Acryloyl chloride → N-{2-(3-Dimethylaminoazetidin-1-yl)-4-methoxy-5-[(4-pyrazolo[1,5-a]pyridin-3-ylpyrimidin-2-yl)amino]phenyl}prop-2-enamide

HRID 1842661Notes

Reaction equation

HRID 1842661 reaction equation
[C:1](Cl)(=[O:4])[CH:2]=[CH2:3].[CH3:6][N:7]([CH3:37])[CH:8]1[CH2:11][N:10]([C:12]2[CH:17]=[C:16]([O:18][CH3:19])[C:15]([NH:20][C:21]3[N:26]=[C:25]([C:27]4[CH:28]=[N:29][N:30]5[CH:35]=[CH:34][CH:33]=[CH:32][C:31]=45)[CH:24]=[CH:23][N:22]=3)=[CH:14][C:13]=2[NH2:36])[CH2:9]1>C(Cl)Cl.CO.C(Cl)Cl>[CH3:37][N:7]([CH3:6])[CH:8]1[CH2:9][N:10]([C:12]2[CH:17]=[C:16]([O:18][CH3:19])[C:15]([NH:20][C:21]3[N:26]=[C:25]([C:27]4[CH:28]=[N:29][N:30]5[CH:35]=[CH:34][CH:33]=[CH:32][C:31]=45)[CH:24]=[CH:23][N:22]=3)=[CH:14][C:13]=2[NH:36][C:1](=[O:4])[CH:2]=[CH2:3])[CH2:11]1

Participants

5

Reactant 2

HCID 13140Acryloyl chlorideHCID 866773114-(3-dimethylaminoazetidin-1-yl)-6-methoxy-N-(4-pyrazolo[1,5-a]pyridin-3-ylpyrimidin-2-yl)benzene-1,3-diamine2×

Product 1

HCID 86677310N-{2-(3-Dimethylaminoazetidin-1-yl)-4-methoxy-5-[(4-pyrazolo[1,5-a]pyridin-3-ylpyrimidin-2-yl)amino]phenyl}prop-2-enamideYield 66%

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolvent2×HCID 21226129Dichloromethane methanolSolvent

Procedure

A solution of acryloyl chloride (49 μL, 0.60 mmol) in CH2Cl2 (2.77 mL) was added dropwise over 5 minutes to 4-(3-dimethylaminoazetidin-1-yl)-6-methoxy-N-(4-pyrazolo[1,5-a]pyridin-3-ylpyrimidin-2-yl)benzene-1,3-diamine (Intermediate 156, 246 mg, 0.57 mmol) in CH2Cl2 (8.3 mL), which was cooled in an ice/CH3OH bath. The mixture was stirred for 0.5 h asn was then diluted with 10% CH3OH/CH2Cl2. The resulting solution was washed with sat. NaHCO3, dried (MgSO4) and concentrated in vacuo. Purification by FCC, eluting with 0-5% methanolic ammonia in CH2Cl2 gave the title compound (182 mg, 66%) as a yellow solid after trituration with diethyl ether; 1H NMR: 2.09 (6H, s), 3.04-3.12 (1H, m), 3.55-3.60 (2H, m), 3.83 (3H, s), 3.96 (2H, t), 5.67 (1H, dd), 6.18 (1H, dd), 6.26 (1H, s), 6.48 (1H, dd), 7.05 (1H, td), 7.20 (1H, d), 7.41-7.46 (1H, m), 7.71 (1H, s), 8.00 (1H, s), 8.29 (1H, d), 8.43 (1H, br d), 8.75 (1H, s), 8.77 (1H, d), 9.29 (1H, s); m/z: ES+ MH+ 485.69.

Workup

  1. temperaturewas cooled in an ice/CH3OH bath
  2. washThe resulting solution was washed with sat. NaHCO3
  3. dry with materialdried (MgSO4)
  4. concentrationconcentrated in vacuo
  5. customPurification by FCC
  6. washeluting with 0-5% methanolic ammonia in CH2Cl2

Sources & evidence

ORD record
ord-9e6f98b0eff04604adbf9732a301c2e4
Source dataset
uspto-grants-2015_02
Patent number
US08946235B2

Reaction notes

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