Diisopropylethylamine → HCID 86711423, compound

HRID 1401062Notes

Reaction equation

HRID 1401062 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].C([NH:25][NH:26][C:27](=[O:34])[C:28]1[CH:33]=[CH:32][CH:31]=[CH:30][N:29]=1)(C)C.CN(C(ON1N=N[C:45]2[CH:46]=CC=N[C:44]1=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:45]([N:29]1[CH:30]=[CH:31][CH:32]=[CH:33][CH:28]1[C:27]([NH:26][NH:25][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])([CH3:4])[CH3:3])=[O:7])[CH:9]=1)=[O:34])([CH3:46])[CH3:44]

Participants

7

Reactant 4

HCID 81531DiisopropylethylamineHCID 3041746N-(Propan-2-yl)pyridine-2-carbohydrazonic acidHCID 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 86711423HCID 86711423, 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′-isopropyl picolino 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, filtered, and concentrated under reduced pressure. The residue was separated through silica gel chromatography (n-hexane:EtOAc=3:1) dried so that the ivory (E)-tert-butyl 3-(3-(1-isopropyl-2-picolinoyl hydrazinyl)-3-oxoprop-1-enyl)-1H-indole-1-carboxylate was obtained (108.1 mg, 34.6%).

Workup

  1. washwashed with water and brine
  2. dry with materialdried with anhydrous MgSO4
  3. filtrationfiltered
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was separated through silica gel chromatography (n-hexane:EtOAc=3:1)
  7. dry with materialdried so that the ivory (E)-tert-butyl 3-(3-(1-isopropyl-2-picolinoyl hydrazinyl)-3-oxoprop-1-enyl)-1H-indole-1-carboxylate
  8. customwas obtained (108.1 mg, 34.6%)

Sources & evidence

ORD record
ord-b4056cb176704a6cb38793326e15cb75
Source dataset
uspto-grants-2014_12
Patent number
US08906952B2

Reaction notes

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