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

HRID 1842660Notes

Reaction equation

HRID 1842660 reaction equation
[C:1](Cl)(=[O:4])[CH:2]=[CH2:3].[CH3:6][N:7]([CH3:38])[C@@H:8]1[CH2:12][CH2:11][N:10]([C:13]2[CH:18]=[C:17]([O:19][CH3:20])[C:16]([NH:21][C:22]3[N:27]=[C:26]([C:28]4[CH:29]=[N:30][N:31]5[CH:36]=[CH:35][CH:34]=[CH:33][C:32]=45)[CH:25]=[CH:24][N:23]=3)=[CH:15][C:14]=2[NH2:37])[CH2:9]1>C(Cl)Cl.CO.C(Cl)Cl>[CH3:38][N:7]([CH3:6])[C@@H:8]1[CH2:12][CH2:11][N:10]([C:13]2[CH:18]=[C:17]([O:19][CH3:20])[C:16]([NH:21][C:22]3[N:27]=[C:26]([C:28]4[CH:29]=[N:30][N:31]5[CH:36]=[CH:35][CH:34]=[CH:33][C:32]=45)[CH:25]=[CH:24][N:23]=3)=[CH:15][C:14]=2[NH:37][C:1](=[O:4])[CH:2]=[CH2:3])[CH2:9]1

Participants

5

Reactant 2

HCID 13140Acryloyl chlorideHCID 866773094-[(3R)-3-dimethylaminopyrrolidin-1-yl]-6-methoxy-N-(4-pyrazolo[1,5-a]pyridin-3-ylpyrimidin-2-yl)benzene-1,3-diamine2×

Product 1

HCID 86677308N-{2-[(3R)-3-Dimethylaminopyrrolidin-1-yl]-4-methoxy-5-[(4-pyrazolo[1,5-a]pyridin-3-ylpyrimidin-2-yl)amino]phenyl}prop-2-enamideYield 79%

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolvent2×HCID 21226129Dichloromethane methanolSolvent

Procedure

A solution of acryloyl chloride (64 μL, 0.79 mmol) in CH2Cl2 (4 mL) was added dropwise over 10 minutes to 4-[(3R)-3-dimethylaminopyrrolidin-1-yl]-6-methoxy-N-(4-pyrazolo[1,5-a]pyridin-3-ylpyrimidin-2-yl)benzene-1,3-diamine (Intermediate 153, 336 mg, 0.76 mmol) in CH2Cl2 (11 mL), which was cooled in an ice/CH3OH bath. The mixture was stirred for 0.5 h, and 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 (296 mg, 79%) as an orange solid after trituration with diethyl ether; 1H NMR: 1.70-1.81 (1H, m), 2.05-2.13 (1H, m), 2.18 (6H, s), 2.68-2.76 (1H, m), 3.17-3.27 (3H, m), 3.35-3.42 (1H, m), 3.84 (3H, s), 5.67 (1H, dd), 6.17 (1H, dd), 6.51 (1H, dd), 6.56 (1H, s), 7.05 (1H, dd), 7.21 (1H, d), 7.40-7.45 (1H, m), 7.84 (1H, s), 8.02 (1H, s), 8.30 (1H, d), 8.46 (1H, d), 8.76 (1H, s), 8.78 (1H, d), 9.35 (1H, s); m/z: ES+ MH+ 499.69.

Workup

  1. temperaturewas cooled in an ice/CH3OH bath
  2. washThe resulting solution was washed
  3. dry with materialNaHCO3, dried (MgSO4)
  4. concentrationconcentrated in vacuo
  5. customPurification by FCC
  6. washeluting with 0-5% methanolic ammonia in CH2Cl2

Sources & evidence

ORD record
ord-6f5482ec2e9144d2b1a053a5487e8cf0
Source dataset
uspto-grants-2015_02
Patent number
US08946235B2

Reaction notes

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