Acetic Acid → 1-{4-[4-(3-{(1S)-1-[2-Chloro-6-(difluoromethoxy)-3-fluorophenyl]ethyl}-1H-pyrrolo[2,3-b]pyridin-5-yl)-5-methyl-1H-pyrazol-1-yl]piperidin-1-yl}ethanone

HRID 2095729Notes

Reaction equation

HRID 2095729 reaction equation
[Cl:1][C:2]1[C:7]([F:8])=[CH:6][CH:5]=[C:4]([O:9][CH:10]([F:12])[F:11])[C:3]=1[C@H:13]([C:15]1[C:23]2[C:18](=[N:19][CH:20]=[C:21]([C:24]3[CH:25]=[N:26][N:27]([CH:30]4[CH2:35][CH2:34][NH:33][CH2:32][CH2:31]4)[C:28]=3[CH3:29])[CH:22]=2)[NH:17][CH:16]=1)[CH3:14].[C:36](O)(=[O:38])[CH3:37].CN(C(ON1N=NC2C=CC=CC1=2)=[N+](C)C)C.[B-](F)(F)(F)F.C(N(CC)CC)C.C(Cl)Cl>>[Cl:1][C:2]1[C:7]([F:8])=[CH:6][CH:5]=[C:4]([O:9][CH:10]([F:12])[F:11])[C:3]=1[C@H:13]([C:15]1[C:23]2[C:18](=[N:19][CH:20]=[C:21]([C:24]3[CH:25]=[N:26][N:27]([CH:30]4[CH2:31][CH2:32][N:33]([C:36](=[O:38])[CH3:37])[CH2:34][CH2:35]4)[C:28]=3[CH3:29])[CH:22]=2)[NH:17][CH:16]=1)[CH3:14]

Participants

6

Reactant 5

HCID 176Acetic AcidHCID 6344DichloromethaneHCID 8471TriethylamineHCID 2733207O-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborateHCID 546735943-{(1S)-1-[2-Chloro-6-(difluoromethoxy)-3-fluorophenyl]ethyl}-5-[5-methyl-1-(piperidin-4-yl)-1H-pyrazol-4-yl]-1H-pyrrolo[2,3-b]pyridine

Product 1

HCID 546735931-{4-[4-(3-{(1S)-1-[2-Chloro-6-(difluoromethoxy)-3-fluorophenyl]ethyl}-1H-pyrrolo[2,3-b]pyridin-5-yl)-5-methyl-1H-pyrazol-1-yl]piperidin-1-yl}ethanone

Procedure

A mixture of 3-{(1S)-1-[2-chloro-6-(difluoromethoxy)-3-fluorophenyl]ethyl}-5-[5-methyl-1-(piperidin-4-yl)-1H-pyrazol-4-yl]-1H-pyrrolo[2,3-b]pyridine (40.0 mg, 0.0794 mmol), acetic acid (23.8 mg, 0.397 mmol), TBTU (51.0 mg, 0.159 mmol), triethylamine (40.2 mg, 0.397 mmol) and DCM (4 mL, 60 mmol) was stirred at rt for 10 min. The solution was extracted with EtOAc, washed with 1 M HCl, and then sat. NaHCO3. The organic layer was concentrated in vacuo, loaded onto silica gel and purified via column chromatography. The product was eluted with 2-3% (7N NH3 in MeOH)/DCM, and the fractions containing the pure product were concentrated in vacuo to afford the title compound as a white solid. 1H NMR (400 MHz, CD3OD): δ=1.84 (d, J=7.3 Hz, 3H), 1.93-2.04 (m, 3H), 2.12 (dd, J=15.4, 2.5 Hz, 1H), 2.16 (s, 3H), 2.26 (s, 3H), 2.76-2.88 (m, 1H), 3.32-3.35 (m, 1H), 4.08 (dd, J=14.0, 1.9 Hz, 1H), 4.43-4.54 (m, 1H), 4.64-4.73 (m, 1H), 5.11 (q, J=7.0 Hz, 1H), 6.43 (br. s., 1H), 7.12 (dd, J=8.8, 4.5 Hz, 1H), 7.19 (t, J=8.7 Hz, 1H), 7.38 (d, J=1.8 Hz, 1H), 7.39 (d, J=1.3 Hz, 1H), 7.48 (s, 1H), 8.13 (d, J=2.0 Hz, 1H). MS (ES+): m/z=546.17/548.18 (100/50) [MH+]. HPLC: tR=1.43 min (polar—3 min, UPLC-ACQUITY).

Workup

  1. extractionThe solution was extracted with EtOAc
  2. washwashed with 1 M HCl
  3. concentrationThe organic layer was concentrated in vacuo
  4. custompurified via column chromatography
  5. washThe product was eluted with 2-3% (7N NH3 in MeOH)/DCM
  6. additionthe fractions containing the pure product
  7. concentrationwere concentrated in vacuo

Sources & evidence

ORD record
ord-f5298ae7dbf34b0597a5874359b90d9e
Source dataset
uspto-grants-2013_05
Patent number
US08445510B2

Reaction notes

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