Diisopropylethylamine → N-[4-[(3aR,6aR)-5-methyl-2,3,3a,4,6,6a-hexahydropyrrolo[3,4-b]pyrrol-1-yl]-2-methoxy-5-nitrophenyl]-4-pyrazolo[1,5-a]pyridin-3-ylpyrimidin-2-amine

HRID 1842813Notes

Reaction equation

HRID 1842813 reaction equation
CCN(C(C)C)C(C)C.F[C:11]1[C:16]([N+:17]([O-:19])=[O:18])=[CH:15][C:14]([NH:20][C:21]2[N:26]=[C:25]([C:27]3[CH:28]=[N:29][N:30]4[CH:35]=[CH:34][CH:33]=[CH:32][C:31]=34)[CH:24]=[CH:23][N:22]=2)=[C:13]([O:36][CH3:37])[CH:12]=1.[CH3:38][N:39]1[CH2:43][C@@H:42]2[NH:44][CH2:45][CH2:46][C@@H:41]2[CH2:40]1>FC(F)(F)CO>[CH3:38][N:39]1[CH2:40][C@@H:41]2[C@@H:42]([N:44]([C:11]3[C:16]([N+:17]([O-:19])=[O:18])=[CH:15][C:14]([NH:20][C:21]4[N:26]=[C:25]([C:27]5[CH:28]=[N:29][N:30]6[CH:35]=[CH:34][CH:33]=[CH:32][C:31]=56)[CH:24]=[CH:23][N:22]=4)=[C:13]([O:36][CH3:37])[CH:12]=3)[CH2:45][CH2:46]2)[CH2:43]1

Participants

5

Reactant 3

HCID 81531DiisopropylethylamineHCID 44221716(3aR,6aR)-5-Methyloctahydropyrrolo[3,4-b]pyrrole2×HCID 71240784N-(4-fluoro-2-methoxy-5-nitrophenyl)-4-pyrazolo[1,5-a]pyridin-3-ylpyrimidin-2-amine2×

Product 1

HCID 71270179N-[4-[(3aR,6aR)-5-methyl-2,3,3a,4,6,6a-hexahydropyrrolo[3,4-b]pyrrol-1-yl]-2-methoxy-5-nitrophenyl]-4-pyrazolo[1,5-a]pyridin-3-ylpyrimidin-2-amineYield 52%

Reagents, catalysts & solvents 1

HCID 64092,2,2-TrifluoroethanolSolvent

Conditions

Temperature
140 °C

Procedure

DIPEA (0.343 mL, 1.97 mmol) was added to a suspension of N-(4-fluoro-2-methoxy-5-s nitrophenyl)-4-pyrazolo[1,5-a]pyridin-3-ylpyrimidin-2-amine (Intermediate 155, 300 mg, 0.79 mmol) and (3aR,6aR)-5-methyl-2,3,3a,4,6,6a-hexahydro-1H-pyrrolo[3,4-b]pyrrole (Intermediate 37, 109 mg, 0.87 mmol) in 2,2,2-trifluoroethanol (5 mL) and the mixture was heated in a microwave at 140° C. for 1 h. After cooling, the mixture was part-purified by ion exchange chromatography, using an SCX column and eluting with 7M methanolic ammonia. Appropriate fractions were then concentrated in vacuo onto silica. Further purification by FCC, eluting with 0-4% 7N methanolic ammonia in CH2Cl2 gave the title compound (198 mg, 52%) as a slightly impure orange/red solid which was used without further purification; 1H NMR (CDCl3): 1.89 (1H, dd), 2.06-2.18 (1H, m), 2.21 (3H, s), 2.31 (1H, dd), 2.47 (2H, ddd), 2.65 (1H, t), 2.99-3.10 (1H, m), 3.26 (1H, t), 3.51-3.60 (1H, m), 3.98 (3H, s), 4.39-4.46 (1H, m), 6.46 (1H, s), 6.93 (1H, td), 7.04 (1H, d), 7.38 (1H, s), 7.43 (1H, ddd), 8.36 (1H, d), 8.46 (1H, s), 8.52 (1H, m), 8.58 (1H, m), 8.98 (1H, s); m/z: ES+ MH+ 487.15.

Workup

  1. temperatureAfter cooling
  2. customthe mixture was part-purified by ion exchange chromatography
  3. washeluting with 7M methanolic ammonia
  4. concentrationAppropriate fractions were then concentrated in vacuo onto silica
  5. customFurther purification by FCC
  6. washeluting with 0-4% 7N methanolic ammonia in CH2Cl2

Sources & evidence

ORD record
ord-11de790d8ce44905a47daaf0b25afc13
Source dataset
uspto-grants-2015_02
Patent number
US08946235B2

Reaction notes

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