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

HRID 1842622Notes

Reaction equation

HRID 1842622 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 86677245N-(5-Chloro-4-pyrazolo[1,5-a]pyridin-3-ylpyrimidin-2-yl)-4-[(3S)-3-dimethylaminopyrrolidin-1-yl]-6-methoxybenzene-1,3-diamine2×

Product 1

HCID 86677244N-{5-[(5-Chloro-4-pyrazolo[1,5-a]pyridin-3-ylpyrimidin-2-yl)amino]-2-[(3S)-3-dimethylaminopyrrolidin-1-yl]-4-methoxyphenyl}prop-2-enamideYield 70%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

A solution of acryloyl chloride (0.042 mL, 0.52 mmol) in CH2Cl2 (1 mL) was added dropwise to a mixture of (S)—N1-[5-chloro-4-(pyrazolo[1,5-a]pyridin-3-yl)pyrimidin-2-yl]-4-[3-(dimethylamino)pyrrolidin-1-yl]-6-methoxybenzene-1,3-diamine (Intermediate 61, 250 mg, 0.52 mmol) and DIPEA (0.099 mL, 0.57 mmol) in CH2Cl2 (5 mL), which was cooled in an ice/water bath. The mixture was stirred for 3 h and then washed with brine, dried (Na2SO4) and concentrated in vacuo. Purification by FCC, eluting with 2% 7N methanolic ammonia in CH2Cl2 gave the title compound (194 mg, 70%) as a yellow solid; 1H NMR: 1.69-1.83 (1H, m), 2.05-2.16 (1H, m), 2.19 (6H, s), 2.65-2.78 (1H, m), 3.18-3.29 (3H, m), 3.35-3.46 (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), 8.3-8.46 (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

Sources & evidence

ORD record
ord-e843ac2262854eb4a72b89b3c3bf448f
Source dataset
uspto-grants-2015_02
Patent number
US08946235B2

Reaction notes

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