Hydrazine, 2-isopropyl-1-nicotinoyl- → HCID 71468215, compound

HRID 1401063Notes

Reaction equation

HRID 1401063 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](O)=[O:20])=[CH:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[CH:22]([NH:25][NH:26][C:27](=[O:34])[C:28]1[CH:33]=[CH:32][CH:31]=[N:30][CH:29]=1)([CH3:24])[CH3:23].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>[CH:22]([N:25]([C:19](=[O:20])/[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])([CH3:4])[CH3:3])=[O:7])[CH:9]=1)[NH:26][C:27](=[O:34])[C:28]1[CH:33]=[CH:32][CH:31]=[N:30][CH:29]=1)([CH3:24])[CH3:23]

Participants

7

Reactant 4

HCID 18220Hydrazine, 2-isopropyl-1-nicotinoyl-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, compound

Product 1

HCID 71468215HCID 71468215, compound

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

To solution containing (E)-3-(1-(tert-butoxycarbonyl)-1H-indol-3-yl)acrylic acid (200 mg, 0.696 mmol), N′-isopropylnicotino hydrazide (187.14 mg, 1.04 mmol) and HATU (397.02 mg, 1.04 mmol) dissolved in DMF (7.0 ml), N,N-diisopropylethylamine (DIPEA)(0.1819 ml, 1.04 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-(1-isopropyl-2-nicotinoyl hydrazinyl)-3-oxoprop-1-enyl)-1H-indole-1-carboxylate was obtained (83 mg, 26.6%).

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-(1-isopropyl-2-nicotinoyl hydrazinyl)-3-oxoprop-1-enyl)-1H-indole-1-carboxylate
  7. customwas obtained (83 mg, 26.6%)

Sources & evidence

ORD record
ord-69ce961b5b0f4113b36d3e0e6ca3d3b4
Source dataset
uspto-grants-2014_12
Patent number
US08906952B2

Reaction notes

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