Diisopropylethylamine → HCID 44540591, compound

HRID 1615986Notes

Reaction equation

HRID 1615986 reaction equation
[Br:1][C:2]1[C:3]([C:8]([OH:10])=O)=[N:4][CH:5]=[CH:6][CH:7]=1.F[P-](F)(F)(F)(F)F.N1(OC(N(C)C)=[N+](C)C)C2N=CC=CC=2N=N1.CCN(C(C)C)C(C)C.[NH:44]1[C:52]2[C:47](=[C:48]([C:53]3[CH:54]=[C:55]([NH2:62])[C:56]4[CH:57]=[N:58][NH:59][C:60]=4[CH:61]=3)[CH:49]=[CH:50][CH:51]=2)[CH:46]=[CH:45]1>CN(C=O)C.C(Cl)Cl>[Br:1][C:2]1[C:3]([C:8]([NH:62][C:55]2[CH:54]=[C:53]([C:48]3[CH:49]=[CH:50][CH:51]=[C:52]4[C:47]=3[CH:46]=[CH:45][NH:44]4)[CH:61]=[C:60]3[C:56]=2[CH:57]=[N:58][NH:59]3)=[O:10])=[N:4][CH:5]=[CH:6][CH:7]=1

Participants

7

Reactant 4

HCID 81531DiisopropylethylamineHCID 20501293-Bromopyridine-2-carboxylic AcidHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 582680196-(1H-indol-4-yl)-1H-indazol-4-amine

Product 1

HCID 44540591HCID 44540591, compoundYield 66.8%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 6344DichloromethaneSolvent

Procedure

To a solution of 3-bromo-2-pyridinecarboxylic acid (available from Fluorochem Ltd, 0.81 g, 4.03 mmol) in DMF (10 ml) was added O-(7-azabenzotriazol-1-yl)-1,1,3,3-tetramethyluronium hexafluorophosphate (1.53 g, 4.03 mmol) and DIPEA (2.11 ml). The mixture was stirred at room temperature for 10 mins then 6-(1H-indol-4-yl)-1H-indazol-4-amine (0.5 g, 2.01 mmol) was added and the mixture stirred at room temperature for 2 h. The reaction mixture was concentrated in vacuo to 5 ml which was added to 2×50 g aminopropyl cartridges that had been preconditioned with MeOH. The reaction mixture remained on the cartridges for 2 h before being eluted with MeOH. The solvent was removed in vacuo to give a brown oil that was placed in the vacuum oven overnight. DCM was added to the oil and a precipitate occurred, which was collected by filtration to give the title compound (0.58 g) as a cream solid.

Workup

  1. stirringthe mixture stirred at room temperature for 2 h
  2. concentrationThe reaction mixture was concentrated in vacuo to 5 ml which
  3. additionwas added to 2×50 g aminopropyl cartridges that
  4. waitThe reaction mixture remained on the cartridges for 2 h
  5. washbefore being eluted with MeOH
  6. customThe solvent was removed in vacuo
  7. customto give a brown oil that
  8. customwas placed in the vacuum oven overnight
  9. filtrationwhich was collected by filtration

Sources & evidence

ORD record
ord-48e1e219c839436da96fe8c5fa8a41c5
Source dataset
uspto-grants-2014_07
Patent number
US08765743B2

Reaction notes

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