Diisopropylethylamine → 2-(3-Fluoro-phenyl)-4-methyl-pyrimidine-5-carboxylic acid (5-fluoro-3,3-dimethyl-2,3-dihydro-indol-1-yl)-amide

HRID 2381914Notes

Reaction equation

HRID 2381914 reaction equation
[F:1][C:2]1[CH:3]=[C:4]([C:8]2[N:13]=[C:12]([CH3:14])[C:11]([C:15]([OH:17])=O)=[CH:10][N:9]=2)[CH:5]=[CH:6][CH:7]=1.CN(C(SC1[N+]([O-])=CC=CC=1)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C.[F:49][C:50]1[CH:51]=[C:52]2[C:56](=[CH:57][CH:58]=1)[N:55]([NH2:59])[CH2:54][C:53]2([CH3:61])[CH3:60]>CN(C=O)C.O.CCOC(C)=O>[F:49][C:50]1[CH:51]=[C:52]2[C:56](=[CH:57][CH:58]=1)[N:55]([NH:59][C:15]([C:11]1[C:12]([CH3:14])=[N:13][C:8]([C:4]3[CH:5]=[CH:6][CH:7]=[C:2]([F:1])[CH:3]=3)=[N:9][CH:10]=1)=[O:17])[CH2:54][C:53]2([CH3:61])[CH3:60]

Participants

8

Reactant 4

HCID 81531DiisopropylethylamineHCID 10571248(Dimethylamino)-N,N-dimethyl((1-oxo-1lambda~5~-pyridin-2-yl)sulfanyl)methaniminium hexafluorophosphateHCID 617025872-(3-Fluorophenyl)-4-methylpyrimidine-5-carboxylic acidHCID 68555288HCID 68555288, compound

Product 1

HCID 250995182-(3-Fluoro-phenyl)-4-methyl-pyrimidine-5-carboxylic acid (5-fluoro-3,3-dimethyl-2,3-dihydro-indol-1-yl)-amideYield 80%

Reagents, catalysts & solvents 3

HCID 962WaterSolventHCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
80 °C

Procedure

A solution of 2-(3-fluoro-phenyl)-4-methyl-pyrimidine-5-carboxylic acid (348 mg, 1.5 mmol), HOTT (618 mg, 1.66 mmol), and DIPEA (700 μL, 4.01 mmol) in DMF (10 mL) is stirred at rt under N2 for 10 min. 5-Fluoro-3,3-dimethyl-2,3-dihydro-indol-1-ylamine (239 mg, 1.33 mmol) is added. The resulting mixture is stirred at 80° C. overnight. The mixture is cooled and 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 purified by silica gel chromatography eluting with 15% EtOAc in heptane to afford 2-(3-fluoro-phenyl)-4-methyl-pyrimidine-5-carboxylic acid (5-fluoro-3,3-dimethyl-2,3-dihydro-indol-1-yl)-amide (416 mg, 80%) as a solid. MS: 395 (M+H). 1H NMR (300 MHz, DMSO-d6): δ 10.43 (s, 1H), 8.99 (s, 1H), 8.28 (d, 1H), 8.15-8.11 (m, 1H), 7.66-7.58 (m, 1H), 7.46-7.39 (m, 1H), 7.06 (dd, 1H), 6.95-6.88 (m, 1H), 6.75-6.71 (m, 1H), 3.51 (s, 2H), 2.68 (s, 3H), 1.33 (s, 6H).

Workup

  1. temperatureThe mixture is cooled
  2. customThe organic phase is separated
  3. washwashed with saturated aqueous NaHCO3, water and brine
  4. dry with materialdried (MgSO4)
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customThe residue is purified by silica gel chromatography
  8. washeluting with 15% EtOAc in heptane

Sources & evidence

ORD record
ord-c9237b38f1834f9c93b02258275a21f4
Source dataset
uspto-grants-2012_09
Patent number
US08258130B2

Reaction notes

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