Potassium Phosphate, Tribasic → (S)-5-fluoro-2-(5-fluoro-1-tosyl-1H-pyrrolo[2,3-b]pyridin-3-yl)-6-((1-hydroxy-3,3-dimethylbutan-2-yl)amino)nicotinonitrile

HRID 1055085Notes

Reaction equation

HRID 1055085 reaction equation
[F:1][C:2]1[CH:3]=[C:4]2[C:10](B3OC(C)(C)C(C)(C)O3)=[CH:9][N:8]([S:20]([C:23]3[CH:28]=[CH:27][C:26]([CH3:29])=[CH:25][CH:24]=3)(=[O:22])=[O:21])[C:5]2=[N:6][CH:7]=1.Cl[C:31]1[N:38]=[C:37]([NH:39][C@@H:40]([C:43]([CH3:46])([CH3:45])[CH3:44])[CH2:41][OH:42])[C:36]([F:47])=[CH:35][C:32]=1[C:33]#[N:34].[O-]P([O-])([O-])=O.[K+].[K+].[K+].CC(C1C=C(C(C)C)C(C2C=CC=CC=2P(C2CCCCC2)C2CCCCC2)=C(C(C)C)C=1)C>O.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd].C(#N)C.O>[F:47][C:36]1[C:37]([NH:39][C@@H:40]([C:43]([CH3:46])([CH3:45])[CH3:44])[CH2:41][OH:42])=[N:38][C:31]([C:10]2[C:4]3[C:5](=[N:6][CH:7]=[C:2]([F:1])[CH:3]=3)[N:8]([S:20]([C:23]3[CH:28]=[CH:27][C:26]([CH3:29])=[CH:25][CH:24]=3)(=[O:22])=[O:21])[CH:9]=2)=[C:32]([CH:35]=1)[C:33]#[N:34]

Participants

8

Reactant 4

HCID 62657Potassium Phosphate, TribasicHCID 111557942-Dicyclohexylphosphino-2',4',6'-triisoprophylbiphenylHCID 672856905-fluoro-1-((4-methylphenyl)sulfonyl)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrrolo(2,3-b)pyridine2×HCID 86714760(S)-2-chloro-5-fluoro-6-((1-hydroxy-3,3-dimethylbutan-2-yl)amino)nicotinonitrile2×

Product 1

HCID 71247622(S)-5-fluoro-2-(5-fluoro-1-tosyl-1H-pyrrolo[2,3-b]pyridin-3-yl)-6-((1-hydroxy-3,3-dimethylbutan-2-yl)amino)nicotinonitrile

Reagents, catalysts & solvents 3

HCID 9811564Bis(dibenzylideneacetone)palladiumCatalystHCID 962WaterSolventHCID 18373917Acetonitrile--water (1/1)Solvent

Conditions

Temperature
120 °C

Procedure

A solution of 5-fluoro-1-(p-tolylsulfonyl)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrrolo[2,3-b]pyridine, 7a, (1.84 g, 4.42 mmol), (S)-2-chloro-5-fluoro-6-((l-hydroxy-3,3-dimethylbutan-2-yl)amino)nicotinonitrile, 97a, (1.00 g, 3.68 mmol) and K3PO4 (2.40 g, 11.22 mmol) in 2-methyl-THF (12 mL) and water (2 mL) was purged with nitrogen for 30 minutes. X-Phos (0.14 g, 0.294 mmol) and Pd2(dba)3 (0.07 g, 0.07 mmol) were added and the reaction mixture was heated at 120° C. in a pressure vial for 2 hours. The reaction mixture was cooled to room temperature, filtered and concentrated in vacuo. The residue was dissolved in EtOAc (50 mL) and washed with water. The organic layer was dried (MgSO4), filtered and concentrated in vacuo. The crude product was purified by silica gel chromatography (0-40% EtOAc/Hexanes gradient) to afford 1.88 g as a foamy solid: 1H NMR (300 MHz, CDCl3) δ 8.64 (s, 1H), 8.36 (d, J=2.0 Hz, 1H), 8.26 (m, 1H), 8.14 (d, J=8.4 Hz, 2H), 7.46 (d, J=12 Hz, 2H), 7.33 (d, J=7.5 Hz, 1H), 5.34 (m, 1H), 4.42-4.31 (m, 1H), 4.02 (m, 1H), 3.75 (m, 1H), 2.40 (s, 3H), 1.26 (s, 9H); LC/MS (60-90% ACN/water 5 min with 0.9% FA, C4) m/z 526.49 (M+H), retention time=1.83 minutes.

Workup

  1. temperatureThe reaction mixture was cooled to room temperature
  2. filtrationfiltered
  3. concentrationconcentrated in vacuo
  4. dissolutionThe residue was dissolved in EtOAc (50 mL)
  5. washwashed with water
  6. dry with materialThe organic layer was dried (MgSO4)
  7. filtrationfiltered
  8. concentrationconcentrated in vacuo
  9. customThe crude product was purified by silica gel chromatography (0-40% EtOAc/Hexanes gradient)
  10. customto afford 1.88 g as a foamy solid

Sources & evidence

ORD record
ord-4583260262d04d56baa9e585a0ebb5f3
Source dataset
uspto-grants-2016_07
Patent number
US09394302B2

Reaction notes

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