Diisopropylethylamine → HCID 71468332, compound

HRID 1401072Notes

Reaction equation

HRID 1401072 reaction equation
[C:1]([O:5][C:6]([N:8]1[C:16]2[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=2)[C:10](/[CH:17]=[CH:18]/[C:19]([OH:21])=O)=[CH:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[Br:22][C:23]1[CH:24]=[C:25]([CH:33]=[CH:34][CH:35]=1)[C:26]([NH:28][NH:29][CH:30]([CH3:32])[CH3:31])=[O:27].CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.C(N(CC)C(C)C)(C)C>CN(C=O)C.CCOC(C)=O>[Br:22][C:23]1[CH:24]=[C:25]([CH:33]=[CH:34][CH:35]=1)[C:26]([NH:28][N:29]([C:19](=[O:21])/[CH:18]=[CH:17]/[C:10]1[C:11]2[C:16](=[CH:15][CH:14]=[CH:13][CH:12]=2)[N:8]([C:6]([O:5][C:1]([CH3:2])([CH3:3])[CH3:4])=[O:7])[CH:9]=1)[CH:30]([CH3:32])[CH3:31])=[O:27]

Participants

7

Reactant 4

HCID 81531DiisopropylethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 11323657HCID 11323657, compoundHCID 86711427HCID 86711427, compound

Product 1

HCID 71468332HCID 71468332, compound

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

To solution containing (E)-3-(1-(tert-butoxycarbonyl)-1H-indol-3-yl)acrylic acid (100 mg, 0.35 mmol), 3-bromo-N′-isopropylbenzohydrazide (134.24 mg, 0.52 mmol) and HATU (198.5 mg, 0.52 mmol) dissolved in DMF (4.0 ml), N,N-diisopropylethylamine (DIPEA)(0.09094 ml, 0.52 mmol) was slowly drop-wise added and stirred at room temperature for 12 hr. The reaction mixture was diluted with EtOAc, washed with water and brine, dried with anhydrous MgSO4, filtered, and concentrated under reduced pressure. The residue was separated through silica gel chromatography (n-hexane:EtOAc=3:1) and dried so that ivory (E)-tert-butyl 3-(3-(2-(3-bromobenzoyl)-1-isopropylhydrazinyl)-3-oxoprop-1-enyl)-1H-indole-1-carboxylate was obtained (53.6 mg, 29.3%).

Workup

  1. washwashed with water and brine
  2. dry with materialdried with anhydrous MgSO4
  3. filtrationfiltered
  4. concentrationconcentrated under reduced pressure
  5. customThe residue was separated through silica gel chromatography (n-hexane:EtOAc=3:1)
  6. dry with materialdried so that ivory (E)-tert-butyl 3-(3-(2-(3-bromobenzoyl)-1-isopropylhydrazinyl)-3-oxoprop-1-enyl)-1H-indole-1-carboxylate
  7. customwas obtained (53.6 mg, 29.3%)

Sources & evidence

ORD record
ord-681dd36dbadf4863b5a38abb3f564656
Source dataset
uspto-grants-2014_12
Patent number
US08906952B2

Reaction notes

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