Diisopropylethylamine → HCID 71468217, compound

HRID 1401065Notes

Reaction equation

HRID 1401065 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].[OH:22][C:23]1[CH:35]=[CH:34][C:26]([C:27]([NH:29][NH:30][CH:31]([CH3:33])[CH3:32])=[O:28])=[CH:25][CH:24]=1.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>[OH:22][C:23]1[CH:35]=[CH:34][C:26]([C:27]([NH:29][N:30]([C:19](=[O:21])/[CH:18]=[CH:17]/[C:10]2[C:11]3[C:16](=[CH:15][CH:14]=[CH:13][CH:12]=3)[N:8]([C:6]([O:5][C:1]([CH3:3])([CH3:4])[CH3:2])=[O:7])[CH:9]=2)[CH:31]([CH3:32])[CH3:33])=[O:28])=[CH:25][CH:24]=1

Participants

7

Reactant 4

HCID 81531DiisopropylethylamineHCID 3516284-Hydroxy-N'-(propan-2-yl)benzohydrazideHCID 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 71468217HCID 71468217, 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), 4-hydroxy-N′-isopropylbenzohydrazide (202.81 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 (40% EtOAc) and dried so that ivory (E)-tert-butyl 3-(3-(2-(4-hydroxybenzoyl)-1-isopropylhydrazinyl)-3-oxoprop-1-enyl)-1H-indole-1-carboxylate was obtained (102.5 mg, 31.8%).

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 (40% EtOAc)
  6. dry with materialdried so that ivory (E)-tert-butyl 3-(3-(2-(4-hydroxybenzoyl)-1-isopropylhydrazinyl)-3-oxoprop-1-enyl)-1H-indole-1-carboxylate
  7. customwas obtained (102.5 mg, 31.8%)

Sources & evidence

ORD record
ord-73563ed189e74f249d2dc3e813a780d7
Source dataset
uspto-grants-2014_12
Patent number
US08906952B2

Reaction notes

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