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Diisopropylethylamine → 4-Methyl-2-pyridin-3-yl-pyrimidine-5-carboxylic acid (5-fluoro-3-methyl-indol-1-yl)-amide

HRID 2381903
Notes
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Reaction equation

HRID 2381903 reaction equation
[CH3:1][C:2]1[C:7]([C:8]([OH:10])=O)=[CH:6][N:5]=[C:4]([C:11]2[CH:12]=[N:13][CH:14]=[CH:15][CH:16]=2)[N:3]=1.CN(C(ON1N=NC2C=CC(=CC1=2)Cl)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C.[F:51][C:52]1[CH:53]=[C:54]2[C:58](=[CH:59][CH:60]=1)[N:57]([NH2:61])[CH:56]=[C:55]2[CH3:62]>CN(C=O)C.O.CCOC(C)=O>[F:51][C:52]1[CH:53]=[C:54]2[C:58](=[CH:59][CH:60]=1)[N:57]([NH:61][C:8]([C:7]1[C:2]([CH3:1])=[N:3][C:4]([C:11]3[CH:12]=[N:13][CH:14]=[CH:15][CH:16]=3)=[N:5][CH:6]=1)=[O:10])[CH:56]=[C:55]2[CH3:62]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

8

Reactant 4

HCID 81531DiisopropylethylamineHCID 42624899O-(6-Chlorobenzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphateHCID 457912394-Methyl-2-(pyridin-3-yl)pyrimidine-5-carboxylic acidHCID 685549575-Fluoro-3-methyl-indol-1-ylamine

Product 1

HCID 250994764-Methyl-2-pyridin-3-yl-pyrimidine-5-carboxylic acid (5-fluoro-3-methyl-indol-1-yl)-amide
Yield 21.3%

Reagents, catalysts & solvents 3

HCID 962WaterSolventHCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

A solution of 4-methyl-2-pyridin-3-yl-pyrimidine-5-carboxylic acid (502 mg, 2.33 mmol), HCTU (1.054 g, 2.55 mmol), and DIPEA (1.10 mL, 6.30 mmol) in DMF (10 mL) is stirred at rt under N2 for 10 min. 5-Fluoro-3-methyl-indol-1-ylamine (341 mg, 2.08 mmol) is added. The resulting mixture is stirred at rt overnight. The mixture is portioned between EtOAc and water. The organic phase is separated, washed with saturated aqueous NaHCO3, water and brine, dried (MgSO4), filtered and concentrated in vacuo. The residue is triturated in ether (4 times) to afford 4-methyl-2-pyridin-3-yl-pyrimidine-5-carboxylic acid (5-fluoro-3-methyl-indol-1-yl)-amide (160 mg, 21%) as a solid. MS: 362 (M+H). 1H NMR (300 MHz, DMSO-d6): δ 11.86 (s, 1H), 9.58 (s, 1H), 9.24 (s, 1H), 8.79-8.78 (m, 1H), 8.74 (td, 1H), 7.62 (dd, 1H), 7.44 (dd, 1H), 7.37-7.36 (m, 2H), 7.06 (td, 1H), 2.78 (s, 3H), 2.27 (s, 3H).

Workup

  1. customThe organic phase is separated
  2. washwashed with saturated aqueous NaHCO3, water and brine
  3. dry with materialdried (MgSO4)
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. customThe residue is triturated in ether (4 times)

Sources & evidence

ORD record
ord-a32af42f7d564e659df8dda1ac4b2739
Source dataset
uspto-grants-2012_09
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08258130B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes