Acryloyl chloride → N-(4-Methoxy-2-{8-methyl-2,8-diazaspiro[3.4]octan-2-yl}-5-{[4-(4,5,6,7-tetrahydropyrazolo[1,5-a]pyridin-3-yl)pyrimidin-2-yl]amino}phenyl)prop-2-enamide

HRID 1842655Notes

Reaction equation

HRID 1842655 reaction equation
[C:1](Cl)(=[O:4])[CH:2]=[CH2:3].[CH3:6][O:7][C:8]1[CH:13]=[C:12]([N:14]2[CH2:17][C:16]3([N:21]([CH3:22])[CH2:20][CH2:19][CH2:18]3)[CH2:15]2)[C:11]([NH2:23])=[CH:10][C:9]=1[NH:24][C:25]1[N:30]=[C:29]([C:31]2[CH:32]=[N:33][N:34]3[CH2:39][CH2:38][CH2:37][CH2:36][C:35]=23)[CH:28]=[CH:27][N:26]=1.CCN(C(C)C)C(C)C>C(Cl)Cl>[CH3:6][O:7][C:8]1[C:9]([NH:24][C:25]2[N:30]=[C:29]([C:31]3[CH:32]=[N:33][N:34]4[CH2:39][CH2:38][CH2:37][CH2:36][C:35]=34)[CH:28]=[CH:27][N:26]=2)=[CH:10][C:11]([NH:23][C:1](=[O:4])[CH:2]=[CH2:3])=[C:12]([N:14]2[CH2:15][C:16]3([N:21]([CH3:22])[CH2:20][CH2:19][CH2:18]3)[CH2:17]2)[CH:13]=1

Participants

5

Reactant 3

HCID 13140Acryloyl chlorideHCID 81531DiisopropylethylamineHCID 866772994-methoxy-6-(8-methyl-2,8-diazaspiro[3.4]octan-2-yl)-N'-[4-(4,5,6,7-tetrahydropyrazolo[1,5-a]pyridin-3-yl)pyrimidin-2-yl]benzene-1,3-diamine2×

Product 1

HCID 86677298N-(4-Methoxy-2-{8-methyl-2,8-diazaspiro[3.4]octan-2-yl}-5-{[4-(4,5,6,7-tetrahydropyrazolo[1,5-a]pyridin-3-yl)pyrimidin-2-yl]amino}phenyl)prop-2-enamideYield 50.4%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

A solution of acryloyl chloride (42 μL, 0.52 mmol) in CH2Cl2 (1 mL) was added dropwise to 4-methoxy-6-(8-methyl-2,8-diazaspiro[3.4]octan-2-yl)-N′-[4-(4,5,6,7-tetrahydropyrazolo[1,5-a]pyridin-3-yl)pyrimidin-2-yl]benzene-1,3-diamine (Intermediate 141, 240 mg, 0.52 mmol) and DIPEA (0.099 mL, 0.57 mmol) in CH2Cl2 (10 mL), which was cooled in an ice/water bath. The mixture was stirred for 1 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 (135 mg, 50%) as a yellow solid after trituration with CH3CN; 1H NMR: 1.61-1.74 (2H, m), 1.73-1.85 (2H, m), 1.87-1.99 (2H, m), 2.03 (2H, t), 2.35 (3H, s), 2.61 (2H, t), 3.01 (2H, t), 3.60 (2H, d), 3.84 (3H, s), 3.89 (2H, d), 4.09 (2H, t), 5.70 (1H, d), 6.14-6.30 (2H, m), 6.47 (1H, dd), 6.95 (1H, d), 7.73 (1H, s), 7.83 (1H, s), 8.05 (1H, s), 8.26 (1H, d), 9.26 (1H, s); m/z: ES+ MH+ 515.7.

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-e815703de23d471b8eca27fd4afc3166
Source dataset
uspto-grants-2015_02
Patent number
US08946235B2

Reaction notes

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