 7.79 (s, 1H), 7.52 (t, J=8.5 Hz, 1H), 7.23 (s, 1H), 6.47 (s, 1H), 6.45-6.42 (m, 1H), 4.83-4.75 (m, 1H), 4.59 (dd, J=8.9, 1.7 Hz, 2H), 4.34 (d, J=8.9 Hz, 2H), 3.77 (s, 2H), 1.31 (d, J=7.1 Hz, 3H).

Workup

  1. stirringstirring
  2. waitwas continued for 1 h
  3. customThe volatiles were removed in-vacuo
  4. washthe residue was azeotropically washed with acetonitrile (3×3 mL)
  5. dissolutionThe resulting residue was dissolved in methanol (1 mL)
  6. additionto this was added ammonium hydroxide (0.1 mL) and ethylenediamine (0.020 mL)
  7. stirringthe reaction mixture was stirred at ambient temperature for 1 hour
  8. customThe crude reaction mixture

Sources & evidence

ORD record
ord-2663eceaa78c4d73bff3f74e9f56a8a7
Source dataset
uspto-grants-2014_04
Patent number
US08691807B2

Reaction notes

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