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

HRID 1842617Notes

Reaction equation

HRID 1842617 reaction equation
[C:1](Cl)(=[O:4])[CH:2]=[CH2:3].[Cl:6][C:7]1[C:8]([C:31]2[CH:32]=[N:33][N:34]3[CH:39]=[CH:38][CH:37]=[CH:36][C:35]=23)=[N:9][C:10]([NH:13][C:14]2[C:19]([O:20][CH3:21])=[CH:18][C:17]([N:22]3[CH2:26][CH2:25][C@@H:24]([N:27]([CH3:29])[CH3:28])[CH2:23]3)=[C:16]([NH2:30])[CH:15]=2)=[N:11][CH:12]=1.CCN(C(C)C)C(C)C>C(Cl)Cl>[Cl:6][C:7]1[C:8]([C:31]2[CH:32]=[N:33][N:34]3[CH:39]=[CH:38][CH:37]=[CH:36][C:35]=23)=[N:9][C:10]([NH:13][C:14]2[C:19]([O:20][CH3:21])=[CH:18][C:17]([N:22]3[CH2:26][CH2:25][C@@H:24]([N:27]([CH3:29])[CH3:28])[CH2:23]3)=[C:16]([NH:30][C:1](=[O:4])[CH:2]=[CH2:3])[CH:15]=2)=[N:11][CH:12]=1

Participants

5

Reactant 3

HCID 13140Acryloyl chlorideHCID 81531DiisopropylethylamineHCID 86677235N-(5-Chloro-4-pyrazolo[1,5-a]pyridin-3-ylpyrimidin-2-yl)-4-[(3R)-3-dimethylaminopyrrolidin-1-yl]-6-methoxybenzene-1,3-diamine2×

Product 1

HCID 86677234N-{5-[(5-Chloro-4-pyrazolo[1,5-a]pyridin-3-ylpyrimidin-2-yl)amino]-2-[(3R)-3-dimethylaminopyrrolidin-1-yl]-4-methoxyphenyl}prop-2-enamideYield 58%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

A solution of acryloyl chloride (0.042 mL, 0.51 mmol) in CH2Cl2 (1 mL) was added dropwise to a mixture of N-(5-chloro-4-pyrazolo[1,5-a]pyridin-3-ylpyrimidin-2-yl)-4-[(3R)-3-dimethylamino-pyrrolidin-1-yl]-6-methoxybenzene-1,3-diamine (Intermediate 18, 245 mg, 0.51 mmol) and DIPEA (0.097 mL, 0.56 mmol) in CH2Cl2 (10 mL), which was cooled in an ice/water bath. The mixture was stirred for 2 h and then washed with brine, dried (Na2SO4) and concentrated in vacuo. Purification by FCC, eluting with 2% 7N methanolic ammonia in CH2Cl2 gave a foam after concentration in vacuo. This foam was triturated using CH2Cl2 and diethyl ether, and the resulting solid was collected by filtration and dried to give the title compound (157 mg, 58%) as a yellow solid; 1H NMR: 1.68-1.83 (1H, m), 2.05-2.16 (1H, m), 2.18 (6H, s), 2.64-2.76 (1H, m), 3.18-3.29 (3H, m), 3.36-3.47 (1H, m), 3.77 (3H, s), 5.67 (1H, dd), 6.16 (1H, dd), 6.48 (1H, dd), 6.54 (1H, s), 7.12 (1H, t), 7.37 (1H, t), 7.43 (1H, s), 8.28-8.46 (2H, m), 8.55 (1H, s), 8.83 (1H, d), 8.94 (1H, s), 9.37 (1H, s); m/z: ES+ MH+ 533.5.

Workup

  1. temperaturewas cooled in an ice/water bath
  2. washwashed with brine
  3. dry with materialdried (Na2SO4)
  4. concentrationconcentrated in vacuo
  5. customPurification by FCC
  6. washeluting with 2% 7N methanolic ammonia in CH2Cl2
  7. customgave a foam
  8. concentrationafter concentration in vacuo
  9. customThis foam was triturated
  10. filtrationthe resulting solid was collected by filtration
  11. customdried

Sources & evidence

ORD record
ord-8c3b74886ec1417cbc64dc5fe142932a
Source dataset
uspto-grants-2015_02
Patent number
US08946235B2

Reaction notes

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