Isovaleryl chloride → HCID 52913022, compound

HRID 341068Notes

Reaction equation

HRID 341068 reaction equation
[NH2:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[N:8]1[C:32](=[O:33])[C:11]2=[CH:12][N:13]([CH2:20][C:21]3[CH:26]=[CH:25][C:24]([N:27]4[CH:31]=[CH:30][CH:29]=[N:28]4)=[CH:23][CH:22]=3)[C:14]3[CH:15]=[CH:16][CH:17]=[CH:18][C:19]=3[C:10]2=[N:9]1.C(N(C(C)C)CC)(C)C.[CH3:43][CH:44]([CH3:49])[CH2:45][C:46](Cl)=[O:47]>ClCCl>[CH3:43][CH:44]([CH3:49])[CH2:45][C:46]([NH:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[N:8]1[C:32](=[O:33])[C:11]2=[CH:12][N:13]([CH2:20][C:21]3[CH:26]=[CH:25][C:24]([N:27]4[CH:31]=[CH:30][CH:29]=[N:28]4)=[CH:23][CH:22]=3)[C:14]3[CH:15]=[CH:16][CH:17]=[CH:18][C:19]=3[C:10]2=[N:9]1)=[O:47]

Participants

5

Reactant 3

HCID 66054Isovaleryl chlorideHCID 81531DiisopropylethylamineHCID 52913023HCID 52913023, compound

Product 1

HCID 52913022HCID 52913022, compound

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

2-(2-Aminophenyl)-5-{[4-(1H-pyrazol-1-yl)phenyl]methyl}-2,5-dihydro-3H-pyrazolo[4,3-c]quinolin-3-one (Example 626, 30 mg, 0.069 mmol) and diisopropylethylamine (30 μL, 0.17 mmol, 2.5 equiv) were combined in dichloromethane (1 mL) and treated with 3-methylbutanoyl chloride (9.2 mg, 0.076 mmol, 1.1 equiv). After 15 minutes at ambient temperature, the mixture was concentrated in vacuo and the residue was purified by preparative reverse phase HPLC (eluting 80:20 to 5:95; water containing 0.1% trifluoroacetic acid:acetonitrile containing 0.1% trifluoroacetic acid), providing the title compound; 1H-NMR (400 MHz, d6-DMSO) δ 9.72 (1H, br s), 9.33 (1H, s), 8.47 (1H, d, J=2.3 Hz), 8.28 (1H, d, J=7.7 Hz), 7.93 (1H, d, 8.0 Hz), 7.84 (1H, d, J=8.9 Hz), 7.83 (2H, d, J=8.5 Hz), 7.72 (1H, br s), 7.69-7.64 (2H, m), 7.59 (1H, t, J=7.3 Hz), 7.47 (2H, d, J=8.4 Hz), 7.37 (1H, t, J=7.5 Hz), 7.27 (1H, t, J=7.5 Hz), 6.53 (1H, m), 5.83 (2H, s), 2.15 (2H, d, J=7.3 Hz), 2.09-1.94 (1H, m), 0.86 (6H, d, J=6.6 Hz) ppm; high resolution mass spectrometry (ES+) m/z 517.2391 [(M+H)+; calculated for C31H29N6O2: 517.2347].

Workup

  1. concentrationthe mixture was concentrated in vacuo
  2. customthe residue was purified by preparative reverse phase HPLC (eluting 80:20 to 5:95; water containing 0.1% trifluoroacetic acid:acetonitrile containing 0.1% trifluoroacetic acid)

Sources & evidence

ORD record
ord-56f10acd7ad24d75aa041546cd4bb400
Source dataset
uspto-grants-2014_11
Patent number
US08895580B2

Reaction notes

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